git.delta.rocks / unique-network / refs/commits / 472f7ca19a8e

difftreelog

Nesting tests refactoring WIP

Max Andreev2023-01-20parent: #15d448e.patch.diff
in: master

5 files changed

modifiedtests/src/nesting/nest.test.tsdiffbeforeafterboth
before · tests/src/nesting/nest.test.ts
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617import {IKeyringPair} from '@polkadot/types/types';18import {expect, itSub, Pallets, usingPlaygrounds} from '../util';1920describe('Integration Test: Composite nesting tests', () => {21  let alice: IKeyringPair;22  let bob: IKeyringPair;2324  before(async () => {25    await usingPlaygrounds(async (helper, privateKey) => {26      const donor = await privateKey({filename: __filename});27      [alice, bob] = await helper.arrange.createAccounts([50n, 10n], donor);28    });29  });3031  /// TODO move32  itSub('Performs the full suite: bundles a token, transfers, and unnests', async ({helper}) => {33    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});34    const targetToken = await collection.mintToken(alice);3536    // Create an immediately nested token37    const nestedToken = await collection.mintToken(alice, targetToken.nestingAccount());38    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});39    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());4041    // Create a token to be nested42    const newToken = await collection.mintToken(alice);4344    // Nest45    await newToken.nest(alice, targetToken);46    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});47    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());4849    // Move bundle to different user50    await targetToken.transfer(alice, {Substrate: bob.address});51    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});52    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());53    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});54    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());5556    // Unnest57    await newToken.unnest(bob, targetToken, {Substrate: bob.address});58    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});59    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: bob.address});60  });61});6263describe('Integration Test: Various token type nesting', () => {64  let alice: IKeyringPair;65  let bob: IKeyringPair;66  let charlie: IKeyringPair;6768  before(async () => {69    await usingPlaygrounds(async (helper, privateKey) => {70      const donor = await privateKey({filename: __filename});71      [alice, bob, charlie] = await helper.arrange.createAccounts([200n, 10n, 10n], donor);72    });73  });7475  itSub('Admin (NFT): allows an Admin to nest a token', async ({helper}) => {76    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true}}});77    await collection.addAdmin(alice, {Substrate: bob.address});78    const targetToken = await collection.mintToken(alice, {Substrate: charlie.address});7980    // Create an immediately nested token81    const nestedToken = await collection.mintToken(bob, targetToken.nestingAccount());82    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});83    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());8485    // Create a token to be nested and nest86    const newToken = await collection.mintToken(bob);87    await newToken.nest(bob, targetToken);88    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});89    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());90  });9192  itSub('Admin (NFT): Admin and Token Owner can operate together', async ({helper}) => {93    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true}}});94    await collection.addAdmin(alice, {Substrate: bob.address});95    const targetToken = await collection.mintToken(alice, {Substrate: charlie.address});9697    // Create an immediately nested token by an administrator98    const nestedToken = await collection.mintToken(bob, targetToken.nestingAccount());99    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});100    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());101102    // Create a token to be nested and nest103    const newToken = await collection.mintToken(alice, {Substrate: charlie.address});104    await newToken.nest(charlie, targetToken);105    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});106    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());107  });108109  itSub('Admin (NFT): allows an Admin to nest a token (Restricted nesting)', async ({helper}) => {110    const collectionA = await helper.nft.mintCollection(alice);111    await collectionA.addAdmin(alice, {Substrate: bob.address});112    const collectionB = await helper.nft.mintCollection(alice);113    await collectionB.addAdmin(alice, {Substrate: bob.address});114    await collectionA.setPermissions(alice, {nesting: {collectionAdmin: true, restricted:[collectionB.collectionId]}});115    const targetToken = await collectionA.mintToken(alice, {Substrate: charlie.address});116117    // Create an immediately nested token118    const nestedToken = await collectionB.mintToken(bob, targetToken.nestingAccount());119    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});120    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());121122    // Create a token to be nested and nest123    const newToken = await collectionB.mintToken(bob);124    await newToken.nest(bob, targetToken);125    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});126    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());127  });128129  // ---------- Non-Fungible ----------130131  itSub('NFT: allows an Owner to nest/unnest their token', async ({helper}) => {132    const collection = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}}});133    await collection.addToAllowList(alice, {Substrate: charlie.address});134    const targetToken = await collection.mintToken(charlie);135    await collection.addToAllowList(alice, targetToken.nestingAccount());136137    // Create an immediately nested token138    const nestedToken = await collection.mintToken(charlie, targetToken.nestingAccount());139    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});140    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());141142    // Create a token to be nested and nest143    const newToken = await collection.mintToken(charlie);144    await newToken.nest(charlie, targetToken);145    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});146    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());147  });148149  itSub('NFT: allows an Owner to nest/unnest their token (Restricted nesting)', async ({helper}) => {150    const collectionA = await helper.nft.mintCollection(alice);151    const collectionB = await helper.nft.mintCollection(alice);152    //await collectionB.addAdmin(alice, {Substrate: bob.address});153    const targetToken = await collectionA.mintToken(alice, {Substrate: charlie.address});154155    await collectionA.