Assert formatted integer parses back to the same value
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@ -20,21 +20,32 @@ enum IntegerInput {
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Usize(usize),
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}
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fuzz_target!(|input: IntegerInput| {
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let mut buffer = itoa::Buffer::new();
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let string = match input {
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IntegerInput::I8(val) => buffer.format(val),
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IntegerInput::U8(val) => buffer.format(val),
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IntegerInput::I16(val) => buffer.format(val),
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IntegerInput::U16(val) => buffer.format(val),
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IntegerInput::I32(val) => buffer.format(val),
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IntegerInput::U32(val) => buffer.format(val),
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IntegerInput::I64(val) => buffer.format(val),
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IntegerInput::U64(val) => buffer.format(val),
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IntegerInput::I128(val) => buffer.format(val),
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IntegerInput::U128(val) => buffer.format(val),
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IntegerInput::Isize(val) => buffer.format(val),
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IntegerInput::Usize(val) => buffer.format(val),
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macro_rules! test_itoa {
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($val:expr) => {
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match $val {
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val => {
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let mut buffer = itoa::Buffer::new();
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let string = buffer.format(val);
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assert!(string.len() <= mem::size_of::<itoa::Buffer>());
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assert_eq!(val, string.parse().unwrap());
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}
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}
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};
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assert!(string.len() <= mem::size_of::<itoa::Buffer>());
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}
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fuzz_target!(|input: IntegerInput| {
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match input {
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IntegerInput::I8(val) => test_itoa!(val),
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IntegerInput::U8(val) => test_itoa!(val),
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IntegerInput::I16(val) => test_itoa!(val),
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IntegerInput::U16(val) => test_itoa!(val),
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IntegerInput::I32(val) => test_itoa!(val),
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IntegerInput::U32(val) => test_itoa!(val),
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IntegerInput::I64(val) => test_itoa!(val),
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IntegerInput::U64(val) => test_itoa!(val),
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IntegerInput::I128(val) => test_itoa!(val),
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IntegerInput::U128(val) => test_itoa!(val),
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IntegerInput::Isize(val) => test_itoa!(val),
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IntegerInput::Usize(val) => test_itoa!(val),
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}
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});
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