More tests

Makefile

@@ -12,7 +12,7 @@ CLANG ?= clang # /usr/local/opt/llvm\@9/bin/clang
 ASAN_OPTIONS ?=
 EXAMPLES := $(wildcard examples/*)
 EXAMPLE_TARGET ?= example
-.PHONY: ex #$(EXAMPLES)
+.PHONY: ex test
 
 ifeq "$(SSL)" "MBEDTLS"
 MBEDTLSDIR ?= $(shell "$(brew --cellar mbedtls)/$(brew info mbedtls --json | jq -j .[0].installed[0].version)")
@@ -84,4 +84,4 @@ mongoose.h: $(HDRS) Makefile
 
 clean: EXAMPLE_TARGET = clean
 clean: ex
-	rm -rf $(PROG) *.o *.dSYM unit_test* ut fuzzer *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb slow-unit* _CL_* infer-out
+	rm -rf $(PROG) *.o *.dSYM unit_test* ut fuzzer *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb slow-unit* _CL_* infer-out data.txt

mongoose.c

@@ -3503,7 +3503,8 @@ int mg_vasprintf(char **buf, size_t size, const char *fmt, va_list ap) {
     // eCos and Windows are not standard-compliant and return -1 when
     // the buffer is too small. Keep allocating larger buffers until we
     // succeed or out of memory.
-    *buf = NULL;  // LCOV_EXCL_START
+    // LCOV_EXCL_START
+    *buf = NULL;
     while (len < 0) {
       free(*buf);
       if (size == 0) size = 5;
@@ -3519,7 +3520,7 @@ int mg_vasprintf(char **buf, size_t size, const char *fmt, va_list ap) {
     // Microsoft version of vsnprintf() is not always null-terminated, so put
     // the terminator manually
     (*buf)[len] = 0;
-    /// LCOV_EXCL_STOP
+    // LCOV_EXCL_STOP
   } else if (len >= (int) size) {
     /// Standard-compliant code path. Allocate a buffer that is large enough
     if ((*buf = (char *) malloc(len + 1)) == NULL) {

src/util.c

@@ -174,7 +174,8 @@ int mg_vasprintf(char **buf, size_t size, const char *fmt, va_list ap) {
     // eCos and Windows are not standard-compliant and return -1 when
     // the buffer is too small. Keep allocating larger buffers until we
     // succeed or out of memory.
-    *buf = NULL;  // LCOV_EXCL_START
+    // LCOV_EXCL_START
+    *buf = NULL;
     while (len < 0) {
       free(*buf);
       if (size == 0) size = 5;
@@ -190,7 +191,7 @@ int mg_vasprintf(char **buf, size_t size, const char *fmt, va_list ap) {
     // Microsoft version of vsnprintf() is not always null-terminated, so put
     // the terminator manually
     (*buf)[len] = 0;
-    /// LCOV_EXCL_STOP
+    // LCOV_EXCL_STOP
   } else if (len >= (int) size) {
     /// Standard-compliant code path. Allocate a buffer that is large enough
     if ((*buf = (char *) malloc(len + 1)) == NULL) {

test/unit_test.c

@@ -839,8 +839,31 @@ static void test_timer(void) {
   ASSERT(g_timers == NULL);
 }
 
+static void test_str(void) {
+  struct mg_str s = mg_strdup(mg_str("a"));
+  ASSERT(mg_strcmp(s, mg_str("a")) == 0);
+  free((void *) s.ptr);
+  ASSERT(mg_strcmp(mg_str(""), mg_str(NULL)) == 0);
+  ASSERT(mg_strcmp(mg_str("a"), mg_str("b")) < 0);
+  ASSERT(mg_strcmp(mg_str("b"), mg_str("a")) > 0);
+  ASSERT(mg_strstr(mg_str("abc"), mg_str("d")) == NULL);
+  ASSERT(mg_strstr(mg_str("abc"), mg_str("b")) != NULL);
+  ASSERT(mg_strcmp(mg_str("hi"), mg_strstrip(mg_str(" \thi\r\n"))) == 0);
+}
+
+static void test_util(void) {
+  char buf[100], *s = mg_hexdump("abc", 3);
+  ASSERT(s != NULL);
+  free(s);
+  ASSERT(mg_file_write("data.txt", "%s", "hi") == 2);
+  ASSERT(strcmp(mg_ntoa(0x100007f, buf, sizeof(buf)), "127.0.0.1") == 0);
+  ASSERT(strcmp(mg_hex("abc", 3, buf), "616263") == 0);
+}
+
 int main(void) {
   mg_log_set("3");
+  test_str();
+  test_util();
   test_timer();
   test_http_range();
   test_url();