/
toThrowErrorMatchingInlineSnapshot.test.ts
106 lines (94 loc) · 3.25 KB
/
toThrowErrorMatchingInlineSnapshot.test.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import * as path from 'path';
import * as fs from 'graceful-fs';
import {wrap} from 'jest-snapshot-serializer-raw';
import {cleanup, makeTemplate, writeFiles} from '../Utils';
import runJest from '../runJest';
const DIR = path.resolve(
__dirname,
'../to-throw-error-matching-inline-snapshot',
);
const TESTS_DIR = path.resolve(DIR, '__tests__');
const readFile = (filename: string) =>
fs.readFileSync(path.join(TESTS_DIR, filename), 'utf8');
beforeEach(() => cleanup(TESTS_DIR));
afterAll(() => cleanup(TESTS_DIR));
test('works fine when function throws error', () => {
const filename = 'works-fine-when-function-throws-error.test.js';
const template = makeTemplate(`
test('works fine when function throws error', () => {
expect(() => {
throw new Error('apple');
})
.toThrowErrorMatchingInlineSnapshot();
});
`);
{
writeFiles(TESTS_DIR, {[filename]: template()});
const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false', filename]);
const fileAfter = readFile(filename);
expect(stderr).toMatch('1 snapshot written from 1 test suite.');
expect(wrap(fileAfter)).toMatchSnapshot('initial write');
expect(exitCode).toBe(0);
}
});
test('updates existing snapshot', () => {
const filename = 'updates-existing-snapshot.test.js';
const template = makeTemplate(`
test('updates existing snapshot', () => {
expect(() => {
throw new Error('apple');
})
.toThrowErrorMatchingInlineSnapshot(\`"banana"\`);
});
`);
{
writeFiles(TESTS_DIR, {[filename]: template()});
const {stderr, exitCode} = runJest(DIR, [
'-w=1',
'--ci=false',
filename,
'-u',
]);
const fileAfter = readFile(filename);
expect(stderr).toMatch('1 snapshot updated from 1 test suite.');
expect(wrap(fileAfter)).toMatchSnapshot('updated snapshot');
expect(exitCode).toBe(0);
}
});
test('cannot be used with .not', () => {
const filename = 'cannot-be-used-with-not.test.js';
const template = makeTemplate(`
test('cannot be used with .not', () => {
expect(() => { throw new Error('apple'); })
.not
.toThrowErrorMatchingInlineSnapshot();
});
`);
{
writeFiles(TESTS_DIR, {[filename]: template()});
const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false', filename]);
expect(stderr).toMatch('Snapshot matchers cannot be used with not');
expect(exitCode).toBe(1);
}
});
test('should support rejecting promises', () => {
const filename = 'should-support-rejecting-promises.test.js';
const template = makeTemplate(`
test('should support rejecting promises', async () => {
await expect(Promise.reject(new Error('octopus')))
.rejects.toThrowErrorMatchingInlineSnapshot();
});
`);
writeFiles(TESTS_DIR, {[filename]: template()});
const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false', filename]);
const fileAfter = readFile(filename);
expect(stderr).toMatch('1 snapshot written from 1 test suite.');
expect(wrap(fileAfter)).toMatchSnapshot();
expect(exitCode).toBe(0);
});