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Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

unit_tests/mem_obj/sub_buffer_tests.cpp

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+/*
+ * Copyright (c) 2017, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "runtime/helpers/ptr_math.h"
+#include "runtime/mem_obj/buffer.h"
+#include "unit_tests/fixtures/device_fixture.h"
+#include "unit_tests/fixtures/memory_management_fixture.h"
+#include "unit_tests/helpers/memory_management.h"
+#include "unit_tests/mocks/mock_buffer.h"
+#include "unit_tests/mocks/mock_context.h"
+#include "gtest/gtest.h"
+
+using namespace OCLRT;
+
+namespace ULT {
+
+static const unsigned int sizeTestBufferInBytes = 32;
+
+class SubBufferTest : public DeviceFixture,
+                      public MemoryManagementFixture,
+                      public ::testing::Test {
+  public:
+    SubBufferTest() {
+    }
+
+  protected:
+    void SetUp() override {
+        buffer = Buffer::create(&context, CL_MEM_READ_WRITE | CL_MEM_USE_HOST_PTR,
+                                sizeTestBufferInBytes, pHostPtr, retVal);
+        ASSERT_EQ(CL_SUCCESS, retVal);
+        ASSERT_NE(nullptr, buffer);
+    }
+
+    void TearDown() override {
+        delete buffer;
+        DeviceFixture::TearDown();
+    }
+
+    cl_int retVal = CL_SUCCESS;
+    MockContext context;
+    unsigned char pHostPtr[sizeTestBufferInBytes];
+    Buffer *buffer = nullptr;
+};
+
+TEST_F(SubBufferTest, createSubBuffer) {
+    cl_buffer_region region = {2, 12};
+    EXPECT_EQ(1, buffer->getRefInternalCount());
+
+    auto subBuffer = buffer->createSubBuffer(CL_MEM_READ_ONLY, &region, retVal);
+    EXPECT_EQ(2, buffer->getRefInternalCount());
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_NE(nullptr, subBuffer);
+
+    delete subBuffer;
+    EXPECT_EQ(1, buffer->getRefInternalCount());
+}
+
+TEST_F(SubBufferTest, GivenUnalignedHostPtrBufferWhenSubBufferIsCreatedThenItIsNonZeroCopy) {
+    cl_buffer_region region = {2, 2};
+    cl_int retVal = 0;
+
+    void *pUnalignedHostPtr = alignUp(&pHostPtr, 4);
+    Buffer *buffer = Buffer::create(&context, CL_MEM_READ_WRITE | CL_MEM_USE_HOST_PTR,
+                                    sizeTestBufferInBytes, pUnalignedHostPtr, retVal);
+    ASSERT_NE(nullptr, buffer);
+    ASSERT_EQ(CL_SUCCESS, retVal);
+
+    auto subBuffer = buffer->createSubBuffer(CL_MEM_READ_ONLY, &region, retVal);
+    EXPECT_NE(nullptr, subBuffer);
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_FALSE(subBuffer->isMemObjZeroCopy());
+
+    subBuffer->release();
+    buffer->release();
+}
+
+TEST_F(SubBufferTest, GivenAlignmentThatIsHigherThen4BytesWhenCheckedForValidityThenTrueIsReturned) {
+
+    cl_buffer_region region = {2, 2};
+    EXPECT_FALSE(buffer->isValidSubBufferOffset(region.origin));
+    cl_buffer_region region2 = {4, 4};
+    EXPECT_TRUE(buffer->isValidSubBufferOffset(region2.origin));
+    cl_buffer_region region3 = {8, 4};
+    EXPECT_TRUE(buffer->isValidSubBufferOffset(region3.origin));
+}
+
+TEST_F(SubBufferTest, givenSharingHandlerFromParentBufferWhenCreateThenShareHandler) {
+    cl_buffer_region region = {2, 12};
+    auto handler = new SharingHandler();
+    buffer->setSharingHandler(handler);
+
+    auto subBuffer = buffer->createSubBuffer(CL_MEM_READ_ONLY, &region, retVal);
+    ASSERT_NE(nullptr, subBuffer);
+    EXPECT_EQ(subBuffer->getSharingHandler().get(), handler);
+
+    delete subBuffer;
+    EXPECT_EQ(1, buffer->getRefInternalCount());
+}
+} // namespace ULT