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// Copyright 2020 The Android Open Source Project
//
// 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 "base/StringFormat.h"
#include <gtest/gtest.h>
namespace android {
namespace base {
TEST(StringFormat, EmptyString) {
std::string s = StringFormat("");
EXPECT_TRUE(s.empty());
EXPECT_STREQ("", s.c_str());
}
TEST(StringFormat, SimpleString) {
std::string s = StringFormat("foobar");
EXPECT_STREQ("foobar", s.c_str());
}
TEST(StringFormat, SimpleDecimal) {
std::string s = StringFormat("Pi is about %d.%d\n", 3, 1415);
EXPECT_STREQ("Pi is about 3.1415\n", s.c_str());
}
TEST(StringFormat, VeryLongString) {
static const char kPiece[] = "A hospital bed is a parked taxi with the meter running - Groucho Marx. ";
const size_t kPieceLen = sizeof(kPiece) - 1U;
std::string s = StringFormat("%s%s%s%s%s%s%s", kPiece, kPiece, kPiece,
kPiece, kPiece, kPiece, kPiece);
EXPECT_EQ(7U * kPieceLen, s.size());
for (size_t n = 0; n < 7U; ++n) {
std::string s2 = std::string(s.c_str() + n * kPieceLen, kPieceLen);
EXPECT_STREQ(kPiece, s2.c_str()) << "Index #" << n;
}
}
TEST(StringAppendFormat, EmptyString) {
std::string s = "foo";
StringAppendFormat(&s, "");
EXPECT_EQ(3U, s.size());
EXPECT_STREQ("foo", s.c_str());
}
TEST(StringAppendFormat, SimpleString) {
std::string s = "foo";
StringAppendFormat(&s, "bar");
EXPECT_EQ(6U, s.size());
EXPECT_STREQ("foobar", s.c_str());
}
TEST(StringAppendFormat, VeryLongString) {
static const char kPiece[] = "A hospital bed is a parked taxi with the meter running - Groucho Marx. ";
const size_t kPieceLen = sizeof(kPiece) - 1U;
const size_t kCount = 12;
std::string s;
for (size_t n = 0; n < kCount; ++n) {
StringAppendFormat(&s, "%s", kPiece);
}
EXPECT_EQ(kCount * kPieceLen, s.size());
for (size_t n = 0; n < kCount; ++n) {
std::string s2 = std::string(s.c_str() + n * kPieceLen, kPieceLen);
EXPECT_STREQ(kPiece, s2.c_str()) << "Index #" << n;
}
}
} // namespace base
} // namespace android
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