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true, restricted:[collectionB.collectionId]}});156    await collectionA.addToAllowList(alice, {Substrate: charlie.address});157    await collectionA.addToAllowList(alice, targetToken.nestingAccount());158159    await collectionB.setPermissions(alice, {access: 'AllowList', mintMode: true});160    await collectionB.addToAllowList(alice, {Substrate: charlie.address});161    await collectionB.addToAllowList(alice, targetToken.nestingAccount());162163    // Create an immediately nested token164    const nestedToken = await collectionB.mintToken(charlie, targetToken.nestingAccount());165    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});166    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());167168    // Create a token to be nested and nest169    const newToken = await collectionB.mintToken(charlie);170    await newToken.nest(charlie, targetToken);171    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});172    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());173  });174175  // ---------- Fungible ----------176177  itSub('Fungible: allows an Owner to nest/unnest their token', async ({helper}) => {178    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}}});179    const collectionFT = await helper.ft.mintCollection(alice);180    const targetToken = await collectionNFT.mintToken(alice, {Substrate: charlie.address});181182    await collectionNFT.addToAllowList(alice, {Substrate: charlie.address});183    await collectionNFT.addToAllowList(alice, targetToken.nestingAccount());184185    await collectionFT.setPermissions(alice, {access: 'AllowList', mintMode: true});186    await collectionFT.addToAllowList(alice, {Substrate: charlie.address});187    await collectionFT.addToAllowList(alice, targetToken.nestingAccount());188189    // Create an immediately nested token190    await collectionFT.mint(charlie, 5n, targetToken.nestingAccount());191    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);192193    // Create a token to be nested and nest194    await collectionFT.mint(charlie, 5n);195    await collectionFT.transfer(charlie, targetToken.nestingAccount(), 2n);196    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(7n);197  });198199  itSub('Fungible: allows an Owner to nest/unnest their token (Restricted nesting)', async ({helper}) => {200    const collectionNFT = await helper.nft.mintCollection(alice);201    const collectionFT = await helper.ft.mintCollection(alice);202    const targetToken = await collectionNFT.mintToken(alice, {Substrate: charlie.address});203204    await collectionNFT.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true, restricted:[collectionFT.collectionId]}});205    await collectionNFT.addToAllowList(alice, {Substrate: charlie.address});206    await collectionNFT.addToAllowList(alice, targetToken.nestingAccount());207208    await collectionFT.setPermissions(alice, {access: 'AllowList', mintMode: true});209    await collectionFT.addToAllowList(alice, {Substrate: charlie.address});210    await collectionFT.addToAllowList(alice, targetToken.nestingAccount());211212    // Create an immediately nested token213    await collectionFT.mint(charlie, 5n, targetToken.nestingAccount());214    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);215216    // Create a token to be nested and nest217    await collectionFT.mint(charlie, 5n);218    await collectionFT.transfer(charlie, targetToken.nestingAccount(), 2n);219    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(7n);220  });221222  itSub.ifWithPallets('ReFungible: getTopmostOwner works correctly with Nesting', [Pallets.ReFungible], async({helper}) => {223    const collectionNFT = await helper.nft.mintCollection(alice, {224      permissions: {225        nesting: {226          tokenOwner: true,227        },228      },229    });230    const collectionRFT = await helper.rft.mintCollection(alice);231232    const nft = await collectionNFT.mintToken(alice, {Substrate: alice.address});233    const rft = await collectionRFT.mintToken(alice, 100n, {Substrate: alice.address});234235    expect(await rft.getTopmostOwner()).deep.equal({Substrate: alice.address});236237    await rft.transfer(alice, nft.nestingAccount(), 40n);238239    expect(await rft.getTopmostOwner()).deep.equal(null);240241    await rft.transfer(alice, nft.nestingAccount(), 60n);242243    expect(await rft.getTopmostOwner()).deep.equal({Substrate: alice.address});244245    await rft.transferFrom(alice, nft.nestingAccount(), {Substrate: alice.address}, 30n);246247    expect(await rft.getTopmostOwner()).deep.equal(null);248249    await rft.transferFrom(alice, nft.nestingAccount(), {Substrate: alice.address}, 70n);250251    expect(await rft.getTopmostOwner()).deep.equal({Substrate: alice.address});252  });253});254255describe('Negative Test: Nesting', () => {256  let alice: IKeyringPair;257  let bob: IKeyringPair;258259  before(async () => {260    await usingPlaygrounds(async (helper, privateKey) => {261      const donor = await privateKey({filename: __filename});262      [alice, bob] = await helper.arrange.createAccounts([100n, 50n], donor);263    });264  });265266  itSub('Disallows excessive token nesting', async ({helper}) => {267    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});268    let token = await collection.mintToken(alice);269270    const maxNestingLevel = 5;271272    // Create a nested-token matryoshka273    for (let i = 0; i < maxNestingLevel; i++) {274      token = await collection.mintToken(alice, token.nestingAccount());275    }276277    // The nesting depth is limited by `maxNestingLevel`278    await expect(collection.mintToken(alice, token.nestingAccount()))279      .to.be.rejectedWith(/structure\.DepthLimit/);280    expect(await token.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});281    expect(await token.getChildren()).to.be.length(0);282  });283284  // ---------- Admin ------------285286  itSub('Admin (NFT): disallows an Admin to operate nesting when only TokenOwner is allowed', async ({helper}) => {287    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});288    await collection.addAdmin(alice, {Substrate: bob.address});289    const targetToken = await collection.mintToken(alice);290291    // Try to create an immediately nested token as collection admin when it's disallowed292    await expect(collection.mintToken(bob, targetToken.nestingAccount()))293      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);294295    // Try to create a token to be nested and nest296    const newToken = await collection.mintToken(bob);297    await expect(newToken.nest(bob, targetToken))298      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);299300    expect(await targetToken.getChildren()).to.be.length(0);301    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: bob.address});302  });303304  itSub('Admin (NFT): disallows a Token Owner to operate nesting when only Admin is allowed', async ({helper}) => {305    const collection = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {collectionAdmin: true}}});306    const targetToken = await collection.mintToken(alice, {Substrate: