Evas tests: Add canvas free with ref tests.

This should check test for the issue fixed in:
bb4a19b5ad
8bba92fbca

src/Makefile_Evas.am

@@ -1582,6 +1582,7 @@ TESTS += tests/evas/evas_suite
 tests_evas_evas_suite_SOURCES = \
 tests/evas/evas_suite.c \
 tests/evas/evas_test_init.c \
+tests/evas/evas_test_object.c \
 tests/evas/evas_test_textblock.c \
 tests/evas/evas_test_text.c \
 tests/evas/evas_test_callbacks.c \

src/tests/evas/evas_suite.c

@@ -19,6 +19,7 @@ struct _Evas_Test_Case
 
 static const Evas_Test_Case etc[] = {
   { "Evas", evas_test_init },
+  { "Object", evas_test_object },
   { "Object Textblock", evas_test_textblock },
   { "Object Text", evas_test_text },
   { "Callbacks", evas_test_callbacks },

src/tests/evas/evas_suite.h

@@ -4,6 +4,7 @@
 #include <check.h>
 
 void evas_test_init(TCase *tc);
+void evas_test_object(TCase *tc);
 void evas_test_textblock(TCase *tc);
 void evas_test_text(TCase *tc);
 void evas_test_callbacks(TCase *tc);

src/tests/evas/evas_test_object.c

@@ -0,0 +1,36 @@
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+
+#include "evas_suite.h"
+#include "Evas.h"
+#include "evas_tests_helpers.h"
+
+START_TEST(evas_object_various)
+{
+   Evas *evas = EVAS_TEST_INIT_EVAS();
+
+   Evas_Object *obj = evas_object_rectangle_add(evas);
+
+   evas_object_ref(obj);
+   evas_free(evas);
+   evas_object_unref(obj);
+
+   evas = EVAS_TEST_INIT_EVAS();
+   eo_ref(obj);
+   evas_free(evas);
+   eo_unref(obj);
+
+
+   /* Twice because EVAS_TEST_INIT_EVAS inits it twice. */
+   evas_shutdown();
+   evas_shutdown();
+}
+END_TEST
+
+void evas_test_object(TCase *tc)
+{
+   tcase_add_test(tc, evas_object_various);
+}