refactor: Convert specs to Jest

Author: joshwiens

test/TestCases.test.js

@@ -1,3 +1,4 @@
+/* eslint-disable */
 var fs = require("fs");
 var vm = require("vm");
 var path = require("path");

test/define-fallback.test.js

@@ -0,0 +1,67 @@
+// import ExtractTextPlugin from '../src';
+// const loader = require.resolve('../src/loader');
+/* eslint-disable */
+var ExtractTextPlugin = require("../");
+var loader = require.resolve('../loader');
+
+describe('Define Fallback', () => {
+  it('accepts a fallback string', () => {
+    expect(ExtractTextPlugin.extract({
+      fallback: 'style-loader',
+      use: 'css-loader'
+    })).toEqual([
+      { loader, options: { omit: 1, remove: true } },
+      { loader: 'style-loader' },
+      { loader: 'css-loader' }
+    ]);
+  });
+
+  it('accepts a fallback string with legacy fallbackLoader option', () => {
+    expect(ExtractTextPlugin.extract({
+      fallback: 'style-loader',
+      use: 'css-loader'
+    })).toEqual([
+      { loader, options: { omit: 1, remove: true } },
+      { loader: 'style-loader' },
+      { loader: 'css-loader' }
+    ]);
+  });
+
+  it('accepts a chained fallback string', () => {
+    expect(ExtractTextPlugin.extract({
+      fallback: 'something-loader!style-loader',
+      use: 'css-loader'
+    })).toEqual([
+      { loader, options: { omit: 2, remove: true } },
+      { loader: 'something-loader' },
+      { loader: 'style-loader' },
+      { loader: 'css-loader' }
+    ]);
+  });
+
+  it('accepts a fallback object', () => {
+    expect(ExtractTextPlugin.extract({
+      fallback: { loader: 'style-loader' },
+      use: 'css-loader'
+    })).toEqual([
+      { loader, options: { omit: 1, remove: true } },
+      { loader: 'style-loader' },
+      { loader: 'css-loader' }
+    ]);
+  });
+
+  it('accepts an array of fallback objects', () => {
+    expect(ExtractTextPlugin.extract({
+      fallback: [
+        { loader: 'something-loader' },
+        { loader: 'style-loader' }
+      ],
+      use: 'css-loader'
+    })).toEqual([
+      { loader, options: { omit: 2, remove: true } },
+      { loader: 'something-loader' },
+      { loader: 'style-loader' },
+      { loader: 'css-loader' }
+    ]);
+  });
+});

test/define-loader.test.js

@@ -0,0 +1,107 @@
+// import ExtractTextPlugin from '../src';
+// const loader = require.resolve('../src/loader');
+/* eslint-disable */
+var ExtractTextPlugin = require("../");
+var loader = require.resolve('../loader');
+
+describe('specifying loader', () => {
+  it('accepts a loader string', () => {
+    expect(ExtractTextPlugin.extract('css-loader')).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader' }
+    ]);
+  });
+
+  it('accepts a chained loader string', () => {
+    expect(ExtractTextPlugin.extract(
+      'css-loader!postcss-loader!sass-loader'
+    )).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader' },
+      { loader: 'postcss-loader' },
+      { loader: 'sass-loader' }
+    ]);
+  });
+
+  it('accepts an array of loader names', () => {
+    expect(ExtractTextPlugin.extract(
+      ['css-loader', 'postcss-loader', 'sass-loader']
+    )).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader' },
+      { loader: 'postcss-loader' },
+      { loader: 'sass-loader' }
+    ]);
+  });
+
+  it('accepts a loader object', () => {
+    expect(ExtractTextPlugin.extract({ use: 'css-loader' })).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader' }
+    ]);
+  });
+
+  it('accepts an array of loader names in loader object', () => {
+    expect(ExtractTextPlugin.extract({
+      use: ['css-loader', 'postcss-loader', 'sass-loader']
+    })).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader' },
+      { loader: 'postcss-loader' },
+      { loader: 'sass-loader' }
+    ]);
+  });
+
+  it('accepts a loader object with an options object', () => {
+    expect(ExtractTextPlugin.extract(
+      { use: 'css-loader', options: { modules: true } }
+    )).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { use: 'css-loader', options: { modules: true } }
+    ]);
+  });
+
+  it('accepts a loader object with an options object in array of loaders', () => {
+    expect(ExtractTextPlugin.extract({
+      use: [
+        { loader: 'css-loader', options: { modules: true } },
+        'postcss-loader'
+      ]
+    })).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader', options: { modules: true } },
+      { loader: 'postcss-loader' }
+    ]);
+  });
+
+  it('accepts a loader object with a (legacy) query object', () => {
+    expect(ExtractTextPlugin.extract(
+      { use: 'css-loader', query: { modules: true } }
+    )).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { use: 'css-loader', query: { modules: true } }
+    ]);
+  });
+
+  it('accepts a loader object with a legacy loader field', () => {
+    expect(ExtractTextPlugin.extract(
+      { loader: 'css-loader', query: { modules: true } }
+    )).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader', query: { modules: true } }
+    ]);
+  });
+
+  it('accepts an array of loader objects', () => {
+    expect(ExtractTextPlugin.extract([
+      { loader: 'css-loader' },
+      { loader: 'postcss-loader' },
+      { loader: 'sass-loader' }
+    ])).toEqual([
+      { loader, options: { omit: 0, remove: true } },
+      { loader: 'css-loader' },
+      { loader: 'postcss-loader' },
+      { loader: 'sass-loader' }
+    ]);
+  });
+})