bob.address});307    await collection.addToAllowList(alice, {Substrate: bob.address});308    await collection.addToAllowList(alice, targetToken.nestingAccount());309310    // Try to create a nested token as token owner when it's disallowed311    await expect(collection.mintToken(bob, targetToken.nestingAccount()))312      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);313314    // Try to create a token to be nested and nest315    const newToken = await collection.mintToken(bob);316    await expect(newToken.nest(bob, targetToken))317      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);318319    expect(await targetToken.getChildren()).to.be.length(0);320    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: bob.address});321  });322323  itSub('Admin (NFT): disallows an Admin to unnest someone else\'s token', async ({helper}) => {324    const collection = await helper.nft.mintCollection(alice, {limits: {ownerCanTransfer: true}, permissions: {access: 'AllowList', mintMode: true, nesting: {collectionAdmin: true}}});325    //await collection.addAdmin(alice, {Substrate: bob.address});326    const targetToken = await collection.mintToken(alice, {Substrate: bob.address});327    await collection.addToAllowList(alice, {Substrate: bob.address});328    await collection.addToAllowList(alice, targetToken.nestingAccount());329330    // Try to nest somebody else's token331    const newToken = await collection.mintToken(bob);332    await expect(newToken.nest(alice, targetToken))333      .to.be.rejectedWith(/common\.NoPermission/);334335    // Try to unnest a token belonging to someone else as collection admin336    const nestedToken = await collection.mintToken(alice, targetToken.nestingAccount());337    await expect(nestedToken.unnest(alice, targetToken, {Substrate: bob.address}))338      .to.be.rejectedWith(/common\.AddressNotInAllowlist/);339340    expect(await targetToken.getChildren()).to.be.length(1);341    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});342    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());343  });344345  itSub('Admin (NFT): disallows an Admin to nest a token from an unlisted collection (Restricted nesting)', async ({helper}) => {346    const collectionA = await helper.nft.mintCollection(alice);347    const collectionB = await helper.nft.mintCollection(alice);348    await collectionA.setPermissions(alice, {nesting: {collectionAdmin: true, restricted: [collectionA.collectionId]}});349    const targetToken = await collectionA.mintToken(alice);350351    // Try to create a nested token from another collection352    await expect(collectionB.mintToken(alice, targetToken.nestingAccount()))353      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);354355    // Create a token in another collection yet to be nested and try to nest356    const newToken = await collectionB.mintToken(alice);357    await expect(newToken.nest(alice, targetToken))358      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);359360    expect(await targetToken.getChildren()).to.be.length(0);361    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});362  });363364  // ---------- Non-Fungible ----------365366  itSub('NFT: disallows to nest token if nesting is disabled', async ({helper}) => {367    // Collection is implicitly not allowed nesting at creation368    const collection = await helper.nft.mintCollection(alice);369    const targetToken = await collection.mintToken(alice);370371    // Try to create a nested token as token owner when it's disallowed372    await expect(collection.mintToken(alice, targetToken.nestingAccount()))373      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);374375    // Try to create a token to be nested and nest376    const newToken = await collection.mintToken(alice);377    await expect(newToken.nest(alice, targetToken))378      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);379380    expect(await targetToken.getChildren()).to.be.length(0);381    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});382  });383384  itSub('NFT: disallows a non-Owner to nest someone else\'s token', async ({helper}) => {385    const collection = await helper.nft.mintCollection(alice);386    const targetToken = await collection.mintToken(alice);387388    await collection.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}});389    await collection.addToAllowList(alice, {Substrate: bob.address});390    await collection.addToAllowList(alice, targetToken.nestingAccount());391392    // Try to create a token to be nested and nest393    const newToken = await collection.mintToken(alice);394    await expect(newToken.nest(bob, targetToken)).to.be.rejectedWith(/common\.NoPermission/);395396    expect(await targetToken.getChildren()).to.be.length(0);397    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});398  });399400  itSub('NFT: disallows a non-Owner to nest someone else\'s token (Restricted nesting)', async ({helper}) => {401    const collection = await helper.nft.mintCollection(alice);402    const targetToken = await collection.mintToken(alice);403404    await collection.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}});405    await collection.addToAllowList(alice, {Substrate: bob.address});406    await collection.addToAllowList(alice, targetToken.nestingAccount());407408    const collectionB = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true}});409    await collectionB.addToAllowList(alice, {Substrate: bob.address});410    await collectionB.addToAllowList(alice, targetToken.nestingAccount());411412    // Try to create a token to be nested and nest413    const newToken = await collectionB.mintToken(alice);414    await expect(newToken.nest(bob, targetToken)).to.be.rejectedWith(/common\.NoPermission/);415416    expect(await targetToken.getChildren()).to.be.length(0);417    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});418  });419420  itSub('NFT: disallows to nest token in an unlisted collection', async ({helper}) => {421    // Create collection with restricted nesting -- even self is not allowed422    const collection = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true, restricted: []}}});423    const targetToken = await collection.mintToken(alice, {Substrate: bob.address});424425    await collection.addToAllowList(alice, {Substrate: bob.address});426    await collection.addToAllowList(alice, targetToken.nestingAccount());427428    // Try to mint in own collection after allowlisting the accounts429    await expect(collection.mintToken(bob, targetToken.nestingAccount()))430      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);431  });432433  // ---------- Fungible ----------434435  itSub('Fungible: disallows to nest token if nesting is disabled', async ({helper}) => {436    const collectionNFT = await helper.nft.mintCollection(alice);437    const collectionFT = await helper.ft.mintCollection(alice);438    const targetToken = await collectionNFT.mintToken(alice);439440    // Try to create an immediately nested token441    await