Start trying to write tests for promql

promql/parser/parse_test.go

@@ -478,6 +478,7 @@ var testExpr = []struct {
 		expected: &UnaryExpr{
 			Op: ADD,
 			Expr: &VectorSelector{
+				Name: "some_metric",
 				LabelMatchers: []*labels.Matcher{
 					MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
 				},
@@ -1717,6 +1718,20 @@ var testExpr = []struct {
 			},
 		},
 	},
+	{
+		input: `{"foo", a="bc"}`,
+		expected: &VectorSelector{
+			Name: "foo:bar",
+			LabelMatchers: []*labels.Matcher{
+				MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
+				MustLabelMatcher(labels.MatchEqual, "a", "bc"),
+			},
+			PosRange: posrange.PositionRange{
+				Start: 0,
+				End:   15,
+			},
+		},
+	},
 	{
 		input: `{"foo"}`,
 		expected: &VectorSelector{