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swift-mirror/unittests/Basic/StringExtrasTest.cpp

99 lines
2.7 KiB
C++

#include "swift/Basic/StringExtras.h"
#include "gtest/gtest.h"
#include <algorithm>
using namespace swift;
TEST(CamelCaseWordsTest, Iteration) {
auto words = camel_case::getWords("URLByPrependingHTTPToURL");
// Forward iteration count.
EXPECT_EQ(6, std::distance(words.begin(), words.end()));
// Reverse iteration count.
EXPECT_EQ(6, std::distance(words.rbegin(), words.rend()));
// Iteration contents.
auto iter = words.begin();
EXPECT_EQ(*iter, "URL");
// Stepping forward.
++iter;
EXPECT_EQ(*iter, "By");
// Immediately stepping back (fast path).
--iter;
EXPECT_EQ(*iter, "URL");
// Immediately stepping forward (fast path).
++iter;
EXPECT_EQ(*iter, "By");
// Stepping forward.
++iter;
EXPECT_EQ(*iter, "Prepending");
// Stepping back twice (slow path).
--iter;
--iter;
EXPECT_EQ(*iter, "URL");
// Stepping forward to visit the remaining elements.
++iter;
EXPECT_EQ(*iter, "By");
++iter;
EXPECT_EQ(*iter, "Prepending");
++iter;
EXPECT_EQ(*iter, "HTTP");
++iter;
EXPECT_EQ(*iter, "To");
++iter;
EXPECT_EQ(*iter, "URL");
// We're done.
++iter;
EXPECT_EQ(iter, words.end());
}
TEST(ToLowercaseTest, Words) {
llvm::SmallString<64> scratch;
EXPECT_EQ(camel_case::toLowercaseWord("By", scratch), "by");
EXPECT_EQ(camel_case::toLowercaseWord("and", scratch), "and");
EXPECT_EQ(camel_case::toLowercaseWord("A", scratch), "a");
EXPECT_EQ(camel_case::toLowercaseWord("URL", scratch), "URL");
EXPECT_EQ(camel_case::toLowercaseWord("", scratch), "");
}
TEST(ToSentencecaseTest, Words) {
llvm::SmallString<64> scratch;
EXPECT_EQ(camel_case::toSentencecase("by", scratch), "By");
EXPECT_EQ(camel_case::toSentencecase("a", scratch), "A");
EXPECT_EQ(camel_case::toSentencecase("URL", scratch), "URL");
EXPECT_EQ(camel_case::toSentencecase("", scratch), "");
}
TEST(MultiWordsTest, Match) {
camel_case::MultiWordMap multiWords;
multiWords.insert("attributed", "string");
multiWords.insert("table", "view");
multiWords.insert("table", "view", "controller");
multiWords.insert("table", "top");
auto words1 = camel_case::getWords("createTableView");
EXPECT_EQ(*multiWords.match(words1.rbegin(), words1.rend()), "Table");
auto words2 = camel_case::getWords("createTableViewController");
EXPECT_EQ(*multiWords.match(words2.rbegin(), words2.rend()), "Table");
auto words3 = camel_case::getWords("createSubview");
EXPECT_EQ(*multiWords.match(words3.rbegin(), words3.rend()), "Subview");
auto words4 = camel_case::getWords("addView");
EXPECT_EQ(*multiWords.match(words4.rbegin(), words4.rend()), "View");
auto words5 = camel_case::getWords("insertAttributedString");
EXPECT_EQ(*multiWords.match(words5.rbegin(), words5.rend()), "Attributed");
}