Add MetricDefinition test coverage

Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

redfish/metricdefinition_test.go

@@ -0,0 +1,50 @@
+//
+// SPDX-License-Identifier: BSD-3-Clause
+//
+
+package redfish
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+)
+
+var metricDefinitonBody = `{
+	"@odata.type": "#MetricDefinition.v1_3_1.MetricDefinition",
+	"@odata.context": "/redfish/v1/$metadata#MetricDefinition.MetricDefinition",
+	"@odata.id": "/redfish/v1/TelemetryService/MetricDefinitions/VoltageStatus",
+	"Id": "VoltageStatus",
+	"Name": "Voltage status Metric Definition",
+	"Description": "Status of the Voltage of Small Form Factor pluggable(SFP) Tranceiver",
+	"MetricType": "Discrete",
+	"MetricDataType": "Enumeration",
+	"Accuracy": 0,
+	"SensingInterval": "PT60.0S",
+	"DiscreteValues": [
+	  "Unknown",
+	  "OK",
+	  "Warning",
+	  "Critical"
+	]
+  }`
+
+// TestMetricDefinition tests the parsing of MetricDefinition objects.
+func TestMetricDefinition(t *testing.T) {
+	var result MetricDefinition
+	err := json.NewDecoder(strings.NewReader(metricDefinitonBody)).Decode(&result)
+
+	if err != nil {
+		t.Errorf("Error decoding JSON: %s", err)
+	}
+
+	assertEquals(t, "VoltageStatus", result.ID)
+	assertEquals(t, "Voltage status Metric Definition", result.Name)
+	assertEquals(t, "Status of the Voltage of Small Form Factor pluggable(SFP) Tranceiver", result.Description)
+	assertEquals(t, "0", fmt.Sprintf("%.0f", result.Accuracy))
+	assertEquals(t, "PT60.0S", result.SensingInterval)
+	assertEquals(t, "4", fmt.Sprintf("%d", len(result.DiscreteValues)))
+	assertEquals(t, "Discrete", string(result.MetricType))
+	assertEquals(t, "Enumeration", string(result.MetricDataType))
+}