Add a few unit tests

dashboard/dashboard_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"testing"
 
+	"github.com/K-Phoen/grabana/variable/datasource"
 	"github.com/stretchr/testify/require"
 )
 
@@ -155,6 +156,14 @@ func TestDashboardCanHaveVariablesAsQuery(t *testing.T) {
 	req.Len(panel.board.Templating.List, 1)
 }
 
+func TestDashboardCanHaveVariablesAsDatasource(t *testing.T) {
+	req := require.New(t)
+
+	panel := New("", VariableAsDatasource("source", datasource.Type("prometheus")))
+
+	req.Len(panel.board.Templating.List, 1)
+}
+
 func TestDashboardCanHaveRows(t *testing.T) {
 	req := require.New(t)
 

graph/graph_test.go

@@ -3,6 +3,8 @@ package graph
 import (
 	"testing"
 
+	"github.com/K-Phoen/grabana/graph/series"
+
 	"github.com/K-Phoen/grabana/axis"
 	"github.com/K-Phoen/grabana/target/stackdriver"
 	"github.com/stretchr/testify/require"
@@ -260,3 +262,11 @@ func TestLegendCanHideNullSeries(t *testing.T) {
 
 	req.True(panel.Builder.GraphPanel.Legend.HideEmpty)
 }
+
+func TestSeriesOverridesCanBeAdded(t *testing.T) {
+	req := require.New(t)
+
+	panel := New("", SeriesOverride(series.Alias("series"), series.Color("red")))
+
+	req.Len(panel.Builder.GraphPanel.SeriesOverrides, 1)
+}

graph/series/override.go

@@ -7,6 +7,7 @@ import (
 // OverrideOption represents an option that can be used alter a graph panel series.
 type OverrideOption func(series *sdk.SeriesOverride)
 
+// Alis defines an alias/regex used to identify the series to override.
 func Alias(alias string) OverrideOption {
 	return func(series *sdk.SeriesOverride) {
 		series.Alias = alias

graph/series/override_test.go

@@ -0,0 +1,67 @@
+package series
+
+import (
+	"testing"
+
+	"github.com/grafana-tools/sdk"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAliasCanBeDefined(t *testing.T) {
+	req := require.New(t)
+	series := &sdk.SeriesOverride{}
+
+	Alias("Error - .*")(series)
+
+	req.Equal("Error - .*", series.Alias)
+}
+
+func TestColorCanBeDefined(t *testing.T) {
+	req := require.New(t)
+	series := &sdk.SeriesOverride{}
+
+	Color("#65c5db")(series)
+
+	req.NotNil(series.Color)
+	req.Equal("#65c5db", *series.Color)
+}
+
+func TestDashesCanBeEnabled(t *testing.T) {
+	req := require.New(t)
+	series := &sdk.SeriesOverride{}
+
+	Dashes(true)(series)
+
+	req.NotNil(series.Dashes)
+	req.True(*series.Dashes)
+}
+
+func TestLinesCanBeEnabled(t *testing.T) {
+	req := require.New(t)
+	series := &sdk.SeriesOverride{}
+
+	Lines(true)(series)
+
+	req.NotNil(series.Lines)
+	req.True(*series.Lines)
+}
+
+func TestFillOpacityCanBeDefined(t *testing.T) {
+	req := require.New(t)
+	series := &sdk.SeriesOverride{}
+
+	Fill(2)(series)
+
+	req.NotNil(*series.Fill)
+	req.Equal(2, *series.Fill)
+}
+
+func TestLineWidthCanBeDefined(t *testing.T) {
+	req := require.New(t)
+	series := &sdk.SeriesOverride{}
+
+	LineWidth(3)(series)
+
+	req.NotNil(*series.LineWidth)
+	req.Equal(3, *series.LineWidth)
+}