ResourceServer: Resource store sql backend (#90170)

pkg/storage/unified/sql/sqltemplate/dialect_postgresql_test.go

@@ -0,0 +1,38 @@
+package sqltemplate
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestPostgreSQL_Ident(t *testing.T) {
+	t.Parallel()
+
+	testCases := []struct {
+		input  string
+		output string
+		err    error
+	}{
+		{input: ``, err: ErrEmptyIdent},
+		{input: `polite_example`, output: `"polite_example"`},
+		{input: `Juan Carlos`, output: `"Juan Carlos"`},
+		{
+			input: `unpolite_` + string([]byte{0}) + `example`,
+			err:   ErrPostgreSQLUnsupportedIdent,
+		},
+		{
+			input:  `exaggerated " ' ` + "`" + ` example`,
+			output: `"exaggerated "" ' ` + "`" + ` example"`,
+		},
+	}
+
+	for i, tc := range testCases {
+		gotOutput, gotErr := PostgreSQL.Ident(tc.input)
+		if !errors.Is(gotErr, tc.err) {
+			t.Fatalf("unexpected error %v in test case %d", gotErr, i)
+		}
+		if gotOutput != tc.output {
+			t.Fatalf("unexpected error %v in test case %d", gotErr, i)
+		}
+	}
+}