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//
// Copyright 2015 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// string_utils_unittests:
// Unit tests for the string utils.
//
#include "string_utils.h"
#include <gtest/gtest.h>
using namespace angle;
namespace
{
// Basic SplitString tests
TEST(StringUtilsTest, SplitString_Basics)
{
std::vector<std::string> r;
r = SplitString(std::string(), ",:;", KEEP_WHITESPACE, SPLIT_WANT_ALL);
EXPECT_TRUE(r.empty());
// Empty separator list
r = SplitString("hello, world", "", KEEP_WHITESPACE, SPLIT_WANT_ALL);
ASSERT_EQ(1u, r.size());
EXPECT_EQ("hello, world", r[0]);
// Should split on any of the separators.
r = SplitString("::,,;;", ",:;", KEEP_WHITESPACE, SPLIT_WANT_ALL);
ASSERT_EQ(7u, r.size());
for (auto str : r)
ASSERT_TRUE(str.empty());
r = SplitString("red, green; blue:", ",:;", TRIM_WHITESPACE, SPLIT_WANT_NONEMPTY);
ASSERT_EQ(3u, r.size());
EXPECT_EQ("red", r[0]);
EXPECT_EQ("green", r[1]);
EXPECT_EQ("blue", r[2]);
// Want to split a string along whitespace sequences.
r = SplitString(" red green \tblue\n", " \t\n", TRIM_WHITESPACE, SPLIT_WANT_NONEMPTY);
ASSERT_EQ(3u, r.size());
EXPECT_EQ("red", r[0]);
EXPECT_EQ("green", r[1]);
EXPECT_EQ("blue", r[2]);
// Weird case of splitting on spaces but not trimming.
r = SplitString(" red ", " ", TRIM_WHITESPACE, SPLIT_WANT_ALL);
ASSERT_EQ(3u, r.size());
EXPECT_EQ("", r[0]); // Before the first space.
EXPECT_EQ("red", r[1]);
EXPECT_EQ("", r[2]); // After the last space.
}
// Check different whitespace and result types for SplitString
TEST(StringUtilsTest, SplitString_WhitespaceAndResultType)
{
std::vector<std::string> r;
// Empty input handling.
r = SplitString(std::string(), ",", KEEP_WHITESPACE, SPLIT_WANT_ALL);
EXPECT_TRUE(r.empty());
r = SplitString(std::string(), ",", KEEP_WHITESPACE, SPLIT_WANT_NONEMPTY);
EXPECT_TRUE(r.empty());
// Input string is space and we're trimming.
r = SplitString(" ", ",", TRIM_WHITESPACE, SPLIT_WANT_ALL);
ASSERT_EQ(1u, r.size());
EXPECT_EQ("", r[0]);
r = SplitString(" ", ",", TRIM_WHITESPACE, SPLIT_WANT_NONEMPTY);
EXPECT_TRUE(r.empty());
// Test all 4 combinations of flags on ", ,".
r = SplitString(", ,", ",", KEEP_WHITESPACE, SPLIT_WANT_ALL);
ASSERT_EQ(3u, r.size());
EXPECT_EQ("", r[0]);
EXPECT_EQ(" ", r[1]);
EXPECT_EQ("", r[2]);
r = SplitString(", ,", ",", KEEP_WHITESPACE, SPLIT_WANT_NONEMPTY);
ASSERT_EQ(1u, r.size());
ASSERT_EQ(" ", r[0]);
r = SplitString(", ,", ",", TRIM_WHITESPACE, SPLIT_WANT_ALL);
ASSERT_EQ(3u, r.size());
EXPECT_EQ("", r[0]);
EXPECT_EQ("", r[1]);
EXPECT_EQ("", r[2]);
r = SplitString(", ,", ",", TRIM_WHITESPACE, SPLIT_WANT_NONEMPTY);
ASSERT_TRUE(r.empty());
}
// Tests for TrimString
TEST(StringUtilsTest, TrimString)
{
// Basic tests
EXPECT_EQ("a", TrimString("a", kWhitespaceASCII));
EXPECT_EQ("a", TrimString(" a", kWhitespaceASCII));
EXPECT_EQ("a", TrimString("a ", kWhitespaceASCII));
EXPECT_EQ("a", TrimString(" a ", kWhitespaceASCII));
// Tests with empty strings
EXPECT_EQ("", TrimString("", kWhitespaceASCII));
EXPECT_EQ("", TrimString(" \n\r\t", kWhitespaceASCII));
EXPECT_EQ(" foo ", TrimString(" foo ", ""));
// Tests it doesn't removes characters in the middle
EXPECT_EQ("foo bar", TrimString(" foo bar ", kWhitespaceASCII));
// Test with non-whitespace trimChars
EXPECT_EQ(" ", TrimString("foo bar", "abcdefghijklmnopqrstuvwxyz"));
}
// Basic functionality tests for HexStringToUInt
TEST(StringUtilsTest, HexStringToUIntBasic)
{
unsigned int uintValue;
std::string emptyString;
ASSERT_FALSE(HexStringToUInt(emptyString, &uintValue));
std::string testStringA("0xBADF00D");
ASSERT_TRUE(HexStringToUInt(testStringA, &uintValue));
EXPECT_EQ(0xBADF00Du, uintValue);
std::string testStringB("0xBADFOOD");
EXPECT_FALSE(HexStringToUInt(testStringB, &uintValue));
std::string testStringC("BADF00D");
EXPECT_TRUE(HexStringToUInt(testStringC, &uintValue));
EXPECT_EQ(0xBADF00Du, uintValue);
std::string testStringD("0x BADF00D");
EXPECT_FALSE(HexStringToUInt(testStringD, &uintValue));
}
// Note: ReadFileToString is harder to test
TEST(StringUtilsTest, BeginsEndsWith)
{
ASSERT_FALSE(BeginsWith("foo", "bar"));
ASSERT_FALSE(BeginsWith("", "foo"));
ASSERT_FALSE(BeginsWith("foo", "foobar"));
ASSERT_TRUE(BeginsWith("foobar", "foo"));
ASSERT_TRUE(BeginsWith("foobar", ""));
ASSERT_TRUE(BeginsWith("foo", "foo"));
ASSERT_TRUE(BeginsWith("", ""));
ASSERT_FALSE(EndsWith("foo", "bar"));
ASSERT_FALSE(EndsWith("", "bar"));
ASSERT_FALSE(EndsWith("foo", "foobar"));
ASSERT_TRUE(EndsWith("foobar", "bar"));
ASSERT_TRUE(EndsWith("foobar", ""));
ASSERT_TRUE(EndsWith("bar", "bar"));
ASSERT_TRUE(EndsWith("", ""));
}
}
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