mirror of
https://github.com/google/cpu_features.git
synced 2025-11-03 22:40:17 +01:00
203 lines
8.1 KiB
C++
203 lines
8.1 KiB
C++
// Copyright 2017 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/string_view.h"
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#include "gtest/gtest.h"
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namespace cpu_features {
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bool operator==(const StringView& a, const StringView& b) {
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return CpuFeatures_StringView_IsEquals(a, b);
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}
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namespace {
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TEST(StringViewTest, Empty) {
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EXPECT_EQ(kEmptyStringView.ptr, nullptr);
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EXPECT_EQ(kEmptyStringView.size, 0);
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}
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TEST(StringViewTest, Build) {
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const auto view = str("test");
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EXPECT_EQ(view.ptr[0], 't');
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EXPECT_EQ(view.size, 4);
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}
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TEST(StringViewTest, CpuFeatures_StringView_IndexOfChar) {
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// Found.
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EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 'e'), 1);
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EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 't'), 0);
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EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("beef"), 'e'), 1);
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// Not found.
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EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 'z'), -1);
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// Empty.
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EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(kEmptyStringView, 'z'), -1);
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}
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TEST(StringViewTest, CpuFeatures_StringView_IndexOf) {
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// Found.
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EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("es")), 1);
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EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("test")), 0);
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EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("tesstest"), str("test")), 4);
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// Not found.
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EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("aa")), -1);
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// Empty.
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EXPECT_EQ(CpuFeatures_StringView_IndexOf(kEmptyStringView, str("aa")), -1);
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EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("aa"), kEmptyStringView), -1);
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}
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TEST(StringViewTest, CpuFeatures_StringView_StartsWith) {
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EXPECT_TRUE(CpuFeatures_StringView_StartsWith(str("test"), str("te")));
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EXPECT_TRUE(CpuFeatures_StringView_StartsWith(str("test"), str("test")));
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EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("st")));
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EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("est")));
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EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("")));
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EXPECT_FALSE(
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CpuFeatures_StringView_StartsWith(str("test"), kEmptyStringView));
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EXPECT_FALSE(
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CpuFeatures_StringView_StartsWith(kEmptyStringView, str("test")));
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}
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TEST(StringViewTest, CpuFeatures_StringView_IsEquals) {
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EXPECT_TRUE(
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CpuFeatures_StringView_IsEquals(kEmptyStringView, kEmptyStringView));
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EXPECT_TRUE(CpuFeatures_StringView_IsEquals(kEmptyStringView, str("")));
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EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str(""), kEmptyStringView));
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EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str("test"), str("test")));
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EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str("a"), str("a")));
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EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), str("b")));
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EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("aa"), str("a")));
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EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), str("aa")));
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EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), kEmptyStringView));
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EXPECT_FALSE(CpuFeatures_StringView_IsEquals(kEmptyStringView, str("a")));
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}
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TEST(StringViewTest, CpuFeatures_StringView_PopFront) {
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EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 2), str("st"));
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EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 0), str("test"));
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EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 4), str(""));
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EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 100), str(""));
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}
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TEST(StringViewTest, CpuFeatures_StringView_PopBack) {
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EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 2), str("te"));
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EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 0), str("test"));
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EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 4), str(""));
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EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 100), str(""));
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}
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TEST(StringViewTest, CpuFeatures_StringView_KeepFront) {
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EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 2), str("te"));
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EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 0), str(""));
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EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 4), str("test"));
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EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 6), str("test"));
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}
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TEST(StringViewTest, CpuFeatures_StringView_Front) {
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EXPECT_EQ(CpuFeatures_StringView_Front(str("apple")), 'a');
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EXPECT_EQ(CpuFeatures_StringView_Front(str("a")), 'a');
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}
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TEST(StringViewTest, CpuFeatures_StringView_Back) {
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EXPECT_EQ(CpuFeatures_StringView_Back(str("apple")), 'e');
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EXPECT_EQ(CpuFeatures_StringView_Back(str("a")), 'a');
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}
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TEST(StringViewTest, CpuFeatures_StringView_TrimWhitespace) {
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EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str(" first middle last ")),
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str("first middle last"));
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EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str("first middle last ")),
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str("first middle last"));
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EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str(" first middle last")),
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str("first middle last"));
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EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str("first middle last")),
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str("first middle last"));
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}
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TEST(StringViewTest, CpuFeatures_StringView_ParsePositiveNumber) {
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("42")), 42);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2a")), 42);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2A")), 42);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2A2a")), 10794);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2a2A")), 10794);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("-10")), -1);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("-0x2A")), -1);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("abc")), -1);
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EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("")), -1);
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}
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TEST(StringViewTest, CpuFeatures_StringView_CopyString) {
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char buf[4];
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buf[0] = 'X';
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// Empty
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CpuFeatures_StringView_CopyString(str(""), buf, sizeof(buf));
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EXPECT_STREQ(buf, "");
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// Less
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CpuFeatures_StringView_CopyString(str("a"), buf, sizeof(buf));
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EXPECT_STREQ(buf, "a");
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// exact
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CpuFeatures_StringView_CopyString(str("abc"), buf, sizeof(buf));
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EXPECT_STREQ(buf, "abc");
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// More
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CpuFeatures_StringView_CopyString(str("abcd"), buf, sizeof(buf));
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EXPECT_STREQ(buf, "abc");
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}
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TEST(StringViewTest, CpuFeatures_StringView_HasWord) {
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// Find flags at beginning, middle and end.
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EXPECT_TRUE(
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CpuFeatures_StringView_HasWord(str("first middle last"), "first", ' '));
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EXPECT_TRUE(
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CpuFeatures_StringView_HasWord(str("first middle last"), "middle", ' '));
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EXPECT_TRUE(
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CpuFeatures_StringView_HasWord(str("first middle last"), "last", ' '));
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// Find flags at beginning, middle and end with a different separator
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EXPECT_TRUE(
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CpuFeatures_StringView_HasWord(str("first-middle-last"), "first", '-'));
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EXPECT_TRUE(
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CpuFeatures_StringView_HasWord(str("first-middle-last"), "middle", '-'));
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EXPECT_TRUE(
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CpuFeatures_StringView_HasWord(str("first-middle-last"), "last", '-'));
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// Do not match partial flags
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EXPECT_FALSE(
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CpuFeatures_StringView_HasWord(str("first middle last"), "irst", ' '));
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EXPECT_FALSE(
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CpuFeatures_StringView_HasWord(str("first middle last"), "mid", ' '));
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EXPECT_FALSE(
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CpuFeatures_StringView_HasWord(str("first middle last"), "las", ' '));
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}
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TEST(StringViewTest, CpuFeatures_StringView_GetAttributeKeyValue) {
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const StringView line = str(" key : first middle last ");
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StringView key, value;
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EXPECT_TRUE(CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value));
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EXPECT_EQ(key, str("key"));
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EXPECT_EQ(value, str("first middle last"));
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}
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TEST(StringViewTest, FailingGetAttributeKeyValue) {
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const StringView line = str("key first middle last");
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StringView key, value;
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EXPECT_FALSE(CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value));
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}
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} // namespace
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} // namespace cpu_features
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