Move test support to dedicated file.

Author: Robert Jackson

src/index.js

@@ -1,66 +1,7 @@
 'use strict';
 
-/* global it, describe */
-
-const { runInlineTest } = require('jscodeshift/dist/testUtils');
-const fs = require('fs-extra');
-const path = require('path');
-
-function transformDetails(options) {
-  let root = process.cwd() + `/transforms/${options.name}/`;
-
-  return {
-    name: options.name,
-    root,
-    transformPath: root + 'index.js',
-    fixtureDir: root + '__testfixtures__/',
-  };
-}
-
-function jscodeshiftTest(options) {
-  let details = transformDetails(options);
-
-  let transform = require(details.transformPath);
-
-  describe(details.name, function() {
-    fs.readdirSync(details.fixtureDir)
-      .filter(filename => /\.input$/.test(path.basename(filename, path.extname(filename))))
-      .forEach(filename => {
-        let extension = path.extname(filename);
-        let testName = filename.replace(`.input${extension}`, '');
-        let inputPath = path.join(details.fixtureDir, `${testName}.input${extension}`);
-        let outputPath = path.join(details.fixtureDir, `${testName}.output${extension}`);
-
-        describe(testName, function() {
-          it('transforms correctly', function() {
-            runInlineTest(
-              transform,
-              {},
-              { source: fs.readFileSync(inputPath, 'utf8') },
-              fs.readFileSync(outputPath, 'utf8')
-            );
-          });
-
-          it('is idempotent', function() {
-            runInlineTest(
-              transform,
-              {},
-              { source: fs.readFileSync(outputPath, 'utf8') },
-              fs.readFileSync(outputPath, 'utf8')
-            );
-          });
-        });
-      });
-  });
-}
-
-function runTransformTest(options) {
-  switch (options.type) {
-    case 'jscodeshift':
-      return jscodeshiftTest(options);
-  }
-}
+const TestSupport = require('./test-support');
 
 module.exports = {
-  runTransformTest,
+  runTransformTest: TestSupport.runTransformTest,
 };

src/test-support.js

@@ -0,0 +1,66 @@
+'use strict';
+
+/* global it, describe */
+
+const { runInlineTest } = require('jscodeshift/dist/testUtils');
+const fs = require('fs-extra');
+const path = require('path');
+
+function transformDetails(options) {
+  let root = process.cwd() + `/transforms/${options.name}/`;
+
+  return {
+    name: options.name,
+    root,
+    transformPath: root + 'index.js',
+    fixtureDir: root + '__testfixtures__/',
+  };
+}
+
+function jscodeshiftTest(options) {
+  let details = transformDetails(options);
+
+  let transform = require(details.transformPath);
+
+  describe(details.name, function() {
+    fs.readdirSync(details.fixtureDir)
+      .filter(filename => /\.input$/.test(path.basename(filename, path.extname(filename))))
+      .forEach(filename => {
+        let extension = path.extname(filename);
+        let testName = filename.replace(`.input${extension}`, '');
+        let inputPath = path.join(details.fixtureDir, `${testName}.input${extension}`);
+        let outputPath = path.join(details.fixtureDir, `${testName}.output${extension}`);
+
+        describe(testName, function() {
+          it('transforms correctly', function() {
+            runInlineTest(
+              transform,
+              {},
+              { source: fs.readFileSync(inputPath, 'utf8') },
+              fs.readFileSync(outputPath, 'utf8')
+            );
+          });
+
+          it('is idempotent', function() {
+            runInlineTest(
+              transform,
+              {},
+              { source: fs.readFileSync(outputPath, 'utf8') },
+              fs.readFileSync(outputPath, 'utf8')
+            );
+          });
+        });
+      });
+  });
+}
+
+function runTransformTest(options) {
+  switch (options.type) {
+    case 'jscodeshift':
+      return jscodeshiftTest(options);
+  }
+}
+
+module.exports = {
+  runTransformTest,
+};