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import assert = require('assert');
import { parseDiffHunk, DiffHunk, getModifiedContentFromDiffHunk } from '../../common/diffHunk';
import { DiffLine, DiffChangeType } from '../../common/diffHunk';
import { getDiffLineByPosition, mapHeadLineToDiffHunkPosition, mapCommentsToHead } from '../../common/diffPositionMapping';
const diff_hunk_0 = [
`@@ -1,5 +1,6 @@`,
` {`,
` "appService.zipIgnorePattern": [`,
` "node_modules{,/**}"`,
`- ]`,
`-}`,
`\\ No newline at end of file`,
`+ ],`,
`+ "editor.insertSpaces": false`,
`+}`
].join('\n');
describe('diff hunk parsing', () => {
it('diffhunk iterator', () => {
const diffHunkReader = parseDiffHunk(diff_hunk_0);
const diffHunkIter = diffHunkReader.next();
const diffHunk = diffHunkIter.value;
assert.equal(diffHunk.diffLines.length, 9);
assert.deepEqual(diffHunk.diffLines[0], new DiffLine(DiffChangeType.Control, -1, -1, 0, `@@ -1,5 +1,6 @@`));
assert.deepEqual(diffHunk.diffLines[1], new DiffLine(DiffChangeType.Context, 1, 1, 1, ` {`));
assert.deepEqual(diffHunk.diffLines[2], new DiffLine(DiffChangeType.Context, 2, 2, 2, ` "appService.zipIgnorePattern": [`));
assert.deepEqual(diffHunk.diffLines[3], new DiffLine(DiffChangeType.Context, 3, 3, 3, ` "node_modules{,/**}"`));
assert.deepEqual(diffHunk.diffLines[4], new DiffLine(DiffChangeType.Delete, 4, -1, 4, `- ]`));
assert.deepEqual(diffHunk.diffLines[5], new DiffLine(DiffChangeType.Delete, 5, -1, 5, `-}`, false));
assert.deepEqual(diffHunk.diffLines[6], new DiffLine(DiffChangeType.Add, -1, 4, 7, `+ ],`));
assert.deepEqual(diffHunk.diffLines[7], new DiffLine(DiffChangeType.Add, -1, 5, 8, `+ "editor.insertSpaces": false`));
assert.deepEqual(diffHunk.diffLines[8], new DiffLine(DiffChangeType.Add, -1, 6, 9, `+}`));
});
it('getDiffLineByPosition', () => {
const diffHunkReader = parseDiffHunk(diff_hunk_0);
const diffHunkIter = diffHunkReader.next();
const diffHunk = diffHunkIter.value;
for (let i = 0; i < diffHunk.diffLines.length; i++) {
const diffLine = diffHunk.diffLines[i];
assert.deepEqual(getDiffLineByPosition([diffHunk], diffLine.positionInHunk), diffLine, `diff line ${i}`);
}
});
it('mapHeadLineToDiffHunkPosition', () => {
const diffHunkReader = parseDiffHunk(diff_hunk_0);
const diffHunkIter = diffHunkReader.next();
const diffHunk = diffHunkIter.value;
for (let i = 0; i < diffHunk.diffLines.length; i++) {
const diffLine = diffHunk.diffLines[i];
switch (diffLine.type) {
case DiffChangeType.Delete:
assert.equal(mapHeadLineToDiffHunkPosition([diffHunk], '', diffLine.oldLineNumber, true), diffLine.positionInHunk);
break;
case DiffChangeType.Add:
assert.equal(mapHeadLineToDiffHunkPosition([diffHunk], '', diffLine.newLineNumber, false), diffLine.positionInHunk);
break;
case DiffChangeType.Context:
assert.equal(mapHeadLineToDiffHunkPosition([diffHunk], '', diffLine.oldLineNumber, true), diffLine.positionInHunk);
assert.equal(mapHeadLineToDiffHunkPosition([diffHunk], '', diffLine.newLineNumber, false), diffLine.positionInHunk);
break;
default:
break;
}
}
});
it('#239. Diff hunk parsing fails when line count for added content is omitted', () => {
const diffHunkReader = parseDiffHunk('@@ -0,0 +1 @@');
const diffHunkIter = diffHunkReader.next();
const diffHunk = diffHunkIter.value;
assert.equal(diffHunk.diffLines.length, 1);
});
it('', () => {
const diffHunkReader = parseDiffHunk(`@@ -1 +1,5 @@
# README
+
+This is my readme
+
+Another line"`);
const diffHunkIter = diffHunkReader.next();
const diffHunk = diffHunkIter.value;
