[PATCH olang v2 3/3] tests: build: add parallelization support for unit tests

[Johnny Richard <johnny@johnnyrichard.com>]

Removes inline shell script and enable test execution by target on make.

Now we should be able to execute tests with more jobs (make -j<n-of-jobs>)

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>
---
 Makefile            |  9 +++------
 tests/unit/Makefile | 40 ++++++++++++++++++----------------------
 2 files changed, 21 insertions(+), 28 deletions(-)

diff --git a/Makefile b/Makefile
index 7dbde3e..3a799ae 100644
--- a/Makefile
+++ b/Makefile
@@ -93,9 +93,8 @@ format-fix: $(SRCS) $(HEADERS)
 check-olc: $(TARGET)
 	$(MAKE) -C tests/olc/
 
-.PHONY: unit-test
-unit-test:
-	$(MAKE)
+.PHONY: check-unit
+check-unit: $(TARGET)
 	$(MAKE) -C tests/unit/
 
 .PHONY: clean
@@ -105,9 +104,7 @@ clean:
 	@rm -rf build/ $(TARGET)
 
 .PHONY: check
-check: check-olc
-	$(MAKE)
-	$(MAKE) -C tests/unit/
+check: check-unit check-olc
 
 .PHONY: docs
 docs:
diff --git a/tests/unit/Makefile b/tests/unit/Makefile
index 783225c..686938f 100644
--- a/tests/unit/Makefile
+++ b/tests/unit/Makefile
@@ -1,33 +1,29 @@
-SRCS         := $(wildcard *_test.c)
-OBJS         := $(patsubst %_test.c, %_test.o, $(SRCS))
-SUBJECT_OBJS := $(filter-out ../../build/main.o, $(wildcard ../../build/*.o))
-CFLAGS       := -I../../src -I../shared
-TESTS        := $(patsubst %_test.c, %_test, $(SRCS))
-EXEC_TESTS   := $(patsubst %_test, ./%_test, $(TESTS))
-MUNIT_SRC    := ../shared/munit.c
-MUNIT        := ./munit.o
+SRCS := $(wildcard *.c)
+DEP_OBJS := $(filter-out ../../build/main.o, $(wildcard ../../build/*.o))
+CFLAGS := -I../../src -I../shared
+TESTS := $(patsubst %.c, %.bin, $(SRCS))
+RUN_TESTS := $(patsubst %.bin, %.run, $(TESTS))
+MUNIT_SRC := ../shared/munit.c
+MUNIT := ./munit.o
 
-.PHONY: all
-all: $(MUNIT) $(TESTS)
-	@for file in $(EXEC_TESTS); do \
-                ./"$$file"; \
-        done
+.PHONY: all clean format format-fix
+all: $(RUN_TESTS)
+
+%.bin: %.c $(MUNIT)
+	@$(CC) $(CFLAGS) $(MUNIT) $(DEP_OBJS) $< -o $@
+
+%.run: %.bin
+	@./$<
 
-.PHONY: clean
 clean:
-	$(RM) *.o *_test
-	$(RM) -rfv lib
+	@$(RM) *.o *.bin
+	@$(RM) -rfv lib
 
-.PHONY: format
 format: $(SRCS)
 	clang-format --dry-run --Werror $?
 
-.PHONY: format-fix
 format-fix: $(SRCS)
 	clang-format -i $?
 
-%_test: $(MUNIT) $(SUBJECT_OBJS) %_test.c
-	$(CC) $? $(CFLAGS) -o $@
-
 $(MUNIT):
-	$(CC) -c $(MUNIT_SRC) $(CFLAGS) -o $(MUNIT)
+	@$(CC) -c $(MUNIT_SRC) $(CFLAGS) -o $(MUNIT)
-- 
2.46.0