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Diffstat (limited to '')
-rw-r--r-- | library/core/tests/str_lossy.rs | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/library/core/tests/str_lossy.rs b/library/core/tests/str_lossy.rs new file mode 100644 index 000000000..d4b47a470 --- /dev/null +++ b/library/core/tests/str_lossy.rs @@ -0,0 +1,85 @@ +use core::str::lossy::*; + +#[test] +fn chunks() { + let mut iter = Utf8Lossy::from_bytes(b"hello").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "hello", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes("ศไทย中华Việt Nam".as_bytes()).chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "ศไทย中华Việt Nam", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes(b"Hello\xC2 There\xFF Goodbye").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "Hello", broken: b"\xC2" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: " There", broken: b"\xFF" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: " Goodbye", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes(b"Hello\xC0\x80 There\xE6\x83 Goodbye").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "Hello", broken: b"\xC0" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: " There", broken: b"\xE6\x83" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: " Goodbye", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes(b"\xF5foo\xF5\x80bar").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF5" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xF5" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes(b"\xF1foo\xF1\x80bar\xF1\x80\x80baz").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF1" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xF1\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"\xF1\x80\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "baz", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes(b"\xF4foo\xF4\x80bar\xF4\xBFbaz").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF4" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xF4\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"\xF4" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xBF" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "baz", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + let mut iter = Utf8Lossy::from_bytes(b"\xF0\x80\x80\x80foo\xF0\x90\x80\x80bar").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF0" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "foo\u{10000}bar", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); + + // surrogates + let mut iter = Utf8Lossy::from_bytes(b"\xED\xA0\x80foo\xED\xBF\xBFbar").chunks(); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xED" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xA0" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xED" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xBF" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xBF" }), iter.next()); + assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"" }), iter.next()); + assert_eq!(None, iter.next()); +} + +#[test] +fn display() { + assert_eq!( + "Hello\u{FFFD}\u{FFFD} There\u{FFFD} Goodbye", + &Utf8Lossy::from_bytes(b"Hello\xC0\x80 There\xE6\x83 Goodbye").to_string() + ); +} + +#[test] +fn debug() { + assert_eq!( + "\"Hello\\xc0\\x80 There\\xe6\\x83 Goodbye\\u{10d4ea}\"", + &format!( + "{:?}", + Utf8Lossy::from_bytes(b"Hello\xC0\x80 There\xE6\x83 Goodbye\xf4\x8d\x93\xaa") + ) + ); +} |