angular-cn/tools/size-tracking/file_size_compare_spec.ts

128 lines
3.5 KiB
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {compareFileSizeData} from './file_size_compare';
describe('file size compare', () => {
it('should report if size entry differ by more than the specified max percentage diff', () => {
const diffs = compareFileSizeData(
{
unmapped: 0,
files: {
size: 50,
'a.ts': 50,
}
},
{
unmapped: 0,
files: {
size: 75,
'a.ts': 75,
}
},
{maxPercentageDiff: 0, maxByteDiff: 25});
expect(diffs.length).toBe(2);
expect(diffs[0].filePath).toBe('/');
expect(diffs[0].message).toMatch(/40.00% from the expected size/);
expect(diffs[1].filePath).toBe('/a.ts');
expect(diffs[1].message).toMatch(/40.00% from the expected size/);
});
it('should report if size entry differ by more than the specified max byte diff', () => {
const diffs = compareFileSizeData(
{
unmapped: 0,
files: {
size: 1000,
'a.ts': 1000,
}
},
{
unmapped: 0,
files: {
size: 1055,
'a.ts': 1055,
}
},
{maxPercentageDiff: 6, maxByteDiff: 50});
expect(diffs.length).toBe(2);
expect(diffs[0].filePath).toBe('/');
expect(diffs[0].message).toMatch(/55B from the expected size/);
expect(diffs[1].filePath).toBe('/a.ts');
expect(diffs[1].message).toMatch(/55B from the expected size/);
});
it('should report if unmapped bytes differ by more than specified threshold', () => {
const diffs = compareFileSizeData(
{unmapped: 1000, files: {size: 0}}, {unmapped: 1055, files: {size: 0}},
{maxPercentageDiff: 6, maxByteDiff: 50});
expect(diffs.length).toBe(1);
expect(diffs[0].filePath).toBe('<unmapped>');
expect(diffs[0].message).toMatch(/55B from the expected size/);
});
it('should not report if size percentage difference does not exceed threshold', () => {
const diffs = compareFileSizeData(
{
unmapped: 0,
files: {
size: 50,
'a.ts': 50,
}
},
{
unmapped: 0,
files: {
size: 75,
'a.ts': 75,
}
},
{maxPercentageDiff: 40, maxByteDiff: 25});
expect(diffs.length).toBe(0);
});
it('should report if expected file size data misses a file size entry', () => {
const diffs = compareFileSizeData(
{
unmapped: 0,
files: {
size: 101,
'a.ts': 100,
'b.ts': 1,
}
},
{unmapped: 0, files: {size: 100, 'a.ts': 100}}, {maxByteDiff: 10, maxPercentageDiff: 1});
expect(diffs.length).toBe(1);
expect(diffs[0].filePath).toBe('/b.ts');
expect(diffs[0].message).toMatch(/Unexpected file.*not part of golden./);
});
it('should report if actual file size data misses an expected file size entry', () => {
const diffs = compareFileSizeData(
{
unmapped: 0,
files: {
size: 100,
'a.ts': 100,
}
},
{unmapped: 0, files: {size: 101, 'a.ts': 100, 'b.ts': 1}},
{maxByteDiff: 10, maxPercentageDiff: 1});
expect(diffs.length).toBe(1);
expect(diffs[0].filePath).toBe('/b.ts');
expect(diffs[0].message).toMatch(/Expected file.*not included./);
});
});