diff --git a/cpp/anagram/CMakeLists.txt b/cpp/anagram/CMakeLists.txt new file mode 100644 index 0000000..95c7011 --- /dev/null +++ b/cpp/anagram/CMakeLists.txt @@ -0,0 +1,52 @@ +# Get the exercise name from the current directory +get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME) + +# Basic CMake project +cmake_minimum_required(VERSION 2.8.11) + +# Name the project after the exercise +project(${exercise} CXX) + +# Locate Boost libraries: unit_test_framework, date_time and regex +set(Boost_USE_STATIC_LIBS ON) +set(Boost_USE_MULTITHREADED ON) +set(Boost_USE_STATIC_RUNTIME OFF) +find_package(Boost 1.55 REQUIRED COMPONENTS unit_test_framework date_time regex) + +# Enable C++11 features on gcc/clang +if("${CMAKE_CXX_COMPILER_ID}" MATCHES "(GNU|Clang)") + set(CMAKE_CXX_FLAGS "-std=c++11") +endif() + +# Configure to run all the tests? +if(${EXERCISM_RUN_ALL_TESTS}) + add_definitions(-DEXERCISM_RUN_ALL_TESTS) +endif() + +# Get a source filename from the exercise name by replacing -'s with _'s +string(REPLACE "-" "_" file ${exercise}) + +# Implementation could be only a header +if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${file}.cpp) + set(exercise_cpp ${file}.cpp) +else() + set(exercise_cpp "") +endif() + +# Build executable from sources and headers +add_executable(${exercise} ${file}_test.cpp ${exercise_cpp} ${file}.h) + +# We need boost includes +target_include_directories(${exercise} PRIVATE ${Boost_INCLUDE_DIRS}) + +# We need boost libraries +target_link_libraries(${exercise} ${Boost_LIBRARIES}) + +# Tell MSVC not to warn us about unchecked iterators in debug builds +if(${MSVC}) + set_target_properties(${exercise} PROPERTIES + COMPILE_DEFINITIONS_DEBUG _SCL_SECURE_NO_WARNINGS) +endif() + +# Run the tests on every build +add_custom_command(TARGET ${exercise} POST_BUILD COMMAND ${exercise}) diff --git a/cpp/anagram/README.md b/cpp/anagram/README.md new file mode 100644 index 0000000..7c9c069 --- /dev/null +++ b/cpp/anagram/README.md @@ -0,0 +1,43 @@ +# Anagram + +Write a program that, given a word and a list of possible anagrams, selects the correct sublist. + +Given `"listen"` and a list of candidates like `"enlists" "google" +"inlets" "banana"` the program should return a list containing +`"inlets"`. + +## Getting Started + +Make sure you have read the [getting started with C++](http://help.exercism.io/getting-started-with-cpp.html) +page on the [exercism help site](http://help.exercism.io/). This covers +the basic information on setting up the development environment expected +by the exercises. + +## Passing the Tests + +Get the first test compiling, linking and passing by following the [three +rules of test-driven development](http://butunclebob.com/ArticleS.UncleBob.TheThreeRulesOfTdd). +Create just enough structure by declaring namespaces, functions, classes, +etc., to satisfy any compiler errors and get the test to fail. Then write +just enough code to get the test to pass. Once you've done that, +uncomment the next test by moving the following line past the next test. + +```C++ +#if defined(EXERCISM_RUN_ALL_TESTS) +``` + +This may result in compile errors as new constructs may be invoked that +you haven't yet declared or defined. Again, fix the compile errors minimally +to get a failing test, then change the code minimally to pass the test, +refactor your implementation for readability and expressiveness and then +go on to the next test. + +Try to use standard C++11 facilities in preference to writing your own +low-level algorithms or facilities by hand. [CppReference](http://en.cppreference.com/) +is a wiki reference to the C++ language and standard library. If you +are new to C++, but have programmed in C, beware of +[C traps and pitfalls](http://www.slideshare.net/LegalizeAdulthood/c-traps-and-pitfalls-for-c-programmers). + +## Source + +Inspired by the Extreme Startup game [view source](https://github.com/rchatley/extreme_startup) diff --git a/cpp/anagram/anagram_test.cpp b/cpp/anagram/anagram_test.cpp new file mode 100644 index 0000000..7fa7049 --- /dev/null +++ b/cpp/anagram/anagram_test.cpp @@ -0,0 +1,97 @@ +#include "anagram.h" +#define BOOST_TEST_MAIN +#include + +using namespace std; + +BOOST_AUTO_TEST_CASE(no_matches) +{ + auto subject = anagram::anagram("diaper"); + auto matches = subject.matches({"hello", "world", "zombies", "pants"}); + vector expected; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +#if defined(EXERCISM_RUN_ALL_TESTS) +BOOST_AUTO_TEST_CASE(detects_simple_anagram) +{ + auto subject = anagram::anagram("ant"); + auto matches = subject.matches({"tan", "stand", "at"}); + vector expected{"tan"}; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(does_not_detect_false_positives) +{ + auto subject = anagram::anagram("galea"); + auto matches = subject.matches({"eagle"}); + vector expected; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(detects_multiple_anagrams) +{ + auto subject = anagram::anagram("master"); + auto matches = subject.matches({"stream", "pigeon", "maters"}); + vector expected{"stream", "maters"}; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(does_not_detect_anagram_subsets) +{ + auto subject = anagram::anagram("good"); + auto matches = subject.matches({"dog", "goody"}); + vector expected; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(detects_anagram) +{ + auto subject = anagram::anagram("listen"); + auto matches = subject.matches({"enlists", "google", "inlets", "banana"}); + vector expected{"inlets"}; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(detects_multiple_anagrams2) +{ + auto subject = anagram::anagram("allergy"); + auto matches = subject.matches({"gallery", "ballerina", "regally", "clergy", "largely", "leading"}); + vector expected{"gallery", "regally", "largely"}; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(detects_anagrams_case_insensitively) +{ + auto subject = anagram::anagram("Orchestra"); + auto matches = subject.matches({"cashregister", "Carthorse", "radishes"}); + vector expected{"Carthorse"}; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(does_not_detect_a_word_as_its_own_anagram) +{ + auto subject = anagram::anagram("banana"); + auto matches = subject.matches({"Banana"}); + vector expected; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} + +BOOST_AUTO_TEST_CASE(matches_accepts_string_arguments) +{ + auto subject = anagram::anagram("ant"); + auto matches = subject.matches({"stand", "tan", "at"}); + vector expected{"tan"}; + + BOOST_REQUIRE_EQUAL_COLLECTIONS(expected.begin(), expected.end(), matches.begin(), matches.end()); +} +#endif