expect(collectionFT.mint(alice, 5n, targetToken.nestingAccount()))442      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);443444    // Try to create a token to be nested and nest445    await collectionFT.mint(alice, 5n);446    await expect(collectionFT.transfer(alice, targetToken.nestingAccount(), 2n))447      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);448    expect(await collectionFT.getBalance({Substrate: alice.address})).to.be.equal(5n);449  });450451  itSub('Fungible: disallows a non-Owner to unnest someone else\'s token', async ({helper}) => {452    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true}}});453    const collectionFT = await helper.ft.mintCollection(alice);454    const targetToken = await collectionNFT.mintToken(alice, {Substrate: bob.address});455456    // Nest some tokens as Alice into Bob's token457    await collectionFT.mint(alice, 5n, targetToken.nestingAccount());458459    // Try to pull it out460    await expect(collectionFT.transferFrom(alice, targetToken.nestingAccount(), {Substrate: bob.address}, 1n))461      .to.be.rejectedWith(/common\.ApprovedValueTooLow/);462    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);463  });464465  itSub('Fungible: disallows a non-Owner to unnest someone else\'s token (Restricted nesting)', async ({helper}) => {466    const collectionNFT = await helper.nft.mintCollection(alice);467    const collectionFT = await helper.ft.mintCollection(alice);468    const targetToken = await collectionNFT.mintToken(alice, {Substrate: bob.address});469470    await collectionNFT.setPermissions(alice, {nesting: {collectionAdmin: true, tokenOwner: true, restricted: [collectionFT.collectionId]}});471472    // Nest some tokens as Alice into Bob's token473    await collectionFT.mint(alice, 5n, targetToken.nestingAccount());474475    // Try to pull it out as Alice still476    await expect(collectionFT.transferFrom(alice, targetToken.nestingAccount(), {Substrate: bob.address}, 1n))477      .to.be.rejectedWith(/common\.ApprovedValueTooLow/);478    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);479  });480481  itSub('Fungible: disallows to nest token in an unlisted collection', async ({helper}) => {482    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true, restricted: []}}});483    const collectionFT = await helper.ft.mintCollection(alice);484    const targetToken = await collectionNFT.mintToken(alice);485486    // Try to mint an immediately nested token487    await expect(collectionFT.mint(alice, 5n, targetToken.nestingAccount()))488      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);489490    // Mint a token and try to nest it491    await collectionFT.mint(alice, 5n);492    await expect(collectionFT.transfer(alice, targetToken.nestingAccount(), 1n))493      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);494495    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(0n);496    expect(await collectionFT.getBalance({Substrate: alice.address})).to.be.equal(5n);497  });498});
addedtests/src/sub/nesting/admin.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/sub/nesting/admin.test.ts
@@ -0,0 +1,87 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {IKeyringPair} from '@polkadot/types/types';
+import {expect, itSub, Pallets, usingPlaygrounds} from '../../util';
+
+describe('Collection admin', () => {
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let charlie: IKeyringPair;
+
+  before(async () => {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      const donor = await privateKey({filename: __filename});
+      [alice, bob, charlie] = await helper.arrange.createAccounts([200n, 10n, 10n], donor);
+    });
+  });
+
+  [
+    {restricted: true},
+    {restricted: false},
+  ].map(testCase => {
+    itSub(`can nest tokens if "collectionAdmin" permission set ${testCase.restricted ? ', in restricted mode' : ''}`, async ({helper}) => {
+      const collectionA = await helper.nft.mintCollection(alice);
+      await collectionA.addAdmin(alice, {Substrate: bob.address});
+      const collectionB = await helper.nft.mintCollection(alice);
+      await collectionB.addAdmin(alice, {Substrate: bob.address});
+      // Collection has permission for collectionAdmin to nest:
+      await collectionA.setPermissions(alice, {nesting:
+        {collectionAdmin: true, restricted: testCase.restricted ? [collectionA.collectionId, collectionB.collectionId] : null},
+      });
+      // Token for nesting in from collectionA:
+      const targetTokenA = await collectionA.mintToken(alice, {Substrate: charlie.address});
+
+      // 1. Create an immediately nested tokens:
+      // 1.1 From own collection:
+      const nestedTokenA = await collectionA.mintToken(bob, targetTokenA.nestingAccount());
+      // 1.2 From different collection:
+      const nestedTokenB = await collectionB.mintToken(bob, targetTokenA.nestingAccount());
+      expect(await nestedTokenA.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});
+      expect(await nestedTokenA.getOwner()).to.be.deep.equal(targetTokenA.nestingAccount().toLowerCase());
+      expect(await nestedTokenB.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});
+      expect(await nestedTokenB.getOwner()).to.be.deep.equal(targetTokenA.nestingAccount().toLowerCase());
+
+      // 2. Create a token to be nested and nest:
+      const newNestedTokenA = await collectionA.mintToken(bob);
+      const newNestedTokenB = await collectionB.mintToken(bob);
+      // 2.1 From own collection:
+      await newNestedTokenA.nest(bob, targetTokenA);
+      // 2.2 From different collection:
+      await newNestedTokenB.nest(bob, targetTokenA);
+      expect(await newNestedTokenB.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});
+      expect(await newNestedTokenB.getOwner()).to.be.deep.equal(targetTokenA.nestingAccount().toLowerCase());
+    });
+  });
+
+  itSub('can operate together with token owner if "collectionAdmin" and "tokenOwner" permissions set', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true}}});
+    await collection.addAdmin(alice, {Substrate: bob.address});
+    const targetToken = await collection.mintToken(alice, {Substrate: charlie.address});
+
+    // Admin can create an immediately nested token:
+    const nestedToken = await collection.mintToken(bob, targetToken.nestingAccount());
+    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});
+    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());
+
+    // Owner can create and and nest:
+    const newToken = await collection.mintToken(alice, {Substrate: charlie.address});
+    await newToken.nest(charlie, targetToken);
+    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});
+    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());
+  });
+});
+
modifiedtests/src/sub/nesting/common.test.tsdiffbeforeafterboth
--- a/tests/src/sub/nesting/common.test.ts
+++ b/tests/src/sub/nesting/common.test.ts
@@ -19,61 +19,77 @@
 import {UniqueNFTCollection, UniqueRFTCollection} from '../../util/playgrounds/unique';
 
