adding first version of testing code example

.gitignore

+*~
\ No newline at end of file

Makefile

+SRC=src/main.cpp
+TESTS=tests
+COV=coverage
+OUT_T=test_output
+OUT_E=expected_output
+APP=program
+CXX=g++
+BROWSER=google-chrome
+
+# Default
+all: distclean compile test
+
+# Compiling section
+compile:
+	$(CXX) -o $(APP) $(SRC)
+
+compile_coverage:
+	$(CXX) -o $(APP) --coverage $(SRC)
+
+# Testing section
+test: simple_tests regression_test unit_tests
+
+simple_tests:
+	./$(APP) 1 4 2
+	./$(APP) 2 4 2
+	./$(APP) 4 4 2
+
+regression_test:
+	./$(APP) 1 4 2 | tail -n 1 > $(OUT_T)
+	echo "c=6" > $(OUT_E)
+	diff $(OUT_T) $(OUT_E)
+
+unit_tests:
+	cd $(TESTS) && cmake CMakeLists.txt && make
+	./$(TESTS)/runTests
+
+# Coverage section
+coverage: clean clean_coverage compile_coverage simple_tests
+	lcov -t "result" -o $(APP).info -c -d .
+	genhtml -o $(COV) $(APP).info
+
+show_cov: coverage
+	$(BROWSER) $(COV)/index.html
+
+# Cleaning section
+distclean: clean clean_tests clean_coverage
+
+.PHONY: clean
+clean:
+	rm -f $(APP)
+
+clean_tests:
+	rm -rf $(TESTS)/CMakeFiles $(TESTS)/CMakeCache.txt $(TESTS)/cmake_install.cmake $(TESTS)/CMakeFiles $(TESTS)/runTests $(OUT_E) $(OUT_T)
+
+clean_coverage:
+	rm -rf *.gcno *.gcda $(APP).info $(COV)
+
+

src/funcs.cpp

+#include<iostream>
+using namespace std;
+
+int add(int a,int b){return a+b;}
+int sub(int a,int b){return a-b;}
+int mul(int a,int b){return a*b;}
+int  dv(int a,int b){
+           if (b!=0) return a/b;
+           else      return   0;}

src/main.cpp

+#include "funcs.cpp"
+using namespace std;
+
+int main(int argc, char *argv[])
+{
+ int op=atoi(argv[1]);
+ int a= atoi(argv[2]);
+ int b= atoi(argv[3]);
+ printf("op=%d; a=%d; b=%d\n", op, a, b);
+ int c;
+ switch(op)
+ {
+  case 1: c=add(a,b); break;
+  case 2: c=sub(a,b); break;
+  case 3: c=mul(a,b); break;
+  case 4: c= dv(a,b); break;
+  default: c=0;
+ }
+ printf("c=%d\n", c);
+ return 0;
+}

tests/CMakeLists.txt

+cmake_minimum_required(VERSION 2.6)
+
+# Locate GTest
+find_package(GTest REQUIRED)
+include_directories(${GTEST_INCLUDE_DIRS})
+
+# Link runTests with what we want to test and the GTest and pthread library
+add_executable(runTests test_funcs.cpp)
+target_link_libraries(runTests ${GTEST_LIBRARIES} pthread)

