Initial commit

Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

unit_tests/helpers/string_to_hash_tests.cpp

@@ -0,0 +1,252 @@
+/*
+ * 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/hash.h"
+#include "runtime/helpers/string_helpers.h"
+#include "gtest/gtest.h"
+
+using OCLRT::Hash;
+
+TEST(CreateCombinedStrings, singleString) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char srcString[] = "HelloWorld";
+    const char *pSrcString = srcString;
+    auto srcStrings = &pSrcString;
+    size_t lengths = strlen(srcString);
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        1,
+        srcStrings,
+        &lengths);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(lengths + 1, dstStringSizeInBytes);
+
+    EXPECT_EQ(0, strcmp(srcString, dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, SingleStringWithNullLengthNoCrash) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char srcString[] = "HelloWorld";
+    const char *pSrcString = srcString;
+    auto srcStrings = &pSrcString;
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        1,
+        srcStrings,
+        nullptr);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(srcString, dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, SingleStringWithZeroLengthNoCrash) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char srcString[] = "HelloWorld";
+    const char *pSrcString = srcString;
+    auto srcStrings = &pSrcString;
+    size_t lengths = 0;
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        1,
+        srcStrings,
+        &lengths);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(srcString, dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, multiString) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char *srcString[] = {"HelloWorld", "dlroWolleH"};
+    std::string combined(srcString[0]);
+    combined += srcString[1];
+
+    auto srcStrings = &srcString[0];
+    size_t lengths[2] = {strlen(srcString[0]), strlen(srcString[1])};
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        2,
+        srcStrings,
+        lengths);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(combined.c_str(), dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, multiStringWithNullLengthNoCrash) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char *srcString[] = {"HelloWorld", "dlroWolleH"};
+    std::string combined(srcString[0]);
+    combined += srcString[1];
+    auto srcStrings = &srcString[0];
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        2,
+        srcStrings,
+        nullptr);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(combined.c_str(), dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, multiStringWithZeroLengthNoCrash) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char *srcString[] = {"HelloWorld", "dlroWolleH"};
+    std::string combined(srcString[0]);
+    combined += srcString[1];
+    auto srcStrings = &srcString[0];
+    size_t lengths[2] = {0, strlen(srcString[1])};
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        2,
+        srcStrings,
+        lengths);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(combined.c_str(), dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, GivenMultipleStringWhichOneContainsAndErrorAndSizeThatForcesDriverToOmitTheErorrThenProgramSourceDoesntContainErrorString) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char *srcString[] = {"HelloWorld", "dlroWolleHBABA"};
+    const char *expString[] = {"HelloWorld", "dlroWolleH"};
+    size_t lengths[2] = {0, strlen(expString[1])};
+    std::string combined(expString[0]);
+    combined += expString[1];
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        2,
+        srcString,
+        lengths);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(combined.c_str(), dstString.c_str()));
+}
+
+TEST(CreateCombinedStrings, negativeScenarios) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char *srcString[] = {"HelloWorld", "dlroWolleH"};
+    std::string combined(srcString[0]);
+    combined += srcString[1];
+    const char *srcStrings[2] = {srcString[0], srcString[1]};
+    size_t lengths[2] = {0, strlen(srcString[1])};
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        0,
+        srcStrings,
+        lengths);
+    EXPECT_EQ(CL_INVALID_VALUE, retVal);
+
+    retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        1,
+        nullptr,
+        lengths);
+    EXPECT_EQ(CL_INVALID_VALUE, retVal);
+
+    srcStrings[0] = nullptr;
+    retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        2,
+        srcStrings,
+        lengths);
+    EXPECT_EQ(CL_INVALID_VALUE, retVal);
+}
+
+TEST(CreateCombinedStrings, GivenMultipleStringThatCountIsHigherThenMaximalStackSizeSizesWhenAskedForCombinedThenProperStringIsRetruned) {
+    std::string dstString;
+    size_t dstStringSizeInBytes = 0;
+    const char *defaultString = "hello";
+    const char *srcString[maximalStackSizeSizes + 2];
+    std::string combinedString;
+    for (int i = 0; i < maximalStackSizeSizes + 2; i++) {
+        srcString[i] = defaultString;
+        combinedString += defaultString;
+    }
+
+    auto retVal = createCombinedString(
+        dstString,
+        dstStringSizeInBytes,
+        maximalStackSizeSizes + 2,
+        srcString,
+        nullptr);
+
+    EXPECT_EQ(CL_SUCCESS, retVal);
+    EXPECT_EQ(0, strcmp(combinedString.c_str(), dstString.c_str()));
+}
+
+TEST(CreateHash, HashBuffers) {
+    char pBuffer[128];
+    memset(pBuffer, 0x23, sizeof(pBuffer));
+
+    // make sure we can get a hash and make sure we can get the same hash
+    auto hash1 = Hash::hash(pBuffer, sizeof(pBuffer));
+    auto hash2 = Hash::hash(pBuffer, sizeof(pBuffer));
+    EXPECT_NE(0u, hash1);
+    EXPECT_NE(0u, hash2);
+    EXPECT_EQ(hash1, hash2);
+
+    // make sure that we get a different hash for different length/data
+    auto hash3 = Hash::hash(pBuffer, sizeof(pBuffer) - 1);
+    EXPECT_NE(0u, hash3);
+    EXPECT_NE(hash2, hash3);
+}
+
+TEST(CreateHash, unalignedLengths) {
+    char pBuffer[] = {
+        0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55};
+
+    // Use unaligned lengths. Wiggle the byte after the length
+    // Shouldn't affect hash.
+    for (auto length = 1u; length < sizeof(pBuffer); length++) {
+        auto hash1 = Hash::hash(pBuffer, length);
+        pBuffer[length]++;
+        EXPECT_EQ(hash1, Hash::hash(pBuffer, length));
+    }
+}