1 files changed, 42 insertions, 0 deletions
diff --git a/src/main/java/com/code_intelligence/jazzer/junit/FuzzingArgumentsProvider.java b/src/main/java/com/code_intelligence/jazzer/junit/FuzzingArgumentsProvider.java
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+++ b/src/main/java/com/code_intelligence/jazzer/junit/FuzzingArgumentsProvider.java
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+/*
+ * Copyright 2023 Code Intelligence GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.code_intelligence.jazzer.junit;
+
+import static com.code_intelligence.jazzer.junit.Utils.isFuzzing;
+
+import java.util.stream.Stream;
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.ArgumentsProvider;
+
+class FuzzingArgumentsProvider implements ArgumentsProvider {
+  @Override
+  public Stream<? extends Arguments> provideArguments(ExtensionContext extensionContext) {
+    if (!isFuzzing(extensionContext)) {
+      return Stream.empty();
+    }
+
+    // When fuzzing, supply a special set of arguments that our InvocationInterceptor uses as a
+    // sign to start fuzzing.
+    // FIXME: This is a hack that is needed only because there does not seem to be a way to
+    //  communicate out of band that a certain invocation was triggered by a particular argument
+    //  provider. We should get rid of this hack as soon as
+    //  https://github.com/junit-team/junit5/issues/3282 has been addressed.
+    return Stream.of(
+        Utils.getMarkedArguments(extensionContext.getRequiredTestMethod(), "Fuzzing..."));
+  }
+}