tests/fold: add tests for non-utf8 streams

phinjensen · phinjensen · commit faa6a9bb9556 · 2025-06-22T20:57:19.000-06:00
diff --git a/tests/by-util/test_fold.rs b/tests/by-util/test_fold.rs
@@ -554,3 +554,30 @@ fn test_obsolete_syntax() {
         .succeeds()
         .stdout_is("test1\n \ntest2\n \ntest3\n \ntest4\n \ntest5\n \ntest6\n ");
 }
+#[test]
+fn test_byte_break_at_non_utf8_character() {
+    new_ucmd!()
+        .arg("-b")
+        .arg("-s")
+        .arg("-w")
+        .arg("40")
+        .arg("non_utf8.input")
+        .succeeds()
+        .stdout_is_fixture_bytes("non_utf8.expected");
+}
+#[test]
+fn test_tab_advances_at_non_utf8_character() {
+    new_ucmd!()
+        .arg("-w8")
+        .arg("non_utf8_tab_stops.input")
+        .succeeds()
+        .stdout_is_fixture_bytes("non_utf8_tab_stops_w8.expected");
+}
+#[test]
+fn test_all_tab_advances_at_non_utf8_character() {
+    new_ucmd!()
+        .arg("-w16")
+        .arg("non_utf8_tab_stops.input")
+        .succeeds()
+        .stdout_is_fixture_bytes("non_utf8_tab_stops_w16.expected");
+}
diff --git a/tests/fixtures/fold/non_utf8.expected b/tests/fixtures/fold/non_utf8.expected
@@ -0,0 +1,2 @@
+Alle Menschen sind frei und gleich an 
+W�rde und Rechten geboren
diff --git a/tests/fixtures/fold/non_utf8.input b/tests/fixtures/fold/non_utf8.input
@@ -0,0 +1 @@
+Alle Menschen sind frei und gleich an W�rde und Rechten geboren
diff --git a/tests/fixtures/fold/non_utf8_tab_stops.input b/tests/fixtures/fold/non_utf8_tab_stops.input
@@ -0,0 +1,11 @@
+�
+��
+���
+����
+�����
+������
+�������
+��������
+���������
+��������	�
+��������	�	�
diff --git a/tests/fixtures/fold/non_utf8_tab_stops_w16.expected b/tests/fixtures/fold/non_utf8_tab_stops_w16.expected
@@ -0,0 +1,13 @@
+�
+��
+���
+����
+�����
+������
+�������
+��������
+���������
+��������	
+�
+��������	
+�	�
diff --git a/tests/fixtures/fold/non_utf8_tab_stops_w8.expected b/tests/fixtures/fold/non_utf8_tab_stops_w8.expected
@@ -0,0 +1,17 @@
+�
+��
+���
+����
+�����
+������
+�������
+��������
+��������
+�
+��������
+	
+�
+��������
+	
+�	
+�

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+Alle Menschen sind frei und gleich an`
	`2`	`+W�rde und Rechten geboren`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Alle Menschen sind frei und gleich an W�rde und Rechten geboren`