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denoland-deno/std/prettier/main_test.ts

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2020-01-02 15:13:47 -05:00
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";
import { test, runIfMain } from "../testing/mod.ts";
import { copy, emptyDir } from "../fs/mod.ts";
import { EOL, join } from "../path/mod.ts";
import { xrun } from "./util.ts";
const { readAll, execPath } = Deno;
const decoder = new TextDecoder();
async function run(
args: string[]
): Promise<{ stdout: string; code: number | undefined }> {
const p = xrun({ args, stdout: "piped" });
const stdout = decoder.decode(await readAll(p.stdout!));
const { code } = await p.status();
return { stdout, code };
}
const cmd = [
execPath(),
"run",
"--allow-run",
"--allow-write",
"--allow-read",
"./prettier/main.ts"
];
const testdata = join("prettier", "testdata");
function normalizeOutput(output: string): string {
return output
.replace(/\r/g, "")
.replace(/\\/g, "/")
.trim()
.split("\n")
.sort()
.join("\n");
}
function normalizeSourceCode(source: string): string {
return source.replace(/\r/g, "");
}
test(async function testPrettierCheckAndFormatFiles(): Promise<void> {
const tempDir = await Deno.makeTempDir();
await copy(testdata, tempDir, { overwrite: true });
const files = [
join(tempDir, "0.ts"),
join(tempDir, "1.js"),
join(tempDir, "2.ts"),
join(tempDir, "3.jsx"),
join(tempDir, "4.tsx")
];
let p = await run([...cmd, "--check", ...files]);
assertEquals(p.code, 1);
assertEquals(normalizeOutput(p.stdout), "Some files are not formatted");
p = await run([...cmd, "--write", ...files]);
assertEquals(p.code, 0);
assertEquals(
normalizeOutput(p.stdout),
normalizeOutput(`Formatting ${tempDir}/0.ts
Formatting ${tempDir}/1.js
Formatting ${tempDir}/3.jsx
Formatting ${tempDir}/4.tsx
`)
);
p = await run([...cmd, "--check", ...files]);
assertEquals(p.code, 0);
assertEquals(normalizeOutput(p.stdout), "Every file is formatted");
emptyDir(tempDir);
});
test(async function testPrettierCheckAndFormatDirs(): Promise<void> {
const tempDir = await Deno.makeTempDir();
await copy(testdata, tempDir, { overwrite: true });
const dirs = [join(tempDir, "foo"), join(tempDir, "bar")];
let p = await run([...cmd, "--check", ...dirs]);
assertEquals(p.code, 1);
assertEquals(normalizeOutput(p.stdout), "Some files are not formatted");
p = await run([...cmd, "--write", ...dirs]);
assertEquals(p.code, 0);
assertEquals(
normalizeOutput(p.stdout),
normalizeOutput(`Formatting ${tempDir}/bar/0.ts
Formatting ${tempDir}/bar/1.js
Formatting ${tempDir}/foo/0.ts
Formatting ${tempDir}/foo/1.js`)
);
p = await run([...cmd, "--check", ...dirs]);
assertEquals(p.code, 0);
assertEquals(normalizeOutput(p.stdout), "Every file is formatted");
emptyDir(tempDir);
});
test(async function testPrettierOptions(): Promise<void> {
const tempDir = await Deno.makeTempDir();
await copy(testdata, tempDir, { overwrite: true });
const file0 = join(tempDir, "opts", "0.ts");
const file1 = join(tempDir, "opts", "1.ts");
const file2 = join(tempDir, "opts", "2.ts");
const file3 = join(tempDir, "opts", "3.md");
const getSourceCode = async (f: string): Promise<string> =>
decoder.decode(await Deno.readFile(f));
await run([...cmd, "--no-semi", "--write", file0]);
assertEquals(
normalizeSourceCode(await getSourceCode(file0)),
`console.log(0)
console.log([function foo() {}, function baz() {}, a => {}])
`
);
await run([
...cmd,
"--print-width",
"30",
"--tab-width",
"4",
"--write",
file0
]);
assertEquals(
normalizeSourceCode(await getSourceCode(file0)),
`console.log(0);
console.log([
function foo() {},
function baz() {},
a => {}
]);
`
);
await run([...cmd, "--print-width", "30", "--use-tabs", "--write", file0]);
assertEquals(
normalizeSourceCode(await getSourceCode(file0)),
`console.log(0);
console.log([
function foo() {},
