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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/string_ordinal.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
TEST(StringOrdinalTest, IsValid) {
EXPECT_TRUE(StringOrdinal("b").IsValid());
EXPECT_TRUE(StringOrdinal("ab").IsValid());
EXPECT_FALSE(StringOrdinal("aa").IsValid());
EXPECT_FALSE(StringOrdinal().IsValid());
}
TEST(StringOrdinalTest, LessThan) {
StringOrdinal small_value("b");
StringOrdinal middle_value("n");
StringOrdinal big_value("z");
EXPECT_TRUE(small_value.LessThan(middle_value));
EXPECT_TRUE(small_value.LessThan(big_value));
EXPECT_TRUE(middle_value.LessThan(big_value));
EXPECT_FALSE(big_value.LessThan(small_value));
EXPECT_FALSE(big_value.LessThan(middle_value));
EXPECT_FALSE(middle_value.LessThan(small_value));
}
// Tests the CreateBetween StringOrdinal function by calling
// on the small_value with the large_value as the parameter and
// vice-versa.
void TestCreateBetween(StringOrdinal small_value,
StringOrdinal large_value,
const std::string& expected_result) {
StringOrdinal result = small_value.CreateBetween(large_value);
EXPECT_EQ(expected_result, result.ToString());
result = large_value.CreateBetween(small_value);
EXPECT_EQ(expected_result, result.ToString());
}
TEST(StringOrdinalTest, CreateBetweenSingleDigit) {
TestCreateBetween(StringOrdinal("b"), StringOrdinal("d"), "c");
TestCreateBetween(StringOrdinal("b"), StringOrdinal("e"), "c");
TestCreateBetween(StringOrdinal("b"), StringOrdinal("f"), "d");
TestCreateBetween(StringOrdinal("c"), StringOrdinal("d"), "cn");
}
TEST(StringOrdinalTest, CreateBetweenDifferentLengths) {
TestCreateBetween(StringOrdinal("b"), StringOrdinal("bb"), "ban");
TestCreateBetween(StringOrdinal("b"), StringOrdinal("db"), "c");
TestCreateBetween(StringOrdinal("bz"), StringOrdinal("c"), "bzn");
TestCreateBetween(StringOrdinal("baaaaaab"), StringOrdinal("d"), "c");
TestCreateBetween(StringOrdinal("baaaaaac"), StringOrdinal("d"), "c");
TestCreateBetween(StringOrdinal("b"), StringOrdinal("daaaaaaab"), "c");
}
TEST(StringOrdinalTest, CreateBetweenOverflow) {
TestCreateBetween(StringOrdinal("ab"), StringOrdinal("bb"), "ao");
TestCreateBetween(StringOrdinal("bb"), StringOrdinal("cb"), "bo");
TestCreateBetween(StringOrdinal("bbb"), StringOrdinal("bcb"), "bbo");
TestCreateBetween(StringOrdinal("aab"), StringOrdinal("zzz"), "n");
TestCreateBetween(StringOrdinal("yyy"), StringOrdinal("zzz"), "zml");
TestCreateBetween(StringOrdinal("yab"), StringOrdinal("zzz"), "z");
TestCreateBetween(StringOrdinal("aaz"), StringOrdinal("zzz"), "n");
TestCreateBetween(StringOrdinal("nnnnz"), StringOrdinal("mmmmz"), "n");
}
TEST(StringOrdinalTest, CreateAfter) {
StringOrdinal result = StringOrdinal("y").CreateAfter();
EXPECT_EQ("yn", result.ToString());
result = StringOrdinal("zy").CreateAfter();
EXPECT_EQ("zyn", result.ToString());
result = StringOrdinal("zzzy").CreateAfter();
EXPECT_EQ("zzzyn", result.ToString());
result = StringOrdinal("yy").CreateAfter();
EXPECT_EQ("zl", result.ToString());
result = StringOrdinal("yz").CreateAfter();
EXPECT_EQ("z", result.ToString());
result = StringOrdinal("z").CreateAfter();
EXPECT_EQ("zm", result.ToString());
}
TEST(StringOrdinalTest, CreateBefore) {
StringOrdinal result = StringOrdinal("b").CreateBefore();
EXPECT_EQ("an", result.ToString());
result = StringOrdinal("bb").CreateBefore();
EXPECT_EQ("ao", result.ToString());
result = StringOrdinal("bc").CreateBefore();
EXPECT_EQ("ao", result.ToString());
result = StringOrdinal("bd").CreateBefore();
EXPECT_EQ("ap", result.ToString());
}
TEST(StringOrdinalTest, ToString) {
StringOrdinal index("b");
EXPECT_EQ(index.ToString(), "b");
index = StringOrdinal("aab");
EXPECT_EQ(index.ToString(), "aab");
index = StringOrdinal("zzz");
EXPECT_EQ(index.ToString(), "zzz");
}
} // namespace
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