angular-cn/tools/broccoli/tree-differ.spec.ts

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/// <reference path="../typings/node/node.d.ts" />
/// <reference path="../typings/jasmine/jasmine.d.ts" />
let mockfs = require('mock-fs');
import fs = require('fs');
import TreeDiffer = require('./tree-differ');
describe('TreeDiffer', () => {
afterEach(() => mockfs.restore());
describe('diff of changed files', () => {
it('should list all files but no directories during the first diff', () => {
let testDir = {
'dir1': {
'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)}),
'file-2.txt': mockfs.file({content: 'file-2.txt content', mtime: new Date(1000)}),
'subdir-1': {
'file-1.1.txt': mockfs.file({content: 'file-1.1.txt content', mtime: new Date(1000)})
},
'empty-dir': {}
}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
let diffResult = differ.diffTree();
expect(diffResult.changedPaths)
.toEqual(['file-1.txt', 'file-2.txt', 'subdir-1/file-1.1.txt']);
expect(diffResult.removedPaths).toEqual([]);
});
it('should return empty diff if nothing has changed', () => {
let testDir = {
'dir1': {
'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)}),
'file-2.txt': mockfs.file({content: 'file-2.txt content', mtime: new Date(1000)}),
'subdir-1': {
'file-1.1.txt': mockfs.file({content: 'file-1.1.txt content', mtime: new Date(1000)})
},
}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
let diffResult = differ.diffTree();
expect(diffResult.changedPaths).not.toEqual([]);
expect(diffResult.removedPaths).toEqual([]);
diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual([]);
expect(diffResult.removedPaths).toEqual([]);
});
it('should list only changed files during the subsequent diffs', () => {
let testDir = {
'dir1': {
'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)}),
'file-2.txt': mockfs.file({content: 'file-2.txt content', mtime: new Date(1000)}),
'subdir-1': {
'file-1.1.txt':
mockfs.file({content: 'file-1.1.txt content', mtime: new Date(1000)})
}
}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
let diffResult = differ.diffTree();
expect(diffResult.changedPaths)
.toEqual(['file-1.txt', 'file-2.txt', 'subdir-1/file-1.1.txt']);
// change two files
testDir['dir1']['file-1.txt'] = mockfs.file({content: 'new content', mtime: new Date(1000)});
testDir['dir1']['subdir-1']['file-1.1.txt'] =
mockfs.file({content: 'file-1.1.txt content', mtime: new Date(9999)});
mockfs(testDir);
diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual(['file-1.txt', 'subdir-1/file-1.1.txt']);
expect(diffResult.removedPaths).toEqual([]);
// change one file
testDir['dir1']['file-1.txt'] = mockfs.file({content: 'super new', mtime: new Date(1000)});
mockfs(testDir);
diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual(['file-1.txt']);
});
});
describe('diff of new files', () => {
it('should detect file additions and report them as changed files', () => {
let testDir = {
'dir1':
{'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)})}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
differ.diffTree();
testDir['dir1']['file-2.txt'] = 'new file';
mockfs(testDir);
let diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual(['file-2.txt']);
});
});
it('should detect file additions mixed with file changes', () => {
let testDir = {
'dir1': {'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)})}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
differ.diffTree();
testDir['dir1']['file-1.txt'] = 'new content';
testDir['dir1']['file-2.txt'] = 'new file';
mockfs(testDir);
let diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual(['file-1.txt', 'file-2.txt']);
});
describe('diff of removed files', () => {
it('should detect file removals and report them as removed files', () => {
let testDir = {
'dir1':
{'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)})}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
differ.diffTree();
delete testDir['dir1']['file-1.txt'];
mockfs(testDir);
let diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual([]);
expect(diffResult.removedPaths).toEqual(['file-1.txt']);
});
});
it('should detect file removals mixed with file changes and additions', () => {
let testDir = {
'dir1': {
'file-1.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)}),
'file-2.txt': mockfs.file({content: 'file-1.txt content', mtime: new Date(1000)})
}
};
mockfs(testDir);
let differ = new TreeDiffer('dir1');
differ.diffTree();
testDir['dir1']['file-1.txt'] = 'changed content';
delete testDir['dir1']['file-2.txt'];
testDir['dir1']['file-3.txt'] = 'new content';
mockfs(testDir);
let diffResult = differ.diffTree();
expect(diffResult.changedPaths).toEqual(['file-1.txt', 'file-3.txt']);
expect(diffResult.removedPaths).toEqual(['file-2.txt']);
});
});