diff options
Diffstat (limited to 'src/text/template/parse/parse_test.go')
| -rw-r--r-- | src/text/template/parse/parse_test.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/text/template/parse/parse_test.go b/src/text/template/parse/parse_test.go index 26aff330fe..e8e6fe9759 100644 --- a/src/text/template/parse/parse_test.go +++ b/src/text/template/parse/parse_test.go @@ -86,6 +86,11 @@ var numberTests = []numberTest{ {"0xef", true, true, true, false, 0xef, 0xef, 0xef, 0}, } +func init() { + // Use a small stack limit for testing to avoid creating huge expressions. + maxStackDepth = 3 +} + func TestNumberParse(t *testing.T) { for _, test := range numberTests { // If fmt.Sscan thinks it's complex, it's complex. We can't trust the output @@ -327,6 +332,15 @@ var parseTests = []parseTest{ {"empty pipeline", `{{printf "%d" ( ) }}`, hasError, ""}, // Missing pipeline in block {"block definition", `{{block "foo"}}hello{{end}}`, hasError, ""}, + + // Expression nested depth tests. + {"paren nesting normal", "{{ (( 1 )) }}", noError, "{{((1))}}"}, + {"paren nesting at limit", "{{ ((( 1 ))) }}", noError, "{{(((1)))}}"}, + {"paren nesting exceeds limit", "{{ (((( 1 )))) }}", hasError, "template: test:1: max expression depth exceeded"}, + {"paren nesting in pipeline", "{{ ((( 1 ))) | printf }}", noError, "{{(((1))) | printf}}"}, + {"paren nesting in pipeline exceeds limit", "{{ (((( 1 )))) | printf }}", hasError, "template: test:1: max expression depth exceeded"}, + {"paren nesting with other constructs", "{{ if ((( true ))) }}YES{{ end }}", noError, "{{if (((true)))}}\"YES\"{{end}}"}, + {"paren nesting with other constructs exceeds limit", "{{ if (((( true )))) }}YES{{ end }}", hasError, "template: test:1: max expression depth exceeded"}, } var builtins = map[string]any{ |