1 files changed, 53 insertions, 0 deletions
diff --git a/src/test/java/com/code_intelligence/jazzer/instrumentor/BeforeHooks.java b/src/test/java/com/code_intelligence/jazzer/instrumentor/BeforeHooks.java
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index 00000000..31577dad
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+++ b/src/test/java/com/code_intelligence/jazzer/instrumentor/BeforeHooks.java
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+// Copyright 2021 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.instrumentor;
+
+import com.code_intelligence.jazzer.api.HookType;
+import com.code_intelligence.jazzer.api.MethodHook;
+import java.lang.invoke.MethodHandle;
+
+public class BeforeHooks {
+  @MethodHook(type = HookType.BEFORE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.BeforeHooksTarget",
+      targetMethod = "hasFunc1BeenCalled", targetMethodDescriptor = "()Z")
+  public static void
+  patchHasFunc1BeenCalled(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    ((BeforeHooksTargetContract) thisObject).func1();
+  }
+
+  @MethodHook(type = HookType.BEFORE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.BeforeHooksTarget",
+      targetMethod = "getTimesCalled", targetMethodDescriptor = "()Ljava/lang/Integer;")
+  public static void
+  patchHasBeenCalled(MethodHandle method, Object thisObject, Object[] arguments, int hookId)
+      throws Throwable {
+    // Invoke static method getTimesCalled() again to pass the test.
+    method.invoke();
+  }
+
+  @MethodHook(type = HookType.BEFORE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.BeforeHooksTarget",
+      targetMethod = "hasFuncWithArgsBeenCalled")
+  public static void
+  patchHasFuncWithArgsBeenCalled(
+      MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    if (arguments.length == 2 && arguments[0] instanceof Boolean
+        && arguments[1] instanceof String) {
+      // only if the arguments passed to the hook match the expected argument types and count invoke
+      // the method to pass the test
+      ((BeforeHooksTargetContract) thisObject).setFuncWithArgsCalled((Boolean) arguments[0]);
+    }
+  }
+}