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Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

unit_tests/command_stream/linear_stream_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/command_stream/linear_stream.h"
+#include "unit_tests/command_stream/linear_stream_fixture.h"
+
+using namespace OCLRT;
+
+TEST(LinearStreamCtorTest, establishInitialValues) {
+    LinearStream linearStream;
+    EXPECT_EQ(nullptr, linearStream.getBase());
+    EXPECT_EQ(0u, linearStream.getMaxAvailableSpace());
+}
+
+TEST_F(LinearStreamTest, getSpaceTestSizeZero) {
+    EXPECT_NE(nullptr, linearStream.getSpace(0));
+}
+
+TEST_F(LinearStreamTest, getSpaceTestSizeNonZero) {
+    EXPECT_NE(nullptr, linearStream.getSpace(sizeof(uint32_t)));
+}
+
+TEST_F(LinearStreamTest, getSpaceIncrementsPointerCorrectly) {
+    size_t allocSize = 1;
+    auto ptr1 = linearStream.getSpace(allocSize);
+    ASSERT_NE(nullptr, ptr1);
+
+    auto ptr2 = linearStream.getSpace(2);
+    ASSERT_NE(nullptr, ptr2);
+
+    EXPECT_EQ(allocSize, (uintptr_t)ptr2 - (uintptr_t)ptr1);
+}
+
+TEST_F(LinearStreamTest, getSpaceTestReturnsWritablePointer) {
+    uint32_t cmd = 0xbaddf00d;
+    auto pCmd = linearStream.getSpace(sizeof(cmd));
+    ASSERT_NE(nullptr, pCmd);
+    *(uint32_t *)pCmd = cmd;
+}
+
+TEST_F(LinearStreamTest, getSpaceReturnsDifferentPointersForEachRequest) {
+    auto pCmd = linearStream.getSpace(sizeof(uint32_t));
+    ASSERT_NE(nullptr, pCmd);
+    auto pCmd2 = linearStream.getSpace(sizeof(uint32_t));
+    ASSERT_NE(pCmd2, pCmd);
+}
+
+TEST_F(LinearStreamTest, getMaxAvailableSpace) {
+    ASSERT_EQ(linearStream.getMaxAvailableSpace(), linearStream.getAvailableSpace());
+}
+
+TEST_F(LinearStreamTest, getAvailableSpaceShouldBeNonZeroAfterInit) {
+    EXPECT_NE(0u, linearStream.getAvailableSpace());
+}
+
+TEST_F(LinearStreamTest, getSpaceReducesAvailableSpace) {
+    auto originalAvailable = linearStream.getAvailableSpace();
+    linearStream.getSpace(sizeof(uint32_t));
+
+    EXPECT_LT(linearStream.getAvailableSpace(), originalAvailable);
+}
+
+TEST_F(LinearStreamTest, putSpaceReducesAvailableSpace) {
+    auto originalAvailable = linearStream.getAvailableSpace();
+    size_t sizeToAllocate = 2 * sizeof(uint32_t);
+
+    ASSERT_NE(nullptr, linearStream.getSpace(sizeToAllocate));
+    linearStream.putSpace(sizeToAllocate);
+
+    EXPECT_EQ(linearStream.getAvailableSpace(), originalAvailable);
+}
+
+TEST_F(LinearStreamTest, testGetUsed) {
+    size_t sizeToAllocate = 2 * sizeof(uint32_t);
+    ASSERT_NE(nullptr, linearStream.getSpace(sizeToAllocate));
+
+    EXPECT_EQ(sizeToAllocate, linearStream.getUsed());
+}
+
+TEST_F(LinearStreamTest, testGetBase) {
+    ASSERT_EQ(pCmdBuffer, linearStream.getBase());
+}
+
+TEST_F(LinearStreamTest, testReplaceBuffer) {
+    char buffer[256];
+    linearStream.replaceBuffer(buffer, sizeof(buffer));
+    EXPECT_EQ(buffer, linearStream.getBase());
+    EXPECT_EQ(sizeof(buffer), linearStream.getAvailableSpace());
+    EXPECT_EQ(0u, linearStream.getUsed());
+}