Add unit test case to improve test coverage for matcher.go (#7658)

Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
6 years ago · 6b7ac2ac1b
parent 93e9c010f3
commit 6b7ac2ac1b
1 changed files with 9 additions and 0 deletions
--- a/promql/parser/printer_test.go
+++ b/promql/parser/printer_test.go
@ -89,6 +89,15 @@ func TestExprString(t *testing.T) {
 		{
 			in: `{__name__="a"}`,
 		},
+		{
+			in: `a{b!="c"}[1m]`,
+		},
+		{
+			in: `a{b=~"c"}[1m]`,
+		},
+		{
+			in: `a{b!~"c"}[1m]`,
+		},
 	}

 	for _, test := range inputs {