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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/*!
Copyright 2018 Propel http://propel.site/. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Do not add imports in this file in order to be compatible with Node.
export function assertEqual(actual: unknown, expected: unknown, msg?: string) {
if (!equal(actual, expected)) {
let actualString: string;
let expectedString: string;
try {
actualString = String(actual);
} catch (e) {
actualString = "[Cannot display]";
}
try {
expectedString = String(expected);
} catch (e) {
expectedString = "[Cannot display]";
}
console.error(
"assertEqual failed. actual =",
actualString,
"expected =",
expectedString
);
if (!msg) {
msg = `actual: ${actualString} expected: ${expectedString}`;
}
throw new Error(msg);
}
}
export function assert(expr: boolean, msg = "") {
if (!expr) {
throw new Error(msg);
}
}
export function equal(c: unknown, d: unknown): boolean {
const seen = new Map();
return (function compare(a: unknown, b: unknown) {
if (Object.is(a, b)) {
return true;
}
if (a && typeof a === "object" && b && typeof b === "object") {
if (seen.get(a) === b) {
return true;
}
if (Object.keys(a || {}).length !== Object.keys(b || {}).length) {
return false;
}
const merged = { ...a, ...b };
for (const key in merged) {
type Key = keyof typeof merged;
if (!compare(a && a[key as Key], b && b[key as Key])) {
return false;
}
}
seen.set(a, b);
return true;
}
return false;
})(c, d);
}
export type TestFunction = () => void | Promise<void>;
export interface TestDefinition {
fn: TestFunction;
name: string;
}
export const exitOnFail = true;
let filterRegExp: RegExp | null;
const tests: TestDefinition[] = [];
let filtered = 0;
const ignored = 0;
const measured = 0;
// Must be called before any test() that needs to be filtered.
export function setFilter(s: string): void {
filterRegExp = new RegExp(s, "i");
}
export function test(t: TestDefinition | TestFunction): void {
const fn: TestFunction = typeof t === "function" ? t : t.fn;
const name: string = t.name;
if (!name) {
throw new Error("Test function may not be anonymous");
}
if (filter(name)) {
tests.push({ fn, name });
} else {
filtered++;
}
}
function filter(name: string): boolean {
if (filterRegExp) {
return filterRegExp.test(name);
} else {
return true;
}
}
const RESET = "\x1b[0m";
const FG_RED = "\x1b[31m";
const FG_GREEN = "\x1b[32m";
function red_failed() {
return FG_RED + "FAILED" + RESET;
}
function green_ok() {
return FG_GREEN + "ok" + RESET;
}
async function runTests() {
let passed = 0;
let failed = 0;
console.log("running", tests.length, "tests");
for (let i = 0; i < tests.length; i++) {
const { fn, name } = tests[i];
let result = green_ok();
console.log("test", name);
try {
await fn();
passed++;
} catch (e) {
result = red_failed();
console.error((e && e.stack) || e);
failed++;
if (exitOnFail) {
break;
}
}
// TODO Do this on the same line as test name is printed.
console.log("...", result);
}
// Attempting to match the output of Rust's test runner.
const result = failed > 0 ? red_failed() : green_ok();
console.log(
`\ntest result: ${result}. ${passed} passed; ${failed} failed; ` +
`${ignored} ignored; ${measured} measured; ${filtered} filtered out\n`
);
if (failed === 0) {
// All good.
} else {
// Use setTimeout to avoid the error being ignored due to unhandled
// promise rejections being swallowed.
setTimeout(() => {
throw new Error(`There were ${failed} test failures.`);
}, 0);
}
}
setTimeout(runTests, 0);
|