assert.equal(diffHunk.diffLines.length, 5);
});
describe('mapCommentsToHead', () => {
it('should ignore comments that are on a deleted diff line', () => {
const comments = [{
position: 66
}];
const diffHunk = new DiffHunk(481, 16, 489, 10, 54);
diffHunk.diffLines.push(new DiffLine(DiffChangeType.Delete, 489, -1, 66, '- this.editorBlurTimeout.cancelAndSet(() => {'));
const mappedComments = mapCommentsToHead([diffHunk], '', comments as any);
assert(mappedComments.length === 1);
assert.equal(mappedComments[0].absolutePosition, undefined);
});
it('should handle comments that are on an added diff line', () => {
const comments = [{
position: 55
}];
const diffHunk = new DiffHunk(481, 16, 481, 17, 54);
diffHunk.diffLines.push(new DiffLine(DiffChangeType.Add, 481, 482, 55, '+ () this.editorBlurTimeout.cancelAndSet(() => {'));
const mappedComments = mapCommentsToHead([diffHunk], '', comments as any);
assert(mappedComments.length === 1);
assert.equal(mappedComments[0].absolutePosition, 482);
});
});
describe('getModifiedContentFromDiffHunk', () => {
const originalContent = [
`/*---------------------------------------------------------------------------------------------`,
`* 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 { window, commands, ExtensionContext } from 'vscode';`,
`import { showQuickPick, showInputBox } from './basicInput';`,
`import { multiStepInput } from './multiStepInput';`,
`import { quickOpen } from './quickOpen';`,
``,
`export function activate(context: ExtensionContext) {`,
` context.subscriptions.push(commands.registerCommand('samples.quickInput', async () => {`,
` const options: { [key: string]: (context: ExtensionContext) => Promise<void> } = {`,
` showQuickPick,`,
` showInputBox,`,
` multiStepInput,`,
` quickOpen,`,
` };`,
` const quickPick = window.createQuickPick();`,
` quickPick.items = Object.keys(options).map(label => ({ label }));`,
` quickPick.onDidChangeSelection(selection => {`,
` if (selection[0]) {`,
` options[selection[0].label](context)`,
` .catch(console.error);`,
` }`,
` });`,
` quickPick.onDidHide(() => quickPick.dispose());`,
` quickPick.show();`,
` }));`,
`}`
].join('\n');
it('returns the original file when there is no patch', () => {
assert.equal(getModifiedContentFromDiffHunk(originalContent, ''), originalContent);
});
it('returns modified content for patch with multiple additions', () => {
const patch = [
`"@@ -9,6 +9,7 @@ import { window, commands, ExtensionContext } from 'vscode';`,
` import { showQuickPick, showInputBox } from './basicInput';`,
` import { multiStepInput } from './multiStepInput';`,
` import { quickOpen } from './quickOpen';`,
`+import { promptCommand } from './promptCommandWithHistory';`,
` `,
` export function activate(context: ExtensionContext) {`,
` context.subscriptions.push(commands.registerCommand('samples.quickInput', async () => {`,
`@@ -17,6 +18,7 @@ export function activate(context: ExtensionContext) {`,
` showInputBox,`,
` multiStepInput,`,
` quickOpen,`,
`+ promptCommand`,
` };`,
` const quickPick = window.createQuickPick();`,
` quickPick.items = Object.keys(options).map(label => ({ label }));`
].join('\n');
const lines = originalContent.split('\n');
lines.splice(11, 0, `import { promptCommand } from './promptCommandWithHistory';`);
lines.splice(20, 0, ` promptCommand`);
const expectedModifiedContent = lines.join('\n');
const modifiedContent = getModifiedContentFromDiffHunk(originalContent, patch);
assert.equal(modifiedContent, expectedModifiedContent);
});
});
});