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// Copyright 2017 Google Inc.
//
// 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 "internal/string_view.h"
#include "gtest/gtest.h"
namespace cpu_features {
bool operator==(const StringView& a, const StringView& b) {
return CpuFeatures_StringView_IsEquals(a, b);
}
namespace {
TEST(StringViewTest, Empty) {
EXPECT_EQ(kEmptyStringView.ptr, nullptr);
EXPECT_EQ(kEmptyStringView.size, 0);
}
TEST(StringViewTest, Build) {
const auto view = str("test");
EXPECT_EQ(view.ptr[0], 't');
EXPECT_EQ(view.size, 4);
}
TEST(StringViewTest, CpuFeatures_StringView_IndexOfChar) {
// Found.
EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 'e'), 1);
// Not found.
EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 'z'), -1);
// Empty.
EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(kEmptyStringView, 'z'), -1);
}
TEST(StringViewTest, CpuFeatures_StringView_IndexOf) {
// Found.
EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("es")), 1);
// Not found.
EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("aa")), -1);
// Empty.
EXPECT_EQ(CpuFeatures_StringView_IndexOf(kEmptyStringView, str("aa")), -1);
EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("aa"), kEmptyStringView), -1);
}
TEST(StringViewTest, CpuFeatures_StringView_StartsWith) {
EXPECT_TRUE(CpuFeatures_StringView_StartsWith(str("test"), str("te")));
EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("")));
EXPECT_FALSE(
CpuFeatures_StringView_StartsWith(str("test"), kEmptyStringView));
EXPECT_FALSE(
CpuFeatures_StringView_StartsWith(kEmptyStringView, str("test")));
}
TEST(StringViewTest, CpuFeatures_StringView_IsEquals) {
EXPECT_TRUE(
CpuFeatures_StringView_IsEquals(kEmptyStringView, kEmptyStringView));
EXPECT_TRUE(CpuFeatures_StringView_IsEquals(kEmptyStringView, str("")));
EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str(""), kEmptyStringView));
EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str("a"), str("a")));
EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), str("b")));
EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), kEmptyStringView));
EXPECT_FALSE(CpuFeatures_StringView_IsEquals(kEmptyStringView, str("a")));
}
TEST(StringViewTest, CpuFeatures_StringView_PopFront) {
EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 2), str("st"));
EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 0), str("test"));
EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 4), str(""));
EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 100), str(""));
}
TEST(StringViewTest, CpuFeatures_StringView_ParsePositiveNumber) {
EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("42")), 42);
EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2a")), 42);
EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2A")), 42);
EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("-0x2A")), -1);
EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("abc")), -1);
EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("")), -1);
}
TEST(StringViewTest, CpuFeatures_StringView_CopyString) {
char buf[4];
buf[0] = 'X';
// Empty
CpuFeatures_StringView_CopyString(str(""), buf, sizeof(buf));
EXPECT_STREQ(buf, "");
// Less
CpuFeatures_StringView_CopyString(str("a"), buf, sizeof(buf));
EXPECT_STREQ(buf, "a");
// exact
CpuFeatures_StringView_CopyString(str("abc"), buf, sizeof(buf));
EXPECT_STREQ(buf, "abc");
// More
CpuFeatures_StringView_CopyString(str("abcd"), buf, sizeof(buf));
EXPECT_STREQ(buf, "abc");
}
TEST(StringViewTest, CpuFeatures_StringView_HasWord) {
// Find flags at beginning, middle and end.
EXPECT_TRUE(
CpuFeatures_StringView_HasWord(str("first middle last"), "first"));
EXPECT_TRUE(
CpuFeatures_StringView_HasWord(str("first middle last"), "middle"));
EXPECT_TRUE(CpuFeatures_StringView_HasWord(str("first middle last"), "last"));
// Do not match partial flags
EXPECT_FALSE(
CpuFeatures_StringView_HasWord(str("first middle last"), "irst"));
EXPECT_FALSE(CpuFeatures_StringView_HasWord(str("first middle last"), "mid"));
EXPECT_FALSE(CpuFeatures_StringView_HasWord(str("first middle last"), "las"));
}
TEST(StringViewTest, CpuFeatures_StringView_GetAttributeKeyValue) {
const StringView line = str(" key : first middle last ");
StringView key, value;
EXPECT_TRUE(CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value));
EXPECT_EQ(key, str("key"));
EXPECT_EQ(value, str("first middle last"));
}
TEST(StringViewTest, FailingGetAttributeKeyValue) {
const StringView line = str("key first middle last");
StringView key, value;
EXPECT_FALSE(CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value));
}
} // namespace
} // namespace cpu_features
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