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/*
* Copyright (C) 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 <array>
#include <string>
#include <gtest/gtest.h>
#include <string.h>
#include "../ExpandableString.h"
TEST(ExpandableString, InitializeAppendRelease) {
const char* kAhoy = "Ahoy!";
struct ExpandableString s;
ExpandableStringInitialize(&s);
EXPECT_TRUE(s.data == NULL);
EXPECT_EQ(s.dataSize, 0u);
EXPECT_TRUE(ExpandableStringAppend(&s, kAhoy));
EXPECT_TRUE(s.data != NULL);
EXPECT_GE(s.dataSize, strlen(kAhoy));
ExpandableStringRelease(&s);
EXPECT_TRUE(s.data == NULL);
EXPECT_GE(s.dataSize, 0u);
}
TEST(ExpandableString, InitializeWriteRelease) {
const char* kAhoy = "Ahoy!";
const char* kMercy = "Mercy, Mercy, Mercy!";
struct ExpandableString s;
ExpandableStringInitialize(&s);
EXPECT_TRUE(s.data == NULL);
EXPECT_EQ(s.dataSize, 0u);
EXPECT_TRUE(ExpandableStringAssign(&s, kAhoy));
EXPECT_TRUE(s.data != NULL);
EXPECT_GE(s.dataSize, strlen(kAhoy));
EXPECT_TRUE(ExpandableStringAssign(&s, kMercy));
EXPECT_TRUE(s.data != NULL);
EXPECT_GE(s.dataSize, strlen(kMercy));
EXPECT_TRUE(ExpandableStringAssign(&s, kAhoy));
EXPECT_TRUE(s.data != NULL);
EXPECT_GE(s.dataSize, strlen(kAhoy));
ExpandableStringRelease(&s);
EXPECT_TRUE(s.data == NULL);
EXPECT_GE(s.dataSize, 0u);
}
class ExpandableStringTestFixture : public :: testing::TestWithParam<size_t> {
protected:
struct ExpandableString expandableString;
};
TEST_P(ExpandableStringTestFixture, AppendTest) {
size_t step = GetParam();
std::array<std::string, 3> inputs = {
std::string(step, 'a'),
std::string(step, 'b'),
std::string(step, 'c'),
};
for (size_t offset = 0; offset < step; ++offset) {
ExpandableStringInitialize(&expandableString);
std::string pad(step - 1u, '_');
EXPECT_TRUE(ExpandableStringAppend(&expandableString, pad.c_str()));
for (size_t i = 0; i < 4096u; ++i) {
const std::string& appendee = inputs[i % inputs.size()];
EXPECT_TRUE(ExpandableStringAppend(&expandableString, appendee.c_str()));
size_t requiredSize = pad.size() + i * step + 1u;
EXPECT_GE(expandableString.dataSize, requiredSize);
}
size_t position = 0u;
for (char c : pad) {
EXPECT_EQ(c, expandableString.data[position]);
position++;
}
for (size_t i = 0; i < 4096; ++i) {
const std::string& expected = inputs[i % inputs.size()];
EXPECT_EQ(0, strncmp(expected.c_str(), expandableString.data + position, expected.size()));
position += expected.size();
}
ExpandableStringRelease(&expandableString);
}
}
INSTANTIATE_TEST_CASE_P(
AppendTest,
ExpandableStringTestFixture,
::testing::Values(
1, 2, 3, 4, 5, 11, 17
));
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