commit d0ffd62e89bf97fa20a63f282d034b6745328210
author Phil Burk <philburk@google.com> Wed Dec 21 11:50:41 2016 -0800
committer Phil Burk <philburk@google.com> Wed Jan 18 01:59:56 2017 +0000
tree 66500fc6c861d624ae9ef3e0a29a6ce1e38b2e8e
parent addae1cfa92c3bae2b59917160da5520d2a25865

Oboe Tests: added test_marshalling.cpp

Bug: 33347409
Test: these are gtests

Change-Id: Ie79751464f4147744d25740da991a57fffa03c70
Signed-off-by: Phil Burk <philburk@google.com>

media/liboboe/tests/test_marshalling.cpp

diff --git a/media/liboboe/tests/test_marshalling.cpp b/media/liboboe/tests/test_marshalling.cpp
new file mode 100644
index 0000000..8f4cc2c
--- /dev/null
+++ b/media/liboboe/tests/test_marshalling.cpp
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+// Unit tests for Oboe Marshalling of RingBuffer information.
+
+#include <stdlib.h>
+#include <math.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <cutils/ashmem.h>
+#include <gtest/gtest.h>
+#include <sys/mman.h>
+
+#include <oboe/OboeDefinitions.h>
+#include <binding/AudioEndpointParcelable.h>
+
+using namespace android;
+using namespace oboe;
+
+// Test adding one value.
+TEST(test_marshalling, oboe_one_read_write) {
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    const int arbitraryValue = 235;
+    parcel.writeInt32(arbitraryValue);
+    parcel.setDataPosition(pos);
+    int32_t y;
+    parcel.readInt32(&y);
+    EXPECT_EQ(arbitraryValue, y);
+}
+
+// Test SharedMemoryParcel.
+TEST(test_marshalling, oboe_shared_memory) {
+    SharedMemoryParcelable sharedMemoryA;
+    SharedMemoryParcelable sharedMemoryB;
+    const size_t memSizeBytes = 840;
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemoryA.setup(fd, memSizeBytes);
+    void *region1;
+    EXPECT_EQ(OBOE_OK, sharedMemoryA.resolve(0, 16, &region1)); // fits in region
+    EXPECT_NE(OBOE_OK, sharedMemoryA.resolve(-2, 16, &region1)); // offset is negative
+    EXPECT_NE(OBOE_OK, sharedMemoryA.resolve(0, memSizeBytes + 8, &region1)); // size too big
+    EXPECT_NE(OBOE_OK, sharedMemoryA.resolve(memSizeBytes - 8, 16, &region1)); // goes past the end
+    int32_t *buffer1 = (int32_t *)region1;
+    buffer1[0] = 98735; // arbitrary value
+
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    sharedMemoryA.writeToParcel(&parcel);
+
+    parcel.setDataPosition(pos);
+    sharedMemoryB.readFromParcel(&parcel);
+    EXPECT_EQ(sharedMemoryA.getSizeInBytes(), sharedMemoryB.getSizeInBytes());
+
+    // should see same value at two different addresses
+    void *region2;
+    EXPECT_EQ(OBOE_OK, sharedMemoryB.resolve(0, 16, &region2));
+    int32_t *buffer2 = (int32_t *)region2;
+    EXPECT_NE(buffer1, buffer2);
+    EXPECT_EQ(buffer1[0], buffer2[0]);
+}
+
+// Test SharedRegionParcel.
+TEST(test_marshalling, oboe_shared_region) {
+    SharedMemoryParcelable sharedMemories[2];
+    SharedRegionParcelable sharedRegionA;
+    SharedRegionParcelable sharedRegionB;
+    const size_t memSizeBytes = 840;
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemories[0].setup(fd, memSizeBytes);
+    int32_t regionOffset1 = 32;
+    int32_t regionSize1 = 16;
+    sharedRegionA.setup(0, regionOffset1, regionSize1);
+
+    void *region1;
+    EXPECT_EQ(OBOE_OK, sharedRegionA.resolve(sharedMemories, &region1));
+    int32_t *buffer1 = (int32_t *)region1;
+    buffer1[0] = 336677; // arbitrary value
+
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    sharedRegionA.writeToParcel(&parcel);
+
+    parcel.setDataPosition(pos);
+    sharedRegionB.readFromParcel(&parcel);
+
+    // should see same value
+    void *region2;
+    EXPECT_EQ(OBOE_OK, sharedRegionB.resolve(sharedMemories, &region2));
+    int32_t *buffer2 = (int32_t *)region2;
+    EXPECT_EQ(buffer1[0], buffer2[0]);
+}
+
+// Test RingBufferParcelable.
+TEST(test_marshalling, oboe_ring_buffer_parcelable) {
+    SharedMemoryParcelable sharedMemories[2];
+    RingBufferParcelable ringBufferA;
+    RingBufferParcelable ringBufferB;
+
+    const size_t bytesPerFrame = 8;
+    const size_t framesPerBurst = 32;
+    const size_t dataSizeBytes = 2048;
+    const int32_t counterSizeBytes = sizeof(int64_t);
+    const size_t memSizeBytes = dataSizeBytes + (2 * counterSizeBytes);
+
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemories[0].setup(fd, memSizeBytes);
+
+    int32_t sharedMemoryIndex = 0;
+    // arrange indices and data in the shared memory
+    int32_t readOffset = 0;
+    int32_t writeOffset = readOffset + counterSizeBytes;
+    int32_t dataOffset = writeOffset + counterSizeBytes;
+    ringBufferA.setupMemory(sharedMemoryIndex, dataOffset, dataSizeBytes,
+        readOffset, writeOffset, counterSizeBytes);
+    ringBufferA.setFramesPerBurst(framesPerBurst);
+    ringBufferA.setBytesPerFrame(bytesPerFrame);
+    ringBufferA.setCapacityInFrames(dataSizeBytes / bytesPerFrame);
+
+    // setup A
+    RingBufferDescriptor descriptorA;
+    EXPECT_EQ(OBOE_OK, ringBufferA.resolve(sharedMemories, &descriptorA));
+    descriptorA.dataAddress[0] = 95;
+    descriptorA.dataAddress[1] = 57;
+    descriptorA.readCounterAddress[0] = 17;
+    descriptorA.writeCounterAddress[0] = 39;
+
+    // write A to parcel
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    ringBufferA.writeToParcel(&parcel);
+
+    // read B from parcel
+    parcel.setDataPosition(pos);
+    ringBufferB.readFromParcel(&parcel);
+
+    RingBufferDescriptor descriptorB;
+    EXPECT_EQ(OBOE_OK, ringBufferB.resolve(sharedMemories, &descriptorB));
+
+    // A and B should match
+    EXPECT_EQ(descriptorA.dataAddress[0], descriptorB.dataAddress[0]);
+    EXPECT_EQ(descriptorA.dataAddress[1], descriptorB.dataAddress[1]);
+    EXPECT_EQ(descriptorA.readCounterAddress[0], descriptorB.readCounterAddress[0]);
+    EXPECT_EQ(descriptorA.writeCounterAddress[0], descriptorB.writeCounterAddress[0]);
+
+    EXPECT_EQ(ringBufferA.getFramesPerBurst(), ringBufferB.getFramesPerBurst());
+    EXPECT_EQ(ringBufferA.getBytesPerFrame(), ringBufferB.getBytesPerFrame());
+    EXPECT_EQ(ringBufferA.getCapacityInFrames(), ringBufferB.getCapacityInFrames());
+}