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microsoft
GitHub Repository: microsoft/vscode
 Path: blob/main/src/vs/editor/contrib/folding/test/browser/hiddenRangeModel.test.ts
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/*---------------------------------------------------------------------------------------------

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 *  Copyright (c) Microsoft Corporation. All rights reserved.

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 *  Licensed under the MIT License. See License.txt in the project root for license information.

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 *--------------------------------------------------------------------------------------------*/

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import assert from 'assert';

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import { IRange } from '../../../../common/core/range.js';

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import { FoldingModel } from '../../browser/foldingModel.js';

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import { HiddenRangeModel } from '../../browser/hiddenRangeModel.js';

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import { computeRanges } from '../../browser/indentRangeProvider.js';

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import { createTextModel } from '../../../../test/common/testTextModel.js';

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import { TestDecorationProvider } from './foldingModel.test.js';

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import { ensureNoDisposablesAreLeakedInTestSuite } from '../../../../../base/test/common/utils.js';

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interface ExpectedRange {

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	startLineNumber: number;

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	endLineNumber: number;

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}

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suite('Hidden Range Model', () => {

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	ensureNoDisposablesAreLeakedInTestSuite();

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	function r(startLineNumber: number, endLineNumber: number): ExpectedRange {

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		return { startLineNumber, endLineNumber };

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	}

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	function assertRanges(actual: IRange[], expectedRegions: ExpectedRange[], message?: string) {

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		assert.deepStrictEqual(actual.map(r => ({ startLineNumber: r.startLineNumber, endLineNumber: r.endLineNumber })), expectedRegions, message);

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	}

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	test('hasRanges', () => {

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		const lines = [

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		/* 1*/	'/**',

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		/* 2*/	' * Comment',

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		/* 3*/	' */',

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		/* 4*/	'class A {',

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		/* 5*/	'  void foo() {',

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		/* 6*/	'    if (true) {',

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		/* 7*/	'      //hello',

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		/* 8*/	'    }',

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		/* 9*/	'  }',

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		/* 10*/	'}'];

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		const textModel = createTextModel(lines.join('\n'));

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		const foldingModel = new FoldingModel(textModel, new TestDecorationProvider(textModel));

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		const hiddenRangeModel = new HiddenRangeModel(foldingModel);

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		try {

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			assert.strictEqual(hiddenRangeModel.hasRanges(), false);

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			const ranges = computeRanges(textModel, false, undefined);

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			foldingModel.update(ranges);

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			foldingModel.toggleCollapseState([foldingModel.getRegionAtLine(1)!, foldingModel.getRegionAtLine(6)!]);

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			assertRanges(hiddenRangeModel.hiddenRanges, [r(2, 3), r(7, 7)]);

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			assert.strictEqual(hiddenRangeModel.hasRanges(), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(1), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(2), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(3), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(4), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(5), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(6), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(7), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(8), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(9), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(10), false);

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			foldingModel.toggleCollapseState([foldingModel.getRegionAtLine(4)!]);

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			assertRanges(hiddenRangeModel.hiddenRanges, [r(2, 3), r(5, 9)]);

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			assert.strictEqual(hiddenRangeModel.hasRanges(), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(1), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(2), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(3), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(4), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(5), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(6), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(7), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(8), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(9), true);

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			assert.strictEqual(hiddenRangeModel.isHidden(10), false);

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			foldingModel.toggleCollapseState([foldingModel.getRegionAtLine(1)!, foldingModel.getRegionAtLine(6)!, foldingModel.getRegionAtLine(4)!]);

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			assertRanges(hiddenRangeModel.hiddenRanges, []);

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			assert.strictEqual(hiddenRangeModel.hasRanges(), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(1), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(2), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(3), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(4), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(5), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(6), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(7), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(8), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(9), false);

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			assert.strictEqual(hiddenRangeModel.isHidden(10), false);

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		} finally {

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			textModel.dispose();

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			hiddenRangeModel.dispose();

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		}

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	});

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});

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