Include full c source to assert static objects

To assert static objects, we either have to add a method into the
object under test itself and recompile on a test run with the activated test
method (but also recompile after tests, so that method is gone on
release builds).

Alternatively we can include the whole .c file in our test
infrastructure and save the object in the test directory. So there's no
necessity to clean it up prior to a release build and it's contained
away.

This requires, that the test folder isn't excluded in coveralls.

.travis.yml

@@ -33,7 +33,7 @@ matrix:
   include:
     - compiler: gcc
       after_success:
-        - coveralls --exclude 'test'
+        - coveralls
     - compiler: clang
       after_success:
-        - coveralls --exclude 'test' --gcov llvm-cov --gcov-options gcov
+        - coveralls --gcov llvm-cov --gcov-options gcov

Makefile

@@ -96,8 +96,11 @@ test-coverage-report: test-coverage
 		--html-details \
 		-o docs/internal/coverage/index.html
 
+test/%.o: test/%.c src/%.c
+	${CC} -o $@ -c $< ${CFLAGS}
+
 test/test: ${OBJ} ${TEST_OBJ}
-	${CC} -o ${@} ${TEST_OBJ} ${OBJ} ${CFLAGS} ${LDFLAGS}
+	${CC} -o ${@} ${TEST_OBJ} $(filter-out ${TEST_OBJ:test/%=src/%},${OBJ}) ${CFLAGS} ${LDFLAGS}
 
 .PHONY: doc doc-doxygen
 doc: docs/dunst.1

test/icon.c

@@ -1,9 +1,5 @@
+#include "../src/icon.c"
 #include "greatest.h"
-#include "../src/icon.h"
-#include "../src/utils.h"
-
-#include <gdk-pixbuf/gdk-pixbuf.h>
-#include <glib.h>
 
 #define ICONPREFIX "/data/icons/path"
 

test/markup.c

@@ -1,10 +1,6 @@
+#include "src/markup.c"
 #include "greatest.h"
 
-#include <stdbool.h>
-#include <glib.h>
-
-#include "src/markup.h"
-
 TEST test_markup_strip(void)
 {
         char *ptr;

test/notification.c

@@ -1,10 +1,9 @@
+#include "src/notification.c"
 #include "greatest.h"
-#include "src/notification.h"
+
 #include "src/option_parser.h"
 #include "src/settings.h"
 
-#include <glib.h>
-
 TEST test_notification_is_duplicate_field(char **field,
                                           struct notification *a,
                                           struct notification *b)

test/option_parser.c

@@ -1,10 +1,6 @@
+#include "src/option_parser.c"
 #include "greatest.h"
 
-#include <stdbool.h>
-#include <glib.h>
-
-#include "src/option_parser.h"
-
 TEST test_next_section(void)
 {
         const char *section = NULL;

test/utils.c

@@ -1,7 +1,5 @@
+#include "src/utils.c"
 #include "greatest.h"
-#include "src/utils.h"
-
-#include <glib.h>
 
 TEST test_string_replace_char(void)
 {