tests/Makefile

+# CMAKE generated file: DO NOT EDIT!
+# Generated by "Unix Makefiles" Generator, CMake Version 3.12
+
+# Default target executed when no arguments are given to make.
+default_target: all
+
+.PHONY : default_target
+
+# Allow only one "make -f Makefile2" at a time, but pass parallelism.
+.NOTPARALLEL:
+
+
+#=============================================================================
+# Special targets provided by cmake.
+
+# Disable implicit rules so canonical targets will work.
+.SUFFIXES:
+
+
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+SUFFIXES =
+
+.SUFFIXES: .hpux_make_needs_suffix_list
+
+
+# Suppress display of executed commands.
+$(VERBOSE).SILENT:
+
+
+# A target that is always out of date.
+cmake_force:
+
+.PHONY : cmake_force
+
+#=============================================================================
+# Set environment variables for the build.
+
+# The shell in which to execute make rules.
+SHELL = /bin/sh
+
+# The CMake executable.
+CMAKE_COMMAND = /usr/bin/cmake
+
+# The command to remove a file.
+RM = /usr/bin/cmake -E remove -f
+
+# Escaping for special characters.
+EQUALS = =
+
+# The top-level source directory on which CMake was run.
+CMAKE_SOURCE_DIR = /home/sluka/Work/testing_example/tests
+
+# The top-level build directory on which CMake was run.
+CMAKE_BINARY_DIR = /home/sluka/Work/testing_example/tests
+
+#=============================================================================
+# Targets provided globally by CMake.
+
+# Special rule for the target rebuild_cache
+rebuild_cache:
+	@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --cyan "Running CMake to regenerate build system..."
+	/usr/bin/cmake -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR)
+.PHONY : rebuild_cache
+
+# Special rule for the target rebuild_cache
+rebuild_cache/fast: rebuild_cache
+
+.PHONY : rebuild_cache/fast
+
+# Special rule for the target edit_cache
+edit_cache:
+	@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --cyan "Running CMake cache editor..."
+	/usr/bin/ccmake -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR)
+.PHONY : edit_cache
+
+# Special rule for the target edit_cache
+edit_cache/fast: edit_cache
+
+.PHONY : edit_cache/fast
+
+# The main all target
+all: cmake_check_build_system
+	$(CMAKE_COMMAND) -E cmake_progress_start /home/sluka/Work/testing_example/tests/CMakeFiles /home/sluka/Work/testing_example/tests/CMakeFiles/progress.marks
+	$(MAKE) -f CMakeFiles/Makefile2 all
+	$(CMAKE_COMMAND) -E cmake_progress_start /home/sluka/Work/testing_example/tests/CMakeFiles 0
+.PHONY : all
+
+# The main clean target
+clean:
+	$(MAKE) -f CMakeFiles/Makefile2 clean
+.PHONY : clean
+
+# The main clean target
+clean/fast: clean
+
+.PHONY : clean/fast
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+# Prepare targets for installation.
+preinstall: all
+	$(MAKE) -f CMakeFiles/Makefile2 preinstall
+.PHONY : preinstall
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+# Prepare targets for installation.
+preinstall/fast:
+	$(MAKE) -f CMakeFiles/Makefile2 preinstall
+.PHONY : preinstall/fast
+
+# clear depends
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+	$(CMAKE_COMMAND) -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR) --check-build-system CMakeFiles/Makefile.cmake 1
+.PHONY : depend
+
+#=============================================================================
+# Target rules for targets named runTests
+
+# Build rule for target.
+runTests: cmake_check_build_system
+	$(MAKE) -f CMakeFiles/Makefile2 runTests
+.PHONY : runTests
+
+# fast build rule for target.
+runTests/fast:
+	$(MAKE) -f CMakeFiles/runTests.dir/build.make CMakeFiles/runTests.dir/build
+.PHONY : runTests/fast
+
+test_funcs.o: test_funcs.cpp.o
+
+.PHONY : test_funcs.o
+
+# target to build an object file
+test_funcs.cpp.o:
+	$(MAKE) -f CMakeFiles/runTests.dir/build.make CMakeFiles/runTests.dir/test_funcs.cpp.o
+.PHONY : test_funcs.cpp.o
+
+test_funcs.i: test_funcs.cpp.i
+
+.PHONY : test_funcs.i
+
+# target to preprocess a source file
+test_funcs.cpp.i:
+	$(MAKE) -f CMakeFiles/runTests.dir/build.make CMakeFiles/runTests.dir/test_funcs.cpp.i
+.PHONY : test_funcs.cpp.i
+
+test_funcs.s: test_funcs.cpp.s
+
+.PHONY : test_funcs.s
+
+# target to generate assembly for a file
+test_funcs.cpp.s:
+	$(MAKE) -f CMakeFiles/runTests.dir/build.make CMakeFiles/runTests.dir/test_funcs.cpp.s
+.PHONY : test_funcs.cpp.s
+
+# Help Target
+help:
+	@echo "The following are some of the valid targets for this Makefile:"
+	@echo "... all (the default if no target is provided)"
+	@echo "... clean"
+	@echo "... depend"
+	@echo "... rebuild_cache"
+	@echo "... runTests"
+	@echo "... edit_cache"
+	@echo "... test_funcs.o"
+	@echo "... test_funcs.i"
+	@echo "... test_funcs.s"
+.PHONY : help
+
+
+
+#=============================================================================
+# Special targets to cleanup operation of make.
+
+# Special rule to run CMake to check the build system integrity.
+# No rule that depends on this can have commands that come from listfiles
+# because they might be regenerated.
+cmake_check_build_system:
+	$(CMAKE_COMMAND) -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR) --check-build-system CMakeFiles/Makefile.cmake 0
+.PHONY : cmake_check_build_system
+

tests/test_funcs.cpp

+#include "gtest/gtest.h"
+#include "../src/funcs.cpp"
+
+TEST(FuncsTest,Add){
+ EXPECT_EQ(6,add(4,2));
+};
+TEST(FuncsTest,Sub){
+ EXPECT_EQ(2,sub(4,2));
+};
+TEST(FuncsTest,Mul){
+ EXPECT_EQ(8,mul(4,2));
+};
+TEST(FuncsTest,Div){
+ EXPECT_EQ(2,dv(4,2));
+};
+
+int main(int argc,char**argv)
+{
+ testing::InitGoogleTest(&argc, argv);
+ return RUN_ALL_TESTS();
+}