Add test for nil Len() behavior (#142)

veeceey · web-flow · commit fc8616545d42 · 2026-03-27T11:11:03.000+05:30
The nil check in Len() was added in PR #95 but lacked test coverage. This adds TestLenNil to verify that calling Len() on a nil *Error returns 0 instead of panicking. Fixes #54
diff --git a/sort_test.go b/sort_test.go
@@ -53,3 +53,10 @@ func TestSortMultiple(t *testing.T) {
 		t.Fatalf("bad: %#v", err)
 	}
 }
+
+func TestLenNil(t *testing.T) {
+	var err *Error
+	if err.Len() != 0 {
+		t.Fatalf("expected Len() to return 0 for nil *Error, got %d", err.Len())
+	}
+}

Original file line number	Diff line number	Diff line change
`@@ -53,3 +53,10 @@ func TestSortMultiple(t *testing.T) {`
`53`	`53`	`t.Fatalf("bad: %#v", err)`
`54`	`54`	`}`
`55`	`55`	`}`
	`56`	`+`
	`57`	`+func TestLenNil(t *testing.T) {`
	`58`	`+ var err *Error`
	`59`	`+ if err.Len() != 0 {`
	`60`	`+ t.Fatalf("expected Len() to return 0 for nil *Error, got %d", err.Len())`
	`61`	`+ }`
	`62`	`+}`