104 lines
2.6 KiB
JavaScript
104 lines
2.6 KiB
JavaScript
"use strict";
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const path = require("path");
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const fs = require("fs");
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function runPrettier(dir, args, options) {
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let status;
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let stdout = "";
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let stderr = "";
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const spiedProcessExit = jest.spyOn(process, "exit");
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spiedProcessExit.mockImplementation(exitCode => {
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if (status === undefined) {
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status = exitCode || 0;
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}
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});
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const spiedStdoutWrite = jest.spyOn(process.stdout, "write");
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spiedStdoutWrite.mockImplementation(text => {
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if (status === undefined) {
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stdout += text;
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}
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});
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const spiedStderrWrite = jest.spyOn(process.stderr, "write");
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spiedStderrWrite.mockImplementation(text => {
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if (status === undefined) {
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stderr += text;
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}
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});
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const spiedConsoleLog = jest.spyOn(console, "log");
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spiedConsoleLog.mockImplementation(text => {
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if (status === undefined) {
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stdout += text + "\n";
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}
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});
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const spiedConsoleWarn = jest.spyOn(console, "warn");
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spiedConsoleWarn.mockImplementation(text => {
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if (status === undefined) {
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stderr += text + "\n";
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}
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});
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const spiedConsoleError = jest.spyOn(console, "error");
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spiedConsoleError.mockImplementation(text => {
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if (status === undefined) {
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stderr += text + "\n";
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}
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});
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const write = [];
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const spiedFsWriteFileSync = jest.spyOn(fs, "writeFileSync");
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spiedFsWriteFileSync.mockImplementation((filename, content) => {
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write.push({ filename, content });
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});
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const originalCwd = process.cwd();
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const originalIsTTY = process.stdin.isTTY;
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const originalArgv = process.argv;
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const originalExitCode = process.exitCode;
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process.chdir(normalizeDir(dir));
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process.stdin.isTTY = false;
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process.argv = ["path/to/node", "path/to/prettier/bin"].concat(args || []);
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jest.resetModules();
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jest.setMock("get-stream", () => ({
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then: handler => handler((options && options.input) || "")
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}));
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try {
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require("../bin/prettier");
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status = status || process.exitCode || 0;
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} catch (error) {
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stderr += error.message;
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status = 1;
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} finally {
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process.exitCode = originalExitCode;
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process.stdin.isTTY = originalIsTTY;
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process.argv = originalArgv;
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process.chdir(originalCwd);
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spiedProcessExit.mockRestore();
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spiedStdoutWrite.mockRestore();
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spiedStderrWrite.mockRestore();
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spiedConsoleLog.mockRestore();
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spiedConsoleWarn.mockRestore();
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spiedConsoleError.mockRestore();
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spiedFsWriteFileSync.mockRestore();
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}
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return { status, stdout, stderr, write };
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}
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function normalizeDir(dir) {
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const isRelative = dir[0] !== "/";
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return isRelative ? path.resolve(__dirname, dir) : dir;
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}
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module.exports = runPrettier;
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