Refactoring tests and adding more test vectors

Author: jonasfj

test/testrunners.dart

@@ -16,6 +16,7 @@ import 'utils/utils.dart';
 import 'utils/testrunner.dart' show TestRunner;
 import 'package:test/test.dart' show test;
 
+// TestRunner implementations
 import 'webcrypto/aescbc_test.dart' as aescbc_test;
 import 'webcrypto/aesctr_test.dart' as aesctr_test;
 import 'webcrypto/aesgcm_test.dart' as aesgcm_test;
@@ -28,6 +29,10 @@ import 'webcrypto/rsaoaep_test.dart' as rsaoaep_test;
 import 'webcrypto/rsapss_test.dart' as rsapss_test;
 import 'webcrypto/rsassapkcs1v15_test.dart' as rsassapkcs1v15_test;
 
+// Other test files, that don't use TestRunner
+import 'webcrypto/random_test.dart' as random_test;
+import 'webcrypto/digest_test.dart' as digest_test;
+
 /// Test runners from all test files except `digest_test.dart` and
 /// `random_test.dart`, which do not use [TestRunner].
 final testRunners = <TestRunner>[
@@ -52,4 +57,7 @@ void runAllTests({TestFn test = test}) {
   for (final r in testRunners) {
     r.runTests(test: test);
   }
+  // We don't use [TestRunner] for all tests, so we just add them manually.
+  random_test.runTests(test: test);
+  digest_test.runTests(test: test);
 }

test/utils/testrunner.dart

@@ -25,6 +25,9 @@ import 'utils.dart';
 import 'lipsum.dart';
 import 'err_stack_stub.dart' if (dart.library.ffi) 'err_stack_ffi.dart';
 
+// Export utilities necessary for implementing a `TestRunner`.
+export 'utils.dart' show hashFromJson, curveFromJson;
+
 List<int> _optionalBase64Decode(dynamic data) =>
     data == null ? null : base64.decode(data as String);