#include "edit_distance.h"
#include "test.h"
TEST(EditDistanceTest, TestEmpty) {
EXPECT_EQ(5, EditDistance("", "ninja"));
EXPECT_EQ(5, EditDistance("ninja", ""));
EXPECT_EQ(0, EditDistance("", ""));
}
TEST(EditDistanceTest, TestMaxDistance) {
const bool allow_replacements = true;
for (int max_distance = 1; max_distance < 7; ++max_distance) {
EXPECT_EQ(max_distance + 1,
EditDistance("abcdefghijklmnop", "ponmlkjihgfedcba",
allow_replacements, max_distance));
}
}
TEST(EditDistanceTest, TestAllowReplacements) {
bool allow_replacements = true;
EXPECT_EQ(1, EditDistance("ninja", "njnja", allow_replacements));
EXPECT_EQ(1, EditDistance("njnja", "ninja", allow_replacements));
allow_replacements = false;
EXPECT_EQ(2, EditDistance("ninja", "njnja", allow_replacements));
EXPECT_EQ(2, EditDistance("njnja", "ninja", allow_replacements));
}
TEST(EditDistanceTest, TestBasics) {
EXPECT_EQ(0, EditDistance("browser_tests", "browser_tests"));
EXPECT_EQ(1, EditDistance("browser_test", "browser_tests"));
EXPECT_EQ(1, EditDistance("browser_tests", "browser_test"));
}