86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
import { computeDiff } from '~/ide/lib/diff/diff';
|
|
|
|
describe('Multi-file editor library diff calculator', () => {
|
|
describe('computeDiff', () => {
|
|
it('returns empty array if no changes', () => {
|
|
const diff = computeDiff('123', '123');
|
|
|
|
expect(diff).toEqual([]);
|
|
});
|
|
|
|
describe('modified', () => {
|
|
it.each`
|
|
originalContent | newContent | lineNumber
|
|
${'123'} | ${'1234'} | ${1}
|
|
${'123\n123\n123'} | ${'123\n1234\n123'} | ${2}
|
|
`(
|
|
'marks line $lineNumber as added and modified but not removed',
|
|
({ originalContent, newContent, lineNumber }) => {
|
|
const diff = computeDiff(originalContent, newContent)[0];
|
|
|
|
expect(diff.added).toBeTruthy();
|
|
expect(diff.modified).toBeTruthy();
|
|
expect(diff.removed).toBeUndefined();
|
|
expect(diff.lineNumber).toBe(lineNumber);
|
|
},
|
|
);
|
|
});
|
|
|
|
describe('added', () => {
|
|
it.each`
|
|
originalContent | newContent | lineNumber
|
|
${'123'} | ${'123\n123'} | ${1}
|
|
${'123\n123\n123'} | ${'123\n123\n1234\n123'} | ${3}
|
|
`(
|
|
'marks line $lineNumber as added but not modified and not removed',
|
|
({ originalContent, newContent, lineNumber }) => {
|
|
const diff = computeDiff(originalContent, newContent)[0];
|
|
|
|
expect(diff.added).toBeTruthy();
|
|
expect(diff.modified).toBeUndefined();
|
|
expect(diff.removed).toBeUndefined();
|
|
expect(diff.lineNumber).toBe(lineNumber);
|
|
},
|
|
);
|
|
});
|
|
|
|
describe('removed', () => {
|
|
it.each`
|
|
originalContent | newContent | lineNumber | modified
|
|
${'123'} | ${''} | ${1} | ${undefined}
|
|
${'123\n123\n123'} | ${'123\n123'} | ${2} | ${true}
|
|
`(
|
|
'marks line $lineNumber as removed',
|
|
({ originalContent, newContent, lineNumber, modified }) => {
|
|
const diff = computeDiff(originalContent, newContent)[0];
|
|
|
|
expect(diff.added).toBeUndefined();
|
|
expect(diff.modified).toBe(modified);
|
|
expect(diff.removed).toBeTruthy();
|
|
expect(diff.lineNumber).toBe(lineNumber);
|
|
},
|
|
);
|
|
});
|
|
|
|
it('includes line number of change', () => {
|
|
const diff = computeDiff('123', '')[0];
|
|
|
|
expect(diff.lineNumber).toBe(1);
|
|
});
|
|
|
|
it('includes end line number of change', () => {
|
|
const diff = computeDiff('123', '')[0];
|
|
|
|
expect(diff.endLineNumber).toBe(1);
|
|
});
|
|
|
|
it('disregards changes for EOL type changes', () => {
|
|
const text1 = 'line1\nline2\nline3\n';
|
|
const text2 = 'line1\r\nline2\r\nline3\r\n';
|
|
|
|
expect(computeDiff(text1, text2)).toEqual([]);
|
|
expect(computeDiff(text2, text1)).toEqual([]);
|
|
});
|
|
});
|
|
});
|