json-validator/tests/regex_test.cxx

#include "jvalidate/regex.h"

#include <gmock/gmock.h>
#include <gtest/gtest.h>

using testing::IsEmpty;
using testing::Not;

template <typename T> class RegexEngineTest : public testing::Test {};

using RegexEngines = testing::Types<jvalidate::StdRegexEngine
#if JVALIDATE_HAS_ICU
                                    ,
                                    jvalidate::ICURegexEngine
#endif
                                    >;

TYPED_TEST_SUITE(RegexEngineTest, RegexEngines);

TYPED_TEST(RegexEngineTest, HasEngineName) {
  EXPECT_THAT(TypeParam::engine_name(), Not(IsEmpty()));
}

TYPED_TEST(RegexEngineTest, IsRegexIsNoexceptOnBadRegex) {
  EXPECT_NO_THROW(TypeParam::is_regex("(ABC){1,2"));
  EXPECT_FALSE(TypeParam::is_regex("(ABC){1,2"));
}

TYPED_TEST(RegexEngineTest, IsRegexIsNoexceptOnGoodRegex) {
  EXPECT_NO_THROW(TypeParam::is_regex("(ABC){1,2}"));
  EXPECT_TRUE(TypeParam::is_regex("(ABC){1,2}"));
}

TYPED_TEST(RegexEngineTest, SearchCanMatchSubstring) {
  EXPECT_NO_THROW(TypeParam().search("\\d", "10 dollars"));
  EXPECT_TRUE(TypeParam().search("\\d", "10 dollars"));
}

TYPED_TEST(RegexEngineTest, SearchCanSetBoundaries) {
  EXPECT_NO_THROW(TypeParam().search("^\\d$", "10 dollars"));
  EXPECT_FALSE(TypeParam().search("^\\d$", "10 dollars"));
}

TYPED_TEST(RegexEngineTest, SearchIsNoexceptOnBadRegex) {
  TypeParam engine;
  EXPECT_NO_THROW(engine.search("(ABC){1,2", "ABC"));
  EXPECT_FALSE(engine.search("(ABC){1,2", "ABC"));
  // Repeated calls *can* use a cached result, even if compilation failed
  EXPECT_FALSE(engine.search("(ABC){1,2", "ABC"));
}

#if !defined(JVALIDATE_MONOTEST)
int main(int argc, char ** argv) {
  testing::InitGoogleMock(&argc, argv);
  return RUN_ALL_TESTS();
}
#endif