function baz() {},
a => {}
]);
`
);
await run([...cmd, "--single-quote", "--write", file1]);
assertEquals(
normalizeSourceCode(await getSourceCode(file1)),
`console.log('1');
`
);
await run([
...cmd,
"--print-width",
"30",
"--trailing-comma",
"all",
"--write",
file0
]);
assertEquals(
normalizeSourceCode(await getSourceCode(file0)),
`console.log(0);
console.log([
function foo() {},
function baz() {},
a => {},
]);
`
);
await run([...cmd, "--no-bracket-spacing", "--write", file2]);
assertEquals(
normalizeSourceCode(await getSourceCode(file2)),
`console.log({a: 1});
`
);
await run([...cmd, "--arrow-parens", "always", "--write", file0]);
assertEquals(
normalizeSourceCode(await getSourceCode(file0)),
`console.log(0);
console.log([function foo() {}, function baz() {}, (a) => {}]);
`
);
await run([...cmd, "--prose-wrap", "always", "--write", file3]);
assertEquals(
normalizeSourceCode(await getSourceCode(file3)),
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, " +
"sed do eiusmod tempor" +
"\nincididunt ut labore et dolore magna aliqua.\n"
);
await run([...cmd, "--end-of-line", "crlf", "--write", file2]);
assertEquals(await getSourceCode(file2), "console.log({ a: 1 });\r\n");
emptyDir(tempDir);
});
test(async function testPrettierPrintToStdout(): Promise<void> {
const tempDir = await Deno.makeTempDir();
await copy(testdata, tempDir, { overwrite: true });
const file0 = join(tempDir, "0.ts");
const file1 = join(tempDir, "formatted.ts");
const getSourceCode = async (f: string): Promise<string> =>
decoder.decode(await Deno.readFile(f));
const { stdout } = await run([...cmd, file0]);
// The source file will not change without `--write` flags.
assertEquals(
await getSourceCode(file0),
`console.log (0)
`
);
// The output should be formatted code.
assertEquals(
stdout,
`console.log(0);
`
);
const { stdout: formattedCode } = await run([...cmd, file1]);
// The source file will not change without `--write` flags.
assertEquals(
await getSourceCode(file1),
`console.log(0);
`
);
// The output will be formatted code even it is the same as the source file's
// content.
assertEquals(
formattedCode,
`console.log(0);
`
);
emptyDir(tempDir);
});
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// TODO(bartlomieju): reenable after landing rusty_v8 branch
// crashing on Windows
/*
test(async function testPrettierReadFromStdin(): Promise<void> {
interface TestCase {
stdin: string;
stdout: string;
stderr: string;
code: number;
success: boolean;
parser?: string;
}
async function readFromStdinAssertion(
stdin: string,
expectedStdout: string,
expectedStderr: string,
expectedCode: number,
expectedSuccess: boolean,
parser?: string
): Promise<void> {
const inputCode = stdin;
const p1 = Deno.run({
args: [execPath(), "./prettier/testdata/echox.ts", `${inputCode}`],
stdout: "piped"
});
const p2 = Deno.run({
args: [
execPath(),
"run",
"./prettier/main.ts",
"--stdin",
...(parser ? ["--stdin-parser", parser] : [])
],
stdin: "piped",
stdout: "piped",
stderr: "piped"
});
const n = await Deno.copy(p2.stdin!, p1.stdout!);
assertEquals(n, new TextEncoder().encode(stdin).length);
const status1 = await p1.status();
assertEquals(status1.code, 0);
assertEquals(status1.success, true);
p2.stdin!.close();
const status2 = await p2.status();
assertEquals(status2.code, expectedCode);
assertEquals(status2.success, expectedSuccess);
const decoder = new TextDecoder("utf-8");
assertEquals(
decoder.decode(await Deno.readAll(p2.stdout!)),
expectedStdout
);
assertEquals(
decoder.decode(await Deno.readAll(p2.stderr!)).split(EOL)[0],
expectedStderr
);
p2.close();
p1.close();
}
const testCases: TestCase[] = [
{
stdin: `console.log("abc" )`,
stdout: `console.log("abc");\n`,
stderr: ``,
code: 0,
success: true
},
{
stdin: `console.log("abc" )`,
stdout: `console.log("abc");\n`,
stderr: ``,
code: 0,
