1 files changed, 258 insertions, 0 deletions
diff --git a/libs/input/tests/InputDispatcher_test.cpp b/libs/input/tests/InputDispatcher_test.cpp
new file mode 100644
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--- /dev/null
+++ b/libs/input/tests/InputDispatcher_test.cpp
@@ -0,0 +1,258 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include "../InputDispatcher.h"
+
+#include <gtest/gtest.h>
+#include <linux/input.h>
+
+namespace android {
+
+// An arbitrary time value.
+static const nsecs_t ARBITRARY_TIME = 1234;
+
+// An arbitrary device id.
+static const int32_t DEVICE_ID = 1;
+
+// An arbitrary display id.
+static const int32_t DISPLAY_ID = 0;
+
+// An arbitrary injector pid / uid pair that has permission to inject events.
+static const int32_t INJECTOR_PID = 999;
+static const int32_t INJECTOR_UID = 1001;
+
+
+// --- FakeInputDispatcherPolicy ---
+
+class FakeInputDispatcherPolicy : public InputDispatcherPolicyInterface {
+    InputDispatcherConfiguration mConfig;
+
+protected:
+    virtual ~FakeInputDispatcherPolicy() {
+    }
+
+public:
+    FakeInputDispatcherPolicy() {
+    }
+
+private:
+    virtual void notifyConfigurationChanged(nsecs_t when) {
+    }
+
+    virtual nsecs_t notifyANR(const sp<InputApplicationHandle>& inputApplicationHandle,
+            const sp<InputWindowHandle>& inputWindowHandle,
+            const String8& reason) {
+        return 0;
+    }
+
+    virtual void notifyInputChannelBroken(const sp<InputWindowHandle>& inputWindowHandle) {
+    }
+
+    virtual void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) {
+        *outConfig = mConfig;
+    }
+
+    virtual bool filterInputEvent(const InputEvent* inputEvent, uint32_t policyFlags) {
+        return true;
+    }
+
+    virtual void interceptKeyBeforeQueueing(const KeyEvent* keyEvent, uint32_t& policyFlags) {
+    }
+
+    virtual void interceptMotionBeforeQueueing(nsecs_t when, uint32_t& policyFlags) {
+    }
+
+    virtual nsecs_t interceptKeyBeforeDispatching(const sp<InputWindowHandle>& inputWindowHandle,
+            const KeyEvent* keyEvent, uint32_t policyFlags) {
+        return 0;
+    }
+
+    virtual bool dispatchUnhandledKey(const sp<InputWindowHandle>& inputWindowHandle,
+            const KeyEvent* keyEvent, uint32_t policyFlags, KeyEvent* outFallbackKeyEvent) {
+        return false;
+    }
+
+    virtual void notifySwitch(nsecs_t when,
+            uint32_t switchValues, uint32_t switchMask, uint32_t policyFlags) {
+    }
+
+    virtual void pokeUserActivity(nsecs_t eventTime, int32_t eventType) {
+    }
+
+    virtual bool checkInjectEventsPermissionNonReentrant(
+            int32_t injectorPid, int32_t injectorUid) {
+        return false;
+    }
+};
+
+
+// --- InputDispatcherTest ---
+
+class InputDispatcherTest : public testing::Test {
+protected:
+    sp<FakeInputDispatcherPolicy> mFakePolicy;
+    sp<InputDispatcher> mDispatcher;
+
+    virtual void SetUp() {
+        mFakePolicy = new FakeInputDispatcherPolicy();
+        mDispatcher = new InputDispatcher(mFakePolicy);
+    }
+
+    virtual void TearDown() {
+        mFakePolicy.clear();
+        mDispatcher.clear();
+    }
+};
+
+
+TEST_F(InputDispatcherTest, InjectInputEvent_ValidatesKeyEvents) {
+    KeyEvent event;
+
+    // Rejects undefined key actions.
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
+            /*action*/ -1, 0,
+            AKEYCODE_A, KEY_A, AMETA_NONE, 0, ARBITRARY_TIME, ARBITRARY_TIME);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject key events with undefined action.";
+
+    // Rejects ACTION_MULTIPLE since it is not supported despite being defined in the API.
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
+            AKEY_EVENT_ACTION_MULTIPLE, 0,
+            AKEYCODE_A, KEY_A, AMETA_NONE, 0, ARBITRARY_TIME, ARBITRARY_TIME);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject key events with ACTION_MULTIPLE.";
+}
+
+TEST_F(InputDispatcherTest, InjectInputEvent_ValidatesMotionEvents) {
+    MotionEvent event;
+    PointerProperties pointerProperties[MAX_POINTERS + 1];
+    PointerCoords pointerCoords[MAX_POINTERS + 1];
+    for (int i = 0; i <= MAX_POINTERS; i++) {
+        pointerProperties[i].clear();
+        pointerProperties[i].id = i;
+        pointerCoords[i].clear();
+    }
+
+    // Rejects undefined motion actions.
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            /*action*/ -1, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with undefined action.";
+
+    // Rejects pointer down with invalid index.
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_POINTER_DOWN | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+            0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with pointer down index too large.";
+
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_POINTER_DOWN | (-1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+            0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with pointer down index too small.";
+
+    // Rejects pointer up with invalid index.
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_POINTER_UP | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+            0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with pointer up index too large.";
+
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_POINTER_UP | (-1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+            0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with pointer up index too small.";
+
+    // Rejects motion events with invalid number of pointers.
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 0, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with 0 pointers.";
+
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ MAX_POINTERS + 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with more than MAX_POINTERS pointers.";
+
+    // Rejects motion events with invalid pointer ids.
+    pointerProperties[0].id = -1;
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with pointer ids less than 0.";
+
+    pointerProperties[0].id = MAX_POINTER_ID + 1;
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 1, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with pointer ids greater than MAX_POINTER_ID.";
+
+    // Rejects motion events with duplicate pointer ids.
+    pointerProperties[0].id = 1;
+    pointerProperties[1].id = 1;
+    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
+            AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
+            ARBITRARY_TIME, ARBITRARY_TIME,
+            /*pointerCount*/ 2, pointerProperties, pointerCoords);
+    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
+            &event, DISPLAY_ID,
+            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
+            << "Should reject motion events with duplicate pointer ids.";
+}
+
+} // namespace android