 let alice: IKeyringPair;
+let bob: IKeyringPair;
 
 before(async () => {
   await usingPlaygrounds(async (helper, privateKey) => {
     const donor = await privateKey({filename: __filename});
-    [alice] = await helper.arrange.createAccounts([100n], donor);
+    [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
   });
 });
 
 [
-  {mode: 'nft' as const, requiredPallets: []},
-  {mode: 'rft' as const, requiredPallets: [Pallets.ReFungible]},
+  {mode: 'nft' as const, restrictedMode: true, requiredPallets: []},
+  {mode: 'nft' as const, restrictedMode: false, requiredPallets: []},
+  {mode: 'rft' as const, restrictedMode: true, requiredPallets: [Pallets.ReFungible]},
+  {mode: 'rft' as const, restrictedMode: false, requiredPallets: [Pallets.ReFungible]},
 ].map(testCase => {
-  itSub.ifWithPallets(`Owner can nest ${testCase.mode.toUpperCase()} in NFT`, testCase.requiredPallets, async ({helper}) => {
-    // Only NFT allows nesting, permissions should be set:
-    const aliceNFTCollection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});
-    const targetToken = await aliceNFTCollection.mintToken(alice);
+  itSub.ifWithPallets(`Token owner can nest ${testCase.mode.toUpperCase()} in NFT if "tokenOwner" permission set ${testCase.restrictedMode ? 'in restricted mode': ''}`, testCase.requiredPallets, async ({helper}) => {
+    // Only NFT can be target for nesting in
+    const targetNFTCollection = await helper.nft.mintCollection(alice);
+    const targetTokenBob = await targetNFTCollection.mintToken(alice, {Substrate: bob.address});
 
-    const collectionForNesting = await helper[testCase.mode].mintCollection(alice);
+    const collectionForNesting = await helper[testCase.mode].mintCollection(bob);
+    // permissions should be set:
+    await targetNFTCollection.setPermissions(alice, {
+      nesting: {tokenOwner: true, restricted: testCase.restrictedMode ? [collectionForNesting.collectionId] : null},
+    });
 
-    // 1. Alice can immediately create nested token:
+    // 1. Bob can immediately create nested token:
     const nestedToken1 = testCase.mode === 'nft'
-      ? await (collectionForNesting as UniqueNFTCollection).mintToken(alice, targetToken.nestingAccount())
-      : await (collectionForNesting as UniqueRFTCollection).mintToken(alice, 10n, targetToken.nestingAccount());
-    expect(await nestedToken1.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});
-    expect(await nestedToken1.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());
+      ? await (collectionForNesting as UniqueNFTCollection).mintToken(bob, targetTokenBob.nestingAccount())
+      : await (collectionForNesting as UniqueRFTCollection).mintToken(bob, 10n, targetTokenBob.nestingAccount());
+    expect(await nestedToken1.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});
+    expect(await nestedToken1.getOwner()).to.be.deep.equal(targetTokenBob.nestingAccount().toLowerCase());
 
-    // 2. Alice can mint and nest token:
-    const nestedToken2 = await collectionForNesting.mintToken(alice);
-    await nestedToken2.nest(alice, targetToken);
-    expect(await nestedToken2.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});
-    expect(await nestedToken2.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());
+    // 2. Bob can mint and nest token:
+    const nestedToken2 = await collectionForNesting.mintToken(bob);
+    await nestedToken2.nest(bob, targetTokenBob);
+    expect(await nestedToken2.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});
+    expect(await nestedToken2.getOwner()).to.be.deep.equal(targetTokenBob.nestingAccount().toLowerCase());
   });
 });
 
