forked from prettier/prettier
/
run-prettier.js
215 lines (186 loc) · 5.83 KB
/
run-prettier.js
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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
"use strict";
const fs = require("fs");
const path = require("path");
const stripAnsi = require("strip-ansi");
const { prettierCli, thirdParty } = require("./env.js");
async function run(dir, args, options) {
args = Array.isArray(args) ? args : [args];
let status;
let stdout = "";
let stderr = "";
jest.spyOn(process, "exit").mockImplementation((exitCode) => {
if (status === undefined) {
status = exitCode || 0;
}
});
jest
.spyOn(process.stdout, "write")
.mockImplementation((text) => appendStdout(text));
jest
.spyOn(process.stderr, "write")
.mockImplementation((text) => appendStderr(text));
jest
.spyOn(console, "log")
.mockImplementation((text) => appendStdout(text + "\n"));
jest
.spyOn(console, "warn")
.mockImplementation((text) => appendStderr(text + "\n"));
jest
.spyOn(console, "error")
.mockImplementation((text) => appendStderr(text + "\n"));
jest.spyOn(Date, "now").mockImplementation(() => 0);
const write = [];
jest
.spyOn(fs.promises, "writeFile")
// eslint-disable-next-line require-await
.mockImplementation(async (filename, content) => {
write.push({ filename, content });
});
/*
A fake non-existing directory to test plugin search won't crash.
See:
- `isDirectory` function in `src/common/load-plugins.js`
- Test file `./__tests__/plugin-virtual-directory.js`
- Pull request #5819
*/
const originalStatSync = fs.statSync;
jest
.spyOn(fs, "statSync")
.mockImplementation((filename) =>
originalStatSync(
path.basename(filename) === "virtualDirectory" ? __filename : filename
)
);
const originalCwd = process.cwd();
const originalArgv = process.argv;
const originalExitCode = process.exitCode;
const originalStdinIsTTY = process.stdin.isTTY;
const originalStdoutIsTTY = process.stdout.isTTY;
process.chdir(normalizeDir(dir));
process.stdin.isTTY = Boolean(options.isTTY);
process.stdout.isTTY = Boolean(options.stdoutIsTTY);
process.argv = ["path/to/node", "path/to/prettier/bin", ...args];
jest.resetModules();
// We cannot use `jest.setMock("get-stream", impl)` here, because in the
// production build everything is bundled into one file so there is no
// "get-stream" module to mock.
jest
.spyOn(require(thirdParty), "getStdin")
// eslint-disable-next-line require-await
.mockImplementation(async () => options.input || "");
jest
.spyOn(require(thirdParty), "isCI")
.mockImplementation(() => Boolean(options.ci));
jest
.spyOn(require(thirdParty), "cosmiconfig")
.mockImplementation((moduleName, options) =>
require("cosmiconfig").cosmiconfig(moduleName, {
...options,
stopDir: path.join(__dirname, "cli"),
})
);
jest
.spyOn(require(thirdParty), "cosmiconfigSync")
.mockImplementation((moduleName, options) =>
require("cosmiconfig").cosmiconfigSync(moduleName, {
...options,
stopDir: path.join(__dirname, "cli"),
})
);
jest
.spyOn(require(thirdParty), "findParentDir")
.mockImplementation(() => process.cwd());
try {
await require(prettierCli);
status = (status === undefined ? process.exitCode : status) || 0;
} catch (error) {
status = 1;
stderr += error.message;
} finally {
process.chdir(originalCwd);
process.argv = originalArgv;
process.exitCode = originalExitCode;
process.stdin.isTTY = originalStdinIsTTY;
process.stdout.isTTY = originalStdoutIsTTY;
jest.restoreAllMocks();
}
return { status, stdout, stderr, write };
function appendStdout(text) {
if (status === undefined) {
stdout += text;
}
}
function appendStderr(text) {
if (status === undefined) {
stderr += text;
}
}
}
let hasRunningCli = false;
function runPrettier(dir, args = [], options = {}) {
let promise;
const getters = {
get status() {
return runCli().then(({ status }) => status);
},
get stdout() {
return runCli().then(({ stdout }) => stdout);
},
get stderr() {
return runCli().then(({ stderr }) => stderr);
},
get write() {
return runCli().then(({ write }) => write);
},
test: testResult,
then(onFulfilled, onRejected) {
return runCli().then(onFulfilled, onRejected);
},
};
return getters;
function runCli() {
if (hasRunningCli) {
throw new Error("Please wait for previous CLI to exit.");
}
if (!promise) {
hasRunningCli = true;
promise = run(dir, args, options).finally(() => {
hasRunningCli = false;
});
}
return promise;
}
function testResult(testOptions) {
for (const name of ["status", "stdout", "stderr", "write"]) {
test(`${options.title || ""}(${name})`, async () => {
const result = await runCli();
const value =
// \r is trimmed from jest snapshots by default;
// manually replacing this character with /*CR*/ to test its true presence
// If ignoreLineEndings is specified, \r is simply deleted instead
typeof result[name] === "string"
? options.ignoreLineEndings
? stripAnsi(result[name]).replace(/\r/g, "")
: stripAnsi(result[name]).replace(/\r/g, "/*CR*/")
: result[name];
if (name in testOptions) {
if (name === "status" && testOptions[name] === "non-zero") {
expect(value).not.toBe(0);
} else if (typeof testOptions[name] === "function") {
testOptions[name](value);
} else {
expect(value).toEqual(testOptions[name]);
}
} else {
expect(value).toMatchSnapshot();
}
});
}
return getters;
}
}
function normalizeDir(dir) {
const isRelative = dir[0] !== "/";
return isRelative ? path.resolve(__dirname, dir) : dir;
}
module.exports = runPrettier;