experimental.DataQuery: add unit test (#1418)

Author: gabor

experimental/apis/data/v0alpha1/conversions_test.go

@@ -20,3 +20,41 @@ func TestConversionsDefaults(t *testing.T) {
 	require.Equal(t, int64(100), res.MaxDataPoints)
 	require.Equal(t, time.Second, res.Interval)
 }
+
+func TestToBackendDataQueryJSON(t *testing.T) {
+	q := DataQuery{
+		CommonQueryProperties: CommonQueryProperties{
+			RefID: "A",
+			TimeRange: &TimeRange{
+				From: "12345678",
+				To:   "87654321",
+			},
+			Datasource: &DataSourceRef{
+				Type: "prometheus",
+				UID:  "hello-world",
+			},
+			QueryType:     "interesting",
+			MaxDataPoints: 42,
+			IntervalMS:    15.0,
+		},
+	}
+
+	q.Set("key1", "value1")
+	q.Set("key2", "value2")
+
+	bq, err := toBackendDataQuery(q, nil)
+	require.NoError(t, err)
+
+	require.Equal(t, "A", bq.RefID)
+	require.Equal(t, "interesting", bq.QueryType)
+	require.Equal(t, int64(42), bq.MaxDataPoints)
+	require.Equal(t, time.Millisecond*15, bq.Interval)
+
+	require.NotNil(t, bq.TimeRange)
+	require.Equal(t, time.UnixMilli(12345678).UTC(), bq.TimeRange.From)
+	require.Equal(t, time.UnixMilli(87654321).UTC(), bq.TimeRange.To)
+
+	jsonData := `{"refId":"A","timeRange":{"from":"12345678","to":"87654321"},"datasource":{"type":"prometheus","uid":"hello-world"},"queryType":"interesting","maxDataPoints":42,"intervalMs":15,"key1":"value1","key2":"value2"}`
+
+	require.Equal(t, jsonData, string(bq.JSON))
+}