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Diffstat (limited to 'vendor/textwrap/tests/indent.rs')
-rw-r--r-- | vendor/textwrap/tests/indent.rs | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/vendor/textwrap/tests/indent.rs b/vendor/textwrap/tests/indent.rs new file mode 100644 index 0000000..9dd5ad2 --- /dev/null +++ b/vendor/textwrap/tests/indent.rs @@ -0,0 +1,88 @@ +/// 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); + } +} |