1 files changed, 109 insertions, 0 deletions
diff --git a/agent/src/test/java/com/code_intelligence/jazzer/instrumentor/ReplaceHooks.java b/agent/src/test/java/com/code_intelligence/jazzer/instrumentor/ReplaceHooks.java
new file mode 100644
index 00000000..a71e1180
--- /dev/null
+++ b/agent/src/test/java/com/code_intelligence/jazzer/instrumentor/ReplaceHooks.java
@@ -0,0 +1,109 @@
+// 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 ReplaceHooks {
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnTrue1")
+  public static boolean
+  patchShouldReturnTrue1(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return true;
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnTrue2")
+  public static Boolean
+  patchShouldReturnTrue2(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return true;
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnTrue3")
+  public static Object
+  patchShouldReturnTrue3(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return true;
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnFalse1")
+  public static Boolean
+  patchShouldReturnFalse1(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return false;
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnFalse2")
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnFalse3")
+  public static Object
+  patchShouldReturnFalse2(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return false;
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldReturnReversed",
+      targetMethodDescriptor = "(Ljava/lang/String;)Ljava/lang/String;")
+  public static String
+  patchShouldReturnReversed(
+      MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return new StringBuilder((String) arguments[0]).reverse().toString();
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldIncrement")
+  public static int
+  patchShouldIncrement(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return ((int) arguments[0]) + 1;
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "shouldCallPass")
+  public static void
+  patchShouldCallPass(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    ((ReplaceHooksTargetContract) thisObject).pass("shouldCallPass");
+  }
+
+  @MethodHook(type = HookType.REPLACE,
+      targetClassName = "com.code_intelligence.jazzer.instrumentor.ReplaceHooksTarget",
+      targetMethod = "idempotent", targetMethodDescriptor = "(I)I")
+  public static int
+  patchIdempotent(MethodHandle method, Object thisObject, Object[] arguments, int hookId)
+      throws Throwable {
+    // Iterate the function twice to pass the test.
+    int input = (int) arguments[0];
+    int temp = (int) method.invokeWithArguments(thisObject, input);
+    return (int) method.invokeWithArguments(thisObject, temp);
+  }
+
+  @MethodHook(type = HookType.REPLACE, targetClassName = "java.util.AbstractList",
+      targetMethod = "get", targetMethodDescriptor = "(I)Ljava/lang/Object;")
+  public static Object
+  patchAbstractListGet(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
+    return true;
+  }
+}