/// tests cases ported over from python standard library use textwrap::{dedent, indent};
const ROUNDTRIP_CASES: [&str; 3] = [ // basic test case "Hi.\nThis is a test.\nTesting.", // include a blank line "Hi.\nThis is a test.\n\nTesting.", // include leading and trailing blank lines "\nHi.\nThis is a test.\nTesting.\n",
];
const WINDOWS_CASES: [&str; 2] = [ // use windows line endings "Hi.\r\nThis is a test.\r\nTesting.", // pathological case "Hi.\r\nThis is a test.\n\r\nTesting.\r\n\n",
];
#[test] fn test_indent_nomargin_default() { // indent should do nothing if 'prefix' is empty. for text in ROUNDTRIP_CASES.iter() {
assert_eq!(&indent(text, ""), text);
} for text in WINDOWS_CASES.iter() {
assert_eq!(&indent(text, ""), text);
}
}
#[test] fn test_roundtrip_spaces() { // A whitespace prefix should roundtrip with dedent for text in ROUNDTRIP_CASES.iter() {
assert_eq!(&dedent(&indent(text, " ")), text);
}
}
#[test] fn test_roundtrip_tabs() { // A whitespace prefix should roundtrip with dedent for text in ROUNDTRIP_CASES.iter() {
assert_eq!(&dedent(&indent(text, "\t\t")), text);
}
}
#[test] fn test_roundtrip_mixed() { // A whitespace prefix should roundtrip with dedent for text in ROUNDTRIP_CASES.iter() {
assert_eq!(&dedent(&indent(text, " \t \t ")), text);
}
}
#[test] fn test_indent_default() { // Test default indenting of lines that are not whitespace only let prefix = " "; let expected = [ // Basic test case " Hi.\n This is a test.\n Testing.", // Include a blank line " Hi.\n This is a test.\n\n Testing.", // Include leading and trailing blank lines "\n Hi.\n This is a test.\n Testing.\n",
]; for (text, expect) in ROUNDTRIP_CASES.iter().zip(expected.iter()) {
assert_eq!(&indent(text, prefix), expect)
} let expected = [ // Use Windows line endings " Hi.\r\n This is a test.\r\n Testing.", // Pathological case " Hi.\r\n This is a test.\n\r\n Testing.\r\n\n",
]; for (text, expect) in WINDOWS_CASES.iter().zip(expected.iter()) {
assert_eq!(&indent(text, prefix), expect)
}
}
#[test] fn indented_text_should_have_the_same_number_of_lines_as_the_original_text() { let texts = ["foo\nbar", "foo\nbar\n", "foo\nbar\nbaz"]; for original in texts.iter() { let indented = indent(original, "");
assert_eq!(&indented, original);
}
}
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-06-20)
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