use ctest to run unit tests in parallel (requires newer catch2)

.github/workflows/main.yml

@@ -25,5 +25,7 @@ jobs:
             ${{ github.workspace }}/build/
             ${{ github.workspace }}/build_qt/lcov/
             ${{ github.workspace }}/build_qt/decn.c.gcov
+            ${{ github.workspace }}/build_qt/Testing/
             ${{ github.workspace }}/main.hex
           if-no-files-found: error
+

CMakeLists.txt

@@ -18,6 +18,9 @@ else()
 	add_compile_options(-Wall -Wextra -pedantic)
 endif()
 
+# CTest Catch2 tests
+enable_testing()
+
 # Directory with source code
 add_subdirectory(src)
 add_subdirectory(qt_gui)

Dockerfile

@@ -2,7 +2,6 @@ FROM ubuntu:18.04
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
 	build-essential \
-	catch \
 	clang \
 	cmake \
 	git \
@@ -13,4 +12,10 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
 	ninja-build \
 	qtdeclarative5-dev \
 	sdcc=3.5.0+dfsg-2build1 \
-	vim-tiny
+	vim-tiny \
+	wget
+
+# install more up-to-date catch2
+RUN wget http://mirrors.kernel.org/ubuntu/pool/universe/c/catch2/catch2_2.13.0-1_all.deb
+RUN echo "1d501c7f817cfcd46dd1b79edc10896d catch2_2.13.0-1_all.deb" | md5sum --check --
+RUN dpkg -i catch2_2.13.0-1_all.deb

src/decn/CMakeLists.txt

@@ -1,11 +1,3 @@
-add_library(Catch INTERFACE)
-if(EXISTS /usr/include/catch/catch.hpp)
-target_include_directories(Catch INTERFACE /usr/include/catch)
-elseif(EXISTS /usr/include/catch2/catch.hpp)
-target_include_directories(Catch INTERFACE /usr/include/catch2)
-else()
-endif()
-
 #code coverage
 add_library(coverage_config INTERFACE)
 target_compile_options(coverage_config INTERFACE -O0 -g --coverage)
@@ -18,11 +10,35 @@ add_library(decn decn.c ../utils.c)
 add_library(decn_cover decn.c)
 target_link_libraries(decn_cover PUBLIC coverage_config)
 
-add_executable(decn_test decn_test.c ../utils.c)
-target_link_libraries(decn_test decn_cover coverage_config Catch)
+# old tests (compare output with reference "golden" output file)
+add_executable(decn_test
+	decn_test.c
+	../utils.c
+)
+target_link_libraries(decn_test
+	decn_cover
+	coverage_config
+)
 
-add_executable(decn_tests catch_main.cpp decn_tests.cpp decn_tests_trig.cpp ../utils.c)
-target_link_libraries(decn_tests decn_cover coverage_config mpfr Catch)
+# catch2 unit tests
+find_package(Catch2 REQUIRED)
+enable_testing()
+set (BUILD_TESTING ON)
+add_executable(decn_tests
+	catch_main.cpp
+	decn_tests.cpp
+	decn_tests_trig.cpp
+	../utils.c
+)
+target_link_libraries(decn_tests
+	mpfr
+	decn_cover
+	coverage_config
+	Catch2::Catch2
+)
+include(CTest)
+include(Catch)
+catch_discover_tests(decn_tests)
 
 # decn prototyping
 add_subdirectory(proto)

src/decn/catch_main.cpp

@@ -21,4 +21,4 @@
 
 
 #define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do this in one cpp file
-#include "catch.hpp"
+#include <catch2/catch.hpp>

src/decn/decn_tests.cpp

@@ -23,7 +23,7 @@
 #include <string>
 #include <random>
 #include <boost/multiprecision/mpfr.hpp>
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 #include "decn.h"
 #include "../utils.h"
 
@@ -31,7 +31,7 @@
 namespace bmp = boost::multiprecision;
 using Catch::Matchers::Equals;
 
-static const int NUM_RAND_TESTS = 1234567;
+static const int NUM_RAND_TESTS = 123456;
 
 
 TEST_CASE("build decn"){
@@ -570,10 +570,16 @@ static void log_test_near1(int lsu0_low, int lsu0_high, int exp){
 	}
 }
 
-TEST_CASE("log random near 1"){
+TEST_CASE("log random 0 to 0.99..."){
 	log_test_near1(0,  99, -1);
+}
+TEST_CASE("log random 0.8 to 0.99..."){
 	log_test_near1(80, 99, -1);
+}
+TEST_CASE("log random 1.0 to 9.9"){
 	log_test_near1(10, 99, 0);
+}
+TEST_CASE("log random 1.0 to 2.0"){
 	log_test_near1(10, 20, 0);
 }
 

src/decn/decn_tests_trig.cpp

@@ -1,7 +1,7 @@
 
 #include <string>
 #include <boost/multiprecision/mpfr.hpp>
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 #include "decn.h"
 namespace bmp = boost::multiprecision;
 using Catch::Matchers::Equals;

steps/desktop_build_check.sh

@@ -17,11 +17,13 @@ cmake .. -GNinja
 ninja
 
 # run tests
-src/decn/decn_tests
+ctest -j $(nproc)
 
 # get coverage
 echo "Running lcov"
 lcov --capture --directory src/decn --output-file coverage.info
+lcov --remove coverage.info "/usr/*" --output-file coverage.info
 genhtml coverage.info --output-directory lcov
 echo "Running gcov"
 gcov -b src/decn/CMakeFiles/decn_cover.dir/decn.c.gcno
+