Add test for queryConfig validation

server/queryconfig_test.go

@@ -0,0 +1,50 @@
+package server
+
+import (
+	"testing"
+
+	"github.com/influxdata/chronograf"
+)
+
+func TestValidateQueryConfig(t *testing.T) {
+	tests := []struct {
+		name    string
+		q       *chronograf.QueryConfig
+		wantErr bool
+	}{
+		{
+			name: "invalid field type",
+			q: &chronograf.QueryConfig{
+				Fields: []chronograf.Field{
+					{
+						Type: "invalid",
+					},
+				},
+			},
+			wantErr: true,
+		},
+		{
+			name: "invalid field args",
+			q: &chronograf.QueryConfig{
+				Fields: []chronograf.Field{
+					{
+						Type: "func",
+						Args: []chronograf.Field{
+							{
+								Type: "invalid",
+							},
+						},
+					},
+				},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := ValidateQueryConfig(tt.q); (err != nil) != tt.wantErr {
+				t.Errorf("ValidateQueryConfig() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}