feat: introduced lingui-codemod CLI!

Author: Sergio

bin/__tests__/lingui-codemod.test.ts

@@ -0,0 +1,180 @@
+let gitStatusReturnValue;
+let execaReturnValue;
+
+jest.setMock('execa', {
+  sync: () => execaReturnValue
+});
+
+jest.setMock('is-git-clean', {
+  sync: () => {
+    if (typeof gitStatusReturnValue === 'boolean') {
+      return gitStatusReturnValue;
+    }
+    throw gitStatusReturnValue;
+  }
+});
+
+import fs from "fs";
+import path from "path";
+import {
+  runTransform,
+  jscodeshiftExecutable,
+  transformerDirectory,
+  checkGitStatus
+} from '../cli';
+
+describe('check-git-status', () => {
+  it('does not exit and output any logs when git repo is clean', () => {
+    gitStatusReturnValue = true;
+    console.log = jest.fn();
+    // @ts-ignore
+    process.exit = jest.fn();
+    checkGitStatus();
+    expect(console.log).not.toBeCalled();
+    expect(process.exit).not.toBeCalled();
+  });
+
+  it('does not exit and output any logs when not a git repo', () => {
+    const err = new Error();
+    // @ts-ignore
+    err.stderr = 'Not a git repository';
+    gitStatusReturnValue = err;
+    console.log = jest.fn();
+    // @ts-ignore
+    process.exit = jest.fn();
+    checkGitStatus();
+    expect(console.log).not.toBeCalled();
+    expect(process.exit).not.toBeCalled();
+  });
+
+  it('exits and output logs when git repo is dirty', () => {
+    gitStatusReturnValue = false;
+    console.log = jest.fn();
+    // @ts-ignore
+    process.exit = jest.fn();
+    checkGitStatus();
+    expect(console.log).toBeCalled();
+    expect(process.exit).toBeCalled();
+  });
+
+  it('exits and output logs when git detection fail', () => {
+    gitStatusReturnValue = new Error('bum');
+    console.log = jest.fn();
+    // @ts-ignore
+    process.exit = jest.fn();
+    checkGitStatus();
+    expect(console.log).toBeCalled();
+    expect(process.exit).toBeCalled();
+  });
+
+  it('does not exit when git repo is dirty and force flag is given', () => {
+    gitStatusReturnValue = false;
+    console.log = jest.fn();
+    // @ts-ignore
+    process.exit = jest.fn();
+    checkGitStatus(true);
+    expect(console.log).toBeCalledWith(
+      'WARNING: Git directory is not clean. Forcibly continuing.'
+    );
+    expect(process.exit).not.toBeCalled();
+  });
+});
+
+describe('runTransform', () => {
+  it('finds transformer directory', () => {
+    fs.lstatSync(transformerDirectory);
+  });
+
+  it('finds jscodeshift executable', () => {
+    fs.lstatSync(jscodeshiftExecutable);
+  });
+
+  it('runs jscodeshift for the given transformer', () => {
+    execaReturnValue = { error: null };
+    console.log = jest.fn();
+    runTransform({
+      files: 'src',
+      flags: {},
+      parser: 'flow',
+      transformer: 'rename-unsafe-xyz'
+    });
+    expect(console.log).toBeCalledWith(
+      // eslint-disable-next-line max-len
+      `Executing command: jscodeshift --verbose=2 --ignore-pattern=**/node_modules/** --parser flow --extensions=jsx,js --transform ${path.join(
+        transformerDirectory,
+        'rename-unsafe-xyz.js'
+      )} src`
+    );
+  });
+
+  it('supports jscodeshift flags', () => {
+    execaReturnValue = { error: null };
+    console.log = jest.fn();
+    runTransform({
+      files: 'folder',
+      flags: { dry: true },
+      parser: 'flow',
+      transformer: 'v2-to-v3'
+    });
+    expect(console.log).toBeCalledWith(
+      // eslint-disable-next-line max-len
+      `Executing command: jscodeshift --dry --verbose=2 --ignore-pattern=**/node_modules/** --parser flow --extensions=jsx,js --transform ${path.join(
+        transformerDirectory,
+        'v2-to-v3.js'
+      )} folder`
+    );
+  });
+
+  it('supports typescript parser', () => {
+    execaReturnValue = { error: null };
+    console.log = jest.fn();
+    runTransform({
+      files: 'folder',
+      flags: { dry: true },
+      parser: 'tsx',
+      transformer: 'rename-unsafe-lifecycles'
+    });
+    expect(console.log).toBeCalledWith(
+      // eslint-disable-next-line max-len
+      `Executing command: jscodeshift --dry --verbose=2 --ignore-pattern=**/node_modules/** --parser tsx --extensions=tsx,ts,jsx,js --transform ${path.join(
+        transformerDirectory,
+        'rename-unsafe-lifecycles.js'
+      )} folder`
+    );
+  });
+
+  it('supports jscodeshift custom arguments', () => {
+    execaReturnValue = { error: null };
+    console.log = jest.fn();
+    runTransform({
+      files: 'folder',
+      flags: {
+        dry: true,
+        jscodeshift: 'verbose=2 --printOptions=\'{"quote":"double"}\''
+      },
+      parser: 'babel',
+      transformer: 'v2-to-v3'
+    });
+    expect(console.log).toBeCalledWith(
+      // eslint-disable-next-line max-len
+      `Executing command: jscodeshift --dry --verbose=2 --ignore-pattern=**/node_modules/** --parser babel --extensions=jsx,js --transform ${path.join(
+        transformerDirectory,
+        'v2-to-v3.js'
+      )} verbose=2 --printOptions='{"quote":"double"}' folder`
+    );
+  });
+
+  it('rethrows jscodeshift errors', () => {
+    const transformerError = new Error('bum');
+    execaReturnValue = { error: transformerError };
+    console.log = jest.fn();
+    expect(() => {
+      runTransform({
+        files: 'src',
+        flags: {},
+        parser: 'flow',
+        transformers: ['tape']
+      });
+    }).toThrowError(transformerError);
+  });
+});