Single unit test for a single library.

pkg/docgen/test/single_library_test.dart

+library single_library_test;
+
+import 'dart:io'; 
+
+import 'package:unittest/unittest.dart';
+
+import '../lib/docgen.dart';
+import '../../../sdk/lib/_internal/compiler/implementation/filenames.dart';
+
+main() {
+  group('Generate docs for', () {
+    test('one simple file.', () {
+      // TODO(janicejl): Instead of creating a new file, should use an in-memory
+      // file for creating the mirrorSystem. Example of the util function in 
+      // sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.dart. 
+      // Example of the test is in file mirrors_lookup_test.dart
+      var file = new File('test.dart');
+      file.writeAsStringSync('''
+  library test;
+  /**
+   * Doc comment for class A.
+   * 
+   * Multiline Test
+   */
+  /*
+   * Normal comment for class A.
+   */
+  class A {
+    
+    /**
+     * Markdown _test_ for **class** [A] 
+     */
+    int _someNumber;
+    
+    A() {
+      _someNumber = 12;
+    }
+    
+    void doThis(int a) {
+      print(a);
+    }
+  }
+  
+  main() {
+    A a = new A();
+    a.doThis(5);
+  }
+      ''');
+      
+      getMirrorSystem(['test.dart'],'', parseSdk: false)
+        .then(expectAsync1((mirrorSystem) {
+          var testLibraryUri = currentDirectory.resolve('test.dart');
+          var library = generateLibrary(mirrorSystem.libraries[testLibraryUri], 
+              includePrivate: true);
+          expect(library is Library, isTrue);
+          
+          var classes = library.classes.values;
+          expect(classes.every((e) => e is Class), isTrue);
+          
+          var classMethods = [];
+          classes.forEach((e) => classMethods.addAll(e.methods.values));
+          expect(classMethods.every((e) => e is Method), isTrue);
+          
+          var methodParameters = [];
+          classMethods.forEach((e) { 
+            methodParameters.addAll(e.parameters.values);
+          });
+          expect(methodParameters.every((e) => e is Parameter), isTrue);
+          
+          var functions = library.functions.values;
+          expect(functions.every((e) => e is Method), isTrue);
+          
+          var functionParameters = [];
+          functions.forEach((e) {
+            functionParameters.addAll(e.parameters.values); 
+          });
+          expect(functionParameters.every((e) => e is Parameter), isTrue);
+    
+          var variables = library.variables.values;
+          expect(variables.every((e) => e is Variable), isTrue);
+          
+          file.deleteSync();
+        }));
+    });
+  });
+}