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-rw-r--r--libnetdata/tests/Makefile.am4
-rw-r--r--libnetdata/tests/test_str2ld.c48
2 files changed, 52 insertions, 0 deletions
diff --git a/libnetdata/tests/Makefile.am b/libnetdata/tests/Makefile.am
new file mode 100644
index 000000000..babdcf0df
--- /dev/null
+++ b/libnetdata/tests/Makefile.am
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
diff --git a/libnetdata/tests/test_str2ld.c b/libnetdata/tests/test_str2ld.c
new file mode 100644
index 000000000..9d59f6c0e
--- /dev/null
+++ b/libnetdata/tests/test_str2ld.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "../libnetdata.h"
+#include "../required_dummies.h"
+#include <setjmp.h>
+#include <cmocka.h>
+
+static void test_str2ld(void **state)
+{
+ (void)state;
+ char *values[] = {
+ "1.2345678",
+ "-35.6",
+ "0.00123",
+ "23842384234234.2",
+ ".1",
+ "1.2e-10",
+ "hello",
+ "1wrong",
+ "nan",
+ "inf",
+ NULL
+ };
+
+ for (int i = 0; values[i]; i++) {
+ char *e_mine = "hello", *e_sys = "world";
+ LONG_DOUBLE mine = str2ld(values[i], &e_mine);
+ LONG_DOUBLE sys = strtold(values[i], &e_sys);
+
+ if (isnan(mine))
+ assert_true(isnan(sys));
+ else if (isinf(mine))
+ assert_true(isinf(sys));
+ else if (mine != sys)
+ assert_false(abs(mine - sys) > 0.000001);
+
+ assert_ptr_equal(e_mine, e_sys);
+ }
+}
+
+int main(void)
+{
+ const struct CMUnitTest tests[] = {
+ cmocka_unit_test(test_str2ld)
+ };
+
+ return cmocka_run_group_tests_name("str2ld", tests, NULL, NULL);
+}