Get the compiled source map object from within a test

Author: npetruzzelli

test/sourceMap-option.test.js

@@ -15,6 +15,26 @@ describe('sourceMap option', () => {
       const { modules } = stats.toJson();
       const module = modules.find((m) => m.id === testId);
 
+      /**
+       * Get the actual source map from the OriginalSource object.
+       * @see {@link https://github.com/webpack/webpack-sources}
+       * @todo check that the source map exists
+       * @todo check that the source map has valid and expected property values.
+       */
+      const compilationModules = stats.compilation.modules;
+      const compilationModule = compilationModules.find((m) => m.id === testId);
+      const moduleOriginalSource = compilationModule._source; // eslint-disable-line no-underscore-dangle
+      const moduleSourceMap = moduleOriginalSource.map();
+
+      /**
+       * @todo remove `console.log` statments
+       */
+      /* eslint-disable no-console */
+      console.log('==========================================================');
+      console.log(moduleSourceMap);
+      console.log('==========================================================');
+      /* eslint-enable no-console */
+
       expect(normalizeSourceMap(evaluated(module.source))).toMatchSnapshot(
         'module (evaluated)'
       );