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test(linter/plugins): cases for SourceCode#getLastToken() and SourceCode#getLastToken() #16048

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overlookmotel merged 1 commit into from
Nov 24, 2025
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test(linter/plugins): cases for SourceCode#getLastToken() and SourceCode#getLastToken() #16048

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62 changes: 56 additions & 6 deletions apps/oxlint/test/tokens.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1230,11 +1230,61 @@ describe('when calling getFirstToken & getTokenAfter', () => {
});
});

// https://github.com/eslint/eslint/blob/v9.39.1/tests/lib/languages/js/source-code/token-store.js#L1674-L1742
describe('when calling getLastToken & getTokenBefore', () => {
/* oxlint-disable-next-line no-disabled-tests expect-expect */
it('is to be implemented');
/* oxlint-disable-next-line no-unused-expressions */
getLastToken;
/* oxlint-disable-next-line no-unused-expressions */
getTokenBefore;
it('should retrieve all tokens and comments in the node', () => {
sourceText = '(function(a, /*b,*/ c){})';
const tokens = [];
// TODO: replace this verbatim range with `ast`
let token = getLastToken({ range: [0, 25] } as Node);

while (token) {
tokens.push(token);
token = getTokenBefore(token, {
includeComments: true,
});
}

expect(tokens.reverse().map((token) => token.value)).toEqual([
'(',
'function',
'(',
'a',
',',
'b,',
'c',
')',
'{',
'}',
')',
]);
});

it('should retrieve all tokens and comments in the node (no spaces)', () => {
sourceText = '(function(a,/*b,*/c){})';
const tokens = [];
// TODO: replace this verbatim range with `ast`
let token = getLastToken({ range: [0, 23] } as Node);

while (token) {
tokens.push(token);
token = getTokenBefore(token, {
includeComments: true,
});
}

expect(tokens.reverse().map((token) => token.value)).toEqual([
'(',
'function',
'(',
'a',
',',
'b,',
'c',
')',
'{',
'}',
')',
]);
});
});
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