c2: add some unittests

Signed-off-by: Yuxuan Shui <[email protected]>

src/c2.c

@@ -34,6 +34,7 @@
 #include "list.h"
 #include "log.h"
 #include "string_utils.h"
+#include "test.h"
 #include "utils.h"
 #include "win.h"
 #include "x.h"
@@ -328,6 +329,8 @@ static int c2_parse_legacy(const char *pattern, int offset, c2_ptr_t *presult);
 
 static void c2_free(c2_ptr_t p);
 
+static size_t c2_condition_to_str(c2_ptr_t p, char *output, size_t len);
+
 /**
  * Wrapper of c2_free().
  */
@@ -391,6 +394,35 @@ c2_lptr_t *c2_parse(c2_lptr_t **pcondlst, const char *pattern, void *data) {
 	}
 }
 
+TEST_CASE(c2_parse) {
+	c2_lptr_t *cond = c2_parse(NULL, "name = \"xterm\"", NULL);
+	char str[1024];
+	TEST_TRUE(cond != NULL);
+	TEST_TRUE(cond->ptr.l != NULL);
+	TEST_EQUAL(cond->ptr.l->op, C2_L_OEQ);
+	TEST_EQUAL(cond->ptr.l->ptntype, C2_L_PTSTRING);
+	TEST_STREQUAL(cond->ptr.l->ptnstr, "xterm");
+
+	size_t len = c2_condition_to_str(cond->ptr, str, sizeof(str));
+	TEST_STREQUAL3(str, "name:0s = \"xterm\"", len);
+	c2_list_free(&cond, NULL);
+
+	cond = c2_parse(NULL, "_GTK_FRAME_EXTENTS@:c", NULL);
+	TEST_TRUE(cond != NULL);
+	TEST_TRUE(cond->ptr.l != NULL);
+	TEST_EQUAL(cond->ptr.l->op, C2_L_OEXISTS);
+	TEST_TRUE(cond->ptr.l->tgt_onframe);
+	TEST_TRUE(cond->ptr.l->tgt != NULL);
+	TEST_STREQUAL(cond->ptr.l->tgt, "_GTK_FRAME_EXTENTS");
+
+#if 0
+	// This currently fails
+	len = c2_condition_to_str(cond->ptr, str, sizeof(str));
+	TEST_STREQUAL3(str, "_GTK_FRAME_EXTENTS@:c", len);
+#endif
+	c2_list_free(&cond, NULL);
+}
+
 #define c2_error(format, ...)                                                                \
 	do {                                                                                 \
 		log_error("Pattern \"%s\" pos %d: " format, pattern, offset, ##__VA_ARGS__); \