 
-itSub('Owner can nest FT in NFT', async ({helper}) => {
-  // Only NFT allows nesting, permissions should be set:
-  const aliceNFTCollection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});
-  const targetToken = await aliceNFTCollection.mintToken(alice);
+[
+  {restrictedMode: true},
+  {restrictedMode: false},
+].map(testCase => {
+  itSub(`Token owner can nest FT in NFT if "tokenOwner" permission set  ${testCase.restrictedMode ? 'in restricted mode': ''}`, async ({helper}) => {
+    // Only NFT allows nesting, permissions should be set:
+    const targetNFTCollection = await helper.nft.mintCollection(alice);
+    const targetTokenBob = await targetNFTCollection.mintToken(alice, {Substrate: bob.address});
 
-  const collectionForNesting = await helper.ft.mintCollection(alice);
+    const collectionForNesting = await helper.ft.mintCollection(bob);
+    // permissions should be set:
+    await targetNFTCollection.setPermissions(alice, {
+      nesting: {tokenOwner: true, restricted: testCase.restrictedMode ? [collectionForNesting.collectionId] : null},
+    });
 
-  // 1. Alice can immediately create nested tokens:
-  await collectionForNesting.mint(alice, 100n, targetToken.nestingAccount());
-  expect(await collectionForNesting.getTop10Owners()).deep.eq([targetToken.nestingAccount().toLowerCase()]);
-  expect(await collectionForNesting.getBalance(targetToken.nestingAccount())).eq(100n);
+    // 1. Alice can immediately create nested tokens:
+    await collectionForNesting.mint(bob, 100n, targetTokenBob.nestingAccount());
+    expect(await collectionForNesting.getTop10Owners()).deep.eq([targetTokenBob.nestingAccount().toLowerCase()]);
+    expect(await collectionForNesting.getBalance(targetTokenBob.nestingAccount())).eq(100n);
 
-  // 2. Alice can mint and nest token:
-  await collectionForNesting.mint(alice, 100n);
-  await collectionForNesting.transfer(alice, targetToken.nestingAccount(), 50n);
-  expect(await collectionForNesting.getBalance(targetToken.nestingAccount())).eq(150n);
+    // 2. Alice can mint and nest token:
+    await collectionForNesting.mint(bob, 100n);
+    await collectionForNesting.transfer(bob, targetTokenBob.nestingAccount(), 50n);
+    expect(await collectionForNesting.getBalance(targetTokenBob.nestingAccount())).eq(150n);
+  });
 });
 
 
-itSub.ifWithPallets('Owner can transferFrom nested tokens', [Pallets.ReFungible], async ({helper}) => {
+itSub.ifWithPallets('Owner can unnest tokens using transferFrom', [Pallets.ReFungible], async ({helper}) => {
   const collectionToNest = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});
   const tokenA = await collectionToNest.mintToken(alice);
   const tokenB = await collectionToNest.mintToken(alice);
modifiedtests/src/sub/nesting/negative.test.tsdiffbeforeafterboth
--- a/tests/src/sub/nesting/negative.test.ts
+++ b/tests/src/sub/nesting/negative.test.ts
@@ -16,15 +16,16 @@
 
 import {IKeyringPair} from '@polkadot/types/types';
 import {expect, itSub, Pallets, usingPlaygrounds} from '../../util';
-import {UniqueNFTCollection, UniqueRFTCollection} from '../../util/playgrounds/unique';
+import {UniqueFTCollection, UniqueNFTCollection, UniqueNFToken, UniqueRFTCollection, UniqueRFToken} from '../../util/playgrounds/unique';
 import {itEth} from '../../eth/util';
 
 let alice: IKeyringPair;
+let bob: IKeyringPair;
 
 before(async () => {
   await usingPlaygrounds(async (helper, privateKey) => {
     const donor = await privateKey({filename: __filename});
-    [alice] = await helper.arrange.createAccounts([50n], donor);
+    [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
   });
 });
 
@@ -32,7 +33,7 @@
   {mode: 'nft' as const, requiredPallets: []},
   {mode: 'rft' as const, requiredPallets: [Pallets.ReFungible]},
 ].map(testCase => {
-  itSub.ifWithPallets(`Owner cannot nest ${testCase.mode.toUpperCase()} if nesting not allowed`, testCase.requiredPallets, async ({helper}) => {
+  itSub.ifWithPallets(`Owner cannot nest ${testCase.mode.toUpperCase()} if nesting is disabled`, testCase.requiredPallets, async ({helper}) => {
     // Create default collection, permissions are not set:
     const aliceNFTCollection = await helper.nft.mintCollection(alice);
     const targetToken = await aliceNFTCollection.mintToken(alice);
@@ -51,7 +52,7 @@
   });
 });
 
-itSub('Owner cannot nest FT if nesting not allowed', async ({helper}) => {
+itSub('Owner cannot nest FT if nesting is disabled', async ({helper}) => {
   // Create default collection, permissions are not set:
   const aliceNFTCollection = await helper.nft.mintCollection(alice);
   const targetToken = await aliceNFTCollection.mintToken(alice);
@@ -66,6 +67,65 @@
   await expect(collectionForNesting.transfer(alice, targetToken.nestingAccount(), 50n)).to.be.rejectedWith('common.UserIsNotAllowedToNest');
 });
 
