1 files changed, 95 insertions, 0 deletions
diff --git a/fluent-bit/lib/cmetrics/tests/issues.c b/fluent-bit/lib/cmetrics/tests/issues.c
new file mode 100644
index 000000000..8e6116e26
--- /dev/null
+++ b/fluent-bit/lib/cmetrics/tests/issues.c
@@ -0,0 +1,95 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  CMetrics
+ *  ========
+ *  Copyright 2021-2022 The CMetrics Authors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include <cmetrics/cmetrics.h>
+#include <cmetrics/cmt_counter.h>
+#include <cmetrics/cmt_encode_msgpack.h>
+#include <cmetrics/cmt_decode_msgpack.h>
+#include <cmetrics/cmt_encode_text.h>
+
+#include "cmt_tests.h"
+
+static struct cmt *generate_encoder_test_data()
+{
+    uint64_t ts;
+    struct cmt *cmt;
+    struct cmt_counter *c1;
+    struct cmt_counter *c2;
+
+    ts = 0;
+    cmt = cmt_create();
+
+    c1 = cmt_counter_create(cmt, "kubernetes", "", "load", "Network load",
+                            2, (char *[]) {"hostname", "app"});
+    cmt_counter_set(c1, ts, 10, 0, NULL);
+
+    c2 = cmt_counter_create(cmt, "kubernetes", "", "cpu", "CPU load",
+                            2, (char *[]) {"hostname", "app"});
+    cmt_counter_set(c2, ts, 10, 0, NULL);
+
+    return cmt;
+}
+
+
+void test_issue_54()
+{
+    const char  expected_text[] = "1970-01-01T00:00:00.000000000Z kubernetes_load{tag1=\"tag1\",tag2=\"tag2\"} = 10\n" \
+                                  "1970-01-01T00:00:00.000000000Z kubernetes_cpu{tag1=\"tag1\",tag2=\"tag2\"} = 10\n";
+    cfl_sds_t   text_result;
+    size_t      mp1_size;
+    char       *mp1_buf;
+    size_t      offset;
+    int         result;
+    struct cmt *cmt2;
+    struct cmt *cmt1;
+
+    cmt_initialize();
+
+    /* Generate context with data */
+    cmt1 = generate_encoder_test_data();
+    TEST_CHECK(NULL != cmt1);
+
+    /* append static labels */
+    cmt_label_add(cmt1, "tag1", "tag1");
+    cmt_label_add(cmt1, "tag2", "tag2");
+
+    /* CMT1 -> Msgpack */
+    result = cmt_encode_msgpack_create(cmt1, &mp1_buf, &mp1_size);
+    TEST_CHECK(0 == result);
+
+    /* Msgpack -> CMT2 */
+    offset = 0;
+    result = cmt_decode_msgpack_create(&cmt2, mp1_buf, mp1_size, &offset);
+    TEST_CHECK(0 == result);
+
+    text_result = cmt_encode_text_create(cmt2);
+
+    TEST_CHECK(NULL != text_result);
+    TEST_CHECK(0 == strcmp(text_result, expected_text));
+
+    cmt_encode_text_destroy(text_result);
+    cmt_decode_msgpack_destroy(cmt2);
+    cmt_encode_msgpack_destroy(mp1_buf);
+    cmt_destroy(cmt1);
+}
+
+TEST_LIST = {
+    {"issue_54", test_issue_54},
+    { 0 }
+};