add valgrind memory leak tests; add a memory leak

Author: ianpaulwright

docs/build.md

@@ -1,6 +1,14 @@
 # Overview of the build system
 `datalog-cpp` uses the [CMake](www.cmake.org) build tool to generate build files for other build systems. Currently, building using clang and gcc with Makefiles are supported.
 
+You `valgrind` installed to run memory checks: `sudo apt install valgrind`
+
+To run all regression tests:
+```
+cd tests
+./run_tests.sh
+```
+ 
 # Building with Makefiles
 From the command line inside a git clone, run the following:
 ```

src/CMakeLists.txt

@@ -21,6 +21,9 @@ project("datalog-cpp")
 # specify the C++ standard
 set(CMAKE_CXX_STANDARD 17)
 
+# cpp memory checker
+include (CTest)
+
 # unit-test library
 add_library(tests_main STATIC ../tests/tests_main.cpp)
 
@@ -29,15 +32,18 @@ add_executable(types_test ../tests/types_test.cpp)
 target_include_directories(types_test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(types_test tests_main)
 target_compile_definitions(types_test PUBLIC UNIX)
+add_test(types_test_memory types_test)
 
 # variable_test target
 add_executable(variable_test ../tests/variable_test.cpp)
 target_include_directories(variable_test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(variable_test tests_main)
 target_compile_definitions(variable_test PUBLIC UNIX)
+add_test(variable_test_memory variable_test)
 
 # tuple_binding_test target
 add_executable(tuple_binding_test ../tests/tuple_binding_test.cpp)
 target_include_directories(tuple_binding_test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(tuple_binding_test tests_main)
 target_compile_definitions(tuple_binding_test PUBLIC UNIX)
+add_test(tuple_binding_test_memory tuple_binding_test)

tests/run_tests.sh

@@ -1,5 +1,8 @@
 #!/bin/bash
 set -e
+echo "Running tests"
 ../build/types_test
 ../build/variable_test
-../build/tuple_binding_test
+../build/tuple_binding_test
+echo "Checking for memory leaks"
+cd ../build; ctest --overwrite MemoryCheckCommandOptions="--leak-check=full --error-exitcode=1" -T memcheck

tests/tuple_binding_test.cpp

@@ -15,7 +15,14 @@ bool unbindTest()
     return returnVal;
 }
 
+bool leakTest() {
+    double* leak = new double[10];
+    std::cout << "Hello!" << std::endl;
+    return true;
+}
+
 TEST_CASE("tuple binding test", "[tuple-binding]")
 {
     REQUIRE(unbindTest());
+    REQUIRE(leakTest());
 }