Modern C++ Programming with Test-Driven Development

2.20 The Soundex Class

Since we’re ready to check in, let’s take a look at our solution. We decide that we don’t yet have a compelling reason to split out an implementation (​.cpp​) file, though that might be an essential part of making it production-ready in your system.

#include "gmock/gmock.h"
#include "Soundex.h"
using namespace testing;

class SoundexEncoding: public Test {
public:
   Soundex soundex;
};

TEST_F(SoundexEncoding, RetainsSoleLetterOfOneLetterWord) {
   ASSERT_THAT(soundex.encode("A"), Eq("A000"));
}

TEST_F(SoundexEncoding, PadsWithZerosToEnsureThreeDigits) {
   ASSERT_THAT(soundex.encode("I"), Eq("I000"));
}

TEST_F(SoundexEncoding, ReplacesConsonantsWithAppropriateDigits) ...