--- /dev/null
+/**
+ * collectd - src/utils_format_stackdriver_test.c
+ * ISC license
+ *
+ * Copyright (C) 2017 Florian Forster
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Florian Forster <octo at collectd.org>
+ **/
+
+#include "testing.h"
+#include "utils_format_stackdriver.h"
+
+DEF_TEST(sd_format_metric_descriptor) {
+ value_list_t vl = {
+ .host = "example.com", .plugin = "unit-test", .type = "example",
+ };
+ char got[1024];
+
+ data_set_t ds_single = {
+ .type = "example",
+ .ds_num = 1,
+ .ds =
+ &(data_source_t){
+ .name = "value", .type = DS_TYPE_GAUGE, .min = NAN, .max = NAN,
+ },
+ };
+ EXPECT_EQ_INT(
+ 0, sd_format_metric_descriptor(got, sizeof(got), &ds_single, &vl, 0));
+ char const *want_single =
+ "{\"type\":\"custom.googleapis.com/collectd/unit_test/"
+ "example\",\"metricKind\":\"GAUGE\",\"valueType\":\"DOUBLE\",\"labels\":["
+ "{\"key\":\"host\",\"valueType\":\"STRING\"},{\"key\":\"plugin_"
+ "instance\",\"valueType\":\"STRING\"},{\"key\":\"type_instance\","
+ "\"valueType\":\"STRING\"}]}";
+ EXPECT_EQ_STR(want_single, got);
+
+ data_set_t ds_double = {
+ .type = "example",
+ .ds_num = 2,
+ .ds =
+ (data_source_t[]){
+ {.name = "one", .type = DS_TYPE_DERIVE, .min = 0, .max = NAN},
+ {.name = "two", .type = DS_TYPE_DERIVE, .min = 0, .max = NAN},
+ },
+ };
+ EXPECT_EQ_INT(
+ 0, sd_format_metric_descriptor(got, sizeof(got), &ds_double, &vl, 0));
+ char const *want_double =
+ "{\"type\":\"custom.googleapis.com/collectd/unit_test/"
+ "example_one\",\"metricKind\":\"CUMULATIVE\",\"valueType\":\"INT64\","
+ "\"labels\":[{\"key\":\"host\",\"valueType\":\"STRING\"},{\"key\":"
+ "\"plugin_instance\",\"valueType\":\"STRING\"},{\"key\":\"type_"
+ "instance\",\"valueType\":\"STRING\"}]}";
+ EXPECT_EQ_STR(want_double, got);
+ return 0;
+}
+
+int main(int argc, char **argv) {
+ RUN_TEST(sd_format_metric_descriptor);
+
+ END_TEST;
+}