success: true,
parser: "babel"
},
{
stdin: `{\"a\":\"b\"}`,
stdout: `{ "a": "b" }\n`,
stderr: ``,
code: 0,
success: true,
parser: "json"
},
{
stdin: `## test`,
stdout: `## test\n`,
stderr: ``,
code: 0,
success: true,
parser: "markdown"
},
{
stdin: `invalid typescript code##!!@@`,
stdout: ``,
stderr: `SyntaxError: ';' expected. (1:9)`,
code: 1,
success: false
},
{
stdin: `console.log("foo");`,
stdout: ``,
stderr:
'Error: Couldn\'t resolve parser "invalid_parser". ' +
"Parsers must be explicitly added to the standalone bundle.",
code: 1,
success: false,
parser: "invalid_parser"
}
];
for (const t of testCases) {
await readFromStdinAssertion(
t.stdin,
t.stdout,
t.stderr,
t.code,
t.success,
t.parser
);
}
});
2020-01-05 09:19:29 -05:00
*/
test(async function testPrettierWithAutoConfig(): Promise<void> {
const configs = [
"config_file_json",
"config_file_toml",
"config_file_js",
"config_file_ts",
"config_file_yaml",
"config_file_yml"
];
for (const configName of configs) {
const cwd = join(testdata, configName);
const prettierFile = join(Deno.cwd(), "prettier", "main.ts");
const { stdout, stderr } = Deno.run({
args: [
execPath(),
"run",
"--allow-read",
"--allow-env",
prettierFile,
"../5.ts",
"--config",
"auto"
],
stdout: "piped",
stderr: "piped",
cwd
});
const output = decoder.decode(await Deno.readAll(stdout));
const errMsg = decoder.decode(await Deno.readAll(stderr));
assertEquals(
errMsg
.split(EOL)
.filter((line: string) => line.indexOf("Compile") !== 0)
.join(EOL),
""
);
assertEquals(output, `console.log('0');\n`);
}
});
test(async function testPrettierWithSpecifiedConfig(): Promise<void> {
interface Config {
dir: string;
name: string;
}
const configs: Config[] = [
{
dir: "config_file_json",
name: ".prettierrc.json"
},
{
dir: "config_file_toml",
name: ".prettierrc.toml"
},
{
dir: "config_file_js",
name: ".prettierrc.js"
},
{
dir: "config_file_ts",
name: ".prettierrc.ts"
},
{
dir: "config_file_yaml",
name: ".prettierrc.yaml"
},
{
dir: "config_file_yml",
name: ".prettierrc.yml"
}
];
for (const config of configs) {
const cwd = join(testdata, config.dir);
const prettierFile = join(Deno.cwd(), "prettier", "main.ts");
const { stdout, stderr } = Deno.run({
args: [
execPath(),
"run",
"--allow-read",
"--allow-env",
prettierFile,
"../5.ts",
"--config",
config.name
],
stdout: "piped",
stderr: "piped",
cwd
});
const output = decoder.decode(await Deno.readAll(stdout));
const errMsg = decoder.decode(await Deno.readAll(stderr));
assertEquals(
errMsg
.split(EOL)
.filter((line: string) => line.indexOf("Compile") !== 0)
.join(EOL),
""
);
assertEquals(output, `console.log('0');\n`);
}
});
test(async function testPrettierWithAutoIgnore(): Promise<void> {
// only format typescript file
const cwd = join(testdata, "ignore_file");
const prettierFile = join(Deno.cwd(), "prettier", "main.ts");
const { stdout, stderr } = Deno.run({
args: [
execPath(),
"run",
"--allow-read",
"--allow-env",
prettierFile,
"**/*",
"--ignore-path",
"auto"
],
stdout: "piped",
stderr: "piped",
cwd
});
assertEquals(decoder.decode(await Deno.readAll(stderr)), "");
assertEquals(
decoder.decode(await Deno.readAll(stdout)),
`console.log("typescript");\nconsole.log("typescript1");\n`
);
});
test(async function testPrettierWithSpecifiedIgnore(): Promise<void> {
// only format javascript file
const cwd = join(testdata, "ignore_file");
const prettierFile = join(Deno.cwd(), "prettier", "main.ts");
const { stdout, stderr } = Deno.run({
args: [
execPath(),
"run",
"--allow-read",
"--allow-env",
prettierFile,
"**/*",
"--ignore-path",
"typescript.prettierignore"
],
stdout: "piped",
stderr: "piped",
cwd
});
assertEquals(decoder.decode(await Deno.readAll(stderr)), "");
assertEquals(
decoder.decode(await Deno.readAll(stdout)),
`console.log("javascript");\nconsole.log("javascript1");\n`
);
});
runIfMain(import.meta);