+[
+  {mode: 'nft' as const},
+  {mode: 'rft' as const},
+  {mode: 'ft' as const},
+].map(testCase => {
+  itSub(`Non-owner and non-admin cannot nest ${testCase.mode.toUpperCase()} in someone else's tokens`, async ({helper}) => {
+    const targetCollection = await helper.nft.mintCollection(alice, {permissions:
+      {nesting: {tokenOwner: true, collectionAdmin: true}},
+    });
+    const targetToken = await targetCollection.mintToken(alice);
+
+    const nestedCollectionBob = await helper[testCase.mode].mintCollection(bob);
+
+    let nestedTokenBob: UniqueNFToken | UniqueRFToken;
+    switch (testCase.mode) {
+      case 'nft': nestedTokenBob = await (nestedCollectionBob as UniqueNFTCollection).mintToken(bob); break;
+      case 'rft': nestedTokenBob = await (nestedCollectionBob as UniqueRFTCollection).mintToken(bob, 100n); break;
+      case 'ft': await (nestedCollectionBob as UniqueFTCollection).mint(bob, 100n); break;
+    }
+
+    // Bob non-owner of targetToken and non admin of targetCollection, so
+    // 1. cannot mint nested token:
+    switch (testCase.mode) {
+      case 'nft': await expect((nestedCollectionBob as UniqueNFTCollection).mintToken(bob, targetToken.nestingAccount())).to.be.rejectedWith('common.UserIsNotAllowedToNest'); break;
+      case 'rft': await expect((nestedCollectionBob as UniqueRFTCollection).mintToken(bob, 100n, targetToken.nestingAccount())).to.be.rejectedWith('common.UserIsNotAllowedToNest'); break;
+      case 'ft': await expect((nestedCollectionBob as UniqueFTCollection).mint(bob, 100n, targetToken.nestingAccount())).to.be.rejectedWith('common.UserIsNotAllowedToNest'); break;
+    }
+
+    // 2. cannot nest existing token:
+    switch (testCase.mode) {
+      case 'nft':
+      case 'rft': await expect(nestedTokenBob!.transfer(bob, targetToken.nestingAccount())).to.be.rejectedWith('common.UserIsNotAllowedToNest'); break;
+      case 'ft': await expect((nestedCollectionBob as UniqueFTCollection).transfer(bob, targetToken.nestingAccount(), 100n)).to.be.rejectedWith('common.UserIsNotAllowedToNest'); break;
+    }
+  });
+});
+
+[
+  {mode: 'nft' as const, nesting: {tokenOwner: true,  collectionAdmin: false}},
+  {mode: 'nft' as const, nesting: {tokenOwner: false, collectionAdmin: true}},
+].map(testCase => {
+  itSub(`${testCase.nesting.tokenOwner ? 'Admin' : 'Token owner'} cannot nest when only ${testCase.nesting.tokenOwner ? 'tokenOwner' : 'collectionAdmin'} is allowed`, async ({helper}) => {
+    // Create collection with tokenOwner or create collection with collectionAdmin permission:
+    const targetCollection = await helper.nft.mintCollection(alice, {permissions: {nesting: testCase.nesting}});
+    const targetTokenAlice = await targetCollection.mintToken(alice);
+    await targetCollection.addAdmin(alice, {Substrate: bob.address});
+
+    const nestedCollectionAlice = await helper[testCase.mode].mintCollection(alice);
+    const nestedCollectionBob = await helper[testCase.mode].mintCollection(bob);
+    // if nesting permissions restricted for token owner – minter is bob (admin),
+    // if collectionAdmin – alice (owner)
+
+    // FIXME: nesting allowed only for admin but token owner can nest anyway:
+    testCase.nesting.tokenOwner
+      ? await expect(nestedCollectionBob.mintToken(bob, targetTokenAlice.nestingAccount())).to.be.rejectedWith(/common\.UserIsNotAllowedToNest/)
+      : await expect(nestedCollectionAlice.mintToken(alice, targetTokenAlice.nestingAccount())).to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);
+  });
+});
+
 itSub.ifWithPallets('Cannot nest in non existing token', [Pallets.ReFungible], async ({helper}) => {
   const collection = await helper.nft.mintCollection(alice);
   // To avoid UserIsNotAllowedToNest error
@@ -104,7 +164,7 @@
   }
 });
 
