vscode/src/vs/editor/test/common/viewLayout/viewLineParts.test.ts

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
'use strict';

import * as assert from 'assert';
import {DecorationSegment, ILineDecoration, LineDecorationsNormalizer} from 'vs/editor/common/viewLayout/viewLineParts';
import {Range} from 'vs/editor/common/core/range';

suite('Editor ViewLayout - ViewLineParts', () => {

	function newDecoration(startLineNumber:number, startColumn:number, endLineNumber:number, endColumn:number, inlineClassName:string): ILineDecoration {
		return {
			range: new Range(startLineNumber, startColumn, endLineNumber, endColumn),
			options: {
				inlineClassName: inlineClassName
			}
		};
	}

	test('Bug 9827:Overlapping inline decorations can cause wrong inline class to be applied', () => {

		var result = LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 11, 'c1'),
			newDecoration(1, 3, 1, 4, 'c2')
		]);

		assert.deepEqual(result, [
			new DecorationSegment(0, 1, 'c1'),
			new DecorationSegment(2, 2, 'c2 c1'),
			new DecorationSegment(3, 9, 'c1'),
		]);
	});

	test('issue #3462: no whitespace shown at the end of a decorated line', () => {

		var result = LineDecorationsNormalizer.normalize(3, 1, [
			newDecoration(3, 15, 3, 21, 'trailing whitespace'),
			newDecoration(3, 20, 3, 21, 'inline-folded'),
		]);

		assert.deepEqual(result, [
			new DecorationSegment(14, 18, 'trailing whitespace'),
			new DecorationSegment(19, 19, 'trailing whitespace inline-folded')
		]);
	});

	test('issue #3661: Link decoration bleeds to next line when wrapping', () => {

		var result = LineDecorationsNormalizer.normalize(3, 12, [
			newDecoration(2, 12, 3, 30, 'detected-link')
		]);

		assert.deepEqual(result, [
			new DecorationSegment(11, 28, 'detected-link'),
		]);
	});

	test('ViewLineParts', () => {

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 2, 'c1'),
			newDecoration(1, 3, 1, 4, 'c2')
		]), [
			new DecorationSegment(0, 0, 'c1'),
			new DecorationSegment(2, 2, 'c2')
		]);

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 3, 'c1'),
			newDecoration(1, 3, 1, 4, 'c2')
		]), [
			new DecorationSegment(0, 1, 'c1'),
			new DecorationSegment(2, 2, 'c2')
		]);

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 4, 'c1'),
			newDecoration(1, 3, 1, 4, 'c2')
		]), [
			new DecorationSegment(0, 1, 'c1'),
			new DecorationSegment(2, 2, 'c1 c2')
		]);

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 4, 'c1'),
			newDecoration(1, 1, 1, 4, 'c1*'),
			newDecoration(1, 3, 1, 4, 'c2')
		]), [
			new DecorationSegment(0, 1, 'c1 c1*'),
			new DecorationSegment(2, 2, 'c1 c1* c2')
		]);

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 4, 'c1'),
			newDecoration(1, 1, 1, 4, 'c1*'),
			newDecoration(1, 1, 1, 4, 'c1**'),
			newDecoration(1, 3, 1, 4, 'c2')
		]), [
			new DecorationSegment(0, 1, 'c1 c1* c1**'),
			new DecorationSegment(2, 2, 'c1 c1* c1** c2')
		]);

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 4, 'c1'),
			newDecoration(1, 1, 1, 4, 'c1*'),
			newDecoration(1, 1, 1, 4, 'c1**'),
			newDecoration(1, 3, 1, 4, 'c2'),
			newDecoration(1, 3, 1, 4, 'c2*')
		]), [
			new DecorationSegment(0, 1, 'c1 c1* c1**'),
			new DecorationSegment(2, 2, 'c1 c1* c1** c2 c2*')
		]);

		assert.deepEqual(LineDecorationsNormalizer.normalize(1, 1, [
			newDecoration(1, 1, 1, 4, 'c1'),
			newDecoration(1, 1, 1, 4, 'c1*'),
			newDecoration(1, 1, 1, 4, 'c1**'),
			newDecoration(1, 3, 1, 4, 'c2'),
			newDecoration(1, 3, 1, 5, 'c2*')
		]), [
			new DecorationSegment(0, 1, 'c1 c1* c1**'),
			new DecorationSegment(2, 2, 'c1 c1* c1** c2 c2*'),
			new DecorationSegment(3, 3, 'c2*')
		]);
	});

});