-itEth.ifWithPallets('Cannot nest to collection address', [Pallets.ReFungible], async({helper}) => {
+itEth.ifWithPallets('Cannot nest in collection address', [Pallets.ReFungible], async({helper}) => {
   const existingCollection = await helper.nft.mintCollection(alice);
   const existingCollectionAddress = helper.ethAddress.fromCollectionId(existingCollection.collectionId);
   const futureCollectionAddress = helper.ethAddress.fromCollectionId(99999999);
@@ -140,3 +200,62 @@
   await expect(nestedToken2.nest(alice, rftToken)).to.be.rejectedWith('refungible.RefungibleDisallowsNesting');
   await expect(ftCollection.transfer(alice, {Ethereum: helper.ethAddress.fromTokenId(ftCollection.collectionId, 0)})).to.be.rejectedWith('fungible.FungibleDisallowsNesting');
 });
+
+itSub('Cannot nest in restricted collection if collection is not in the list', async ({helper}) => {
+  const {collectionId: allowedCollectionId} = await helper.nft.mintCollection(alice);
+  const notAllowedCollectionNFT = await helper.nft.mintCollection(alice);
+  const notAllowedCollectionRFT = await helper.rft.mintCollection(alice);
+  const notAllowedCollectionFT = await helper.ft.mintCollection(alice);
+
+  // Collection restricted to allowedCollectionId
+  const restrictedCollectionA = await helper.nft.mintCollection(alice, {permissions:
+    {nesting: {tokenOwner: true, restricted: [allowedCollectionId]}},
+  });
+  // Create collection with restricted nesting -- even self is not allowed
+  const restrictedCollectionB = await helper.nft.mintCollection(alice, {permissions:
+    {nesting: {tokenOwner: true, restricted: []}},
+  });
+
+  const targetTokenA = await restrictedCollectionA.mintToken(alice);
+  const targetTokenB = await restrictedCollectionB.mintToken(alice);
+
+  // 1. Cannot mint in own collection after allowlisting the accounts:
+  await expect(restrictedCollectionA.mintToken(alice, targetTokenA.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+  await expect(restrictedCollectionB.mintToken(alice, targetTokenB.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+
+  // 2. Cannot mint from notAllowedCollection:
+  await expect(notAllowedCollectionNFT.mintToken(alice, targetTokenA.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+  await expect(notAllowedCollectionNFT.mintToken(alice, targetTokenB.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+  await expect(notAllowedCollectionRFT.mintToken(alice, 100n, targetTokenA.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+  await expect(notAllowedCollectionRFT.mintToken(alice, 100n, targetTokenB.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+  await expect(notAllowedCollectionFT.mint(alice, 100n, targetTokenA.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+  await expect(notAllowedCollectionFT.mint(alice, 100n, targetTokenB.nestingAccount())).to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
+});
+
+itSub('Cannot create nesting chains greater than 5', async ({helper}) => {
+  const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});
+  let token = await collection.mintToken(alice);
+
+  const maxNestingLevel = 5;
+
+  // Create a nested-token matryoshka
+  for (let i = 0; i < maxNestingLevel; i++) {
+    token = await collection.mintToken(alice, token.nestingAccount());
+  }
+
+  // The nesting depth is limited by `maxNestingLevel`
+  // 1. Cannot mint:
+  await expect(collection.mintToken(alice, token.nestingAccount()))
+    .to.be.rejectedWith(/structure\.DepthLimit/);
+  // 2. Cannot transfer:
+  const anotherToken = await collection.mintToken(alice);
+  await expect(anotherToken.transfer(alice, token.nestingAccount()))
+    .to.be.rejectedWith(/structure\.DepthLimit/);
+  // 3. Cannot nest FT pieces:
+  const ftCollection = await helper.ft.mintCollection(alice);
+  await expect(ftCollection.mint(alice, 100n, token.nestingAccount()))
+    .to.be.rejectedWith(/structure\.DepthLimit/);
+
+  expect(await token.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});
+  expect(await token.getChildren()).to.has.length(0);
+});
modifiedtests/src/sub/refungible/nesting.test.tsdiffbeforeafterboth
--- a/tests/src/sub/refungible/nesting.test.ts
+++ b/tests/src/sub/refungible/nesting.test.ts
@@ -116,22 +116,6 @@
     });
   });
 
-  itSub('cannot nest token if nesting is disabled', async ({helper}) => {
-    const collectionNFT = await helper.nft.mintCollection(alice);
-    const collectionRFT = await helper.rft.mintCollection(alice);
-    const targetToken = await collectionNFT.mintToken(alice);
-
-    // Try to create an immediately nested token
-    await expect(collectionRFT.mintToken(alice, 5n, targetToken.nestingAccount()))
-      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);
-
-    // Try to create a token to be nested and nest
-    const token = await collectionRFT.mintToken(alice, 5n);
-    await expect(token.transfer(alice, targetToken.nestingAccount(), 2n))
-      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);
-    expect(await token.getBalance({Substrate: alice.address})).to.be.equal(5n);
-  });
-
   [
     {restrictedMode: true},
     {restrictedMode: false},
@@ -160,21 +144,5 @@
         .to.be.rejectedWith(/common\.ApprovedValueTooLow/);
       expect(await newToken.getBalance(targetToken.nestingAccount())).to.be.equal(1n);
     });
-  });
-
-  itSub('ReFungible: disallows to nest token to an unlisted collection', async ({helper}) => {
-    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true, restricted: []}}});
-    const collectionRFT = await helper.rft.mintCollection(alice);
-    const targetToken = await collectionNFT.mintToken(alice);
-
-    // Try to create an immediately nested token
-    await expect(collectionRFT.mintToken(alice, 5n, targetToken.nestingAccount()))
-      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
-
-    // Try to create a token to be nested and nest
-    const token = await collectionRFT.mintToken(alice, 5n);
-    await expect(token.transfer(alice, targetToken.nestingAccount(), 2n))
-      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);
-    expect(await token.getBalance({Substrate: alice.address})).to.be.equal(5n);
   });
 });