diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/display.rs | 143 | ||||
| -rw-r--r-- | tests/lib.rs | 50 |
2 files changed, 193 insertions, 0 deletions
diff --git a/tests/display.rs b/tests/display.rs new file mode 100644 index 0000000..8826303 --- /dev/null +++ b/tests/display.rs @@ -0,0 +1,143 @@ + +// this was something of a misfeature for these formatters.. +#[test] +#[allow(deprecated)] +fn formatters_are_not_feature_gated() { + use yaxpeax_arch::display::{ + u8_hex, u16_hex, u32_hex, u64_hex, + signed_i8_hex, signed_i16_hex, signed_i32_hex, signed_i64_hex + }; + let _ = u8_hex(10); + let _ = u16_hex(10); + let _ = u32_hex(10); + let _ = u64_hex(10); + let _ = signed_i8_hex(10); + let _ = signed_i16_hex(10); + let _ = signed_i32_hex(10); + let _ = signed_i64_hex(10); +} + +#[cfg(feature="alloc")] +#[test] +fn instruction_text_sink_write_char_requires_ascii() { + use core::fmt::Write; + + let mut text = String::with_capacity(512); + let mut sink = unsafe { + yaxpeax_arch::display::InstructionTextSink::new(&mut text) + }; + let expected = "`1234567890-=+_)(*&^%$#@!~\\][poiuytrewq |}{POIUYTREWQ';lkjhgfdsa\":LKJHGFDSA/.,mnbvcxz?><MNBVCXZ \r\n"; + for c in expected.as_bytes().iter() { + sink.write_char(*c as char).expect("write works"); + } + assert_eq!(text, expected); +} + +#[cfg(feature="alloc")] +#[test] +#[should_panic] +fn instruction_text_sink_write_char_rejects_not_ascii() { + use core::fmt::Write; + + let mut text = String::with_capacity(512); + let mut sink = unsafe { + yaxpeax_arch::display::InstructionTextSink::new(&mut text) + }; + sink.write_char('\u{80}').expect("write works"); +} + +#[cfg(feature="alloc")] +#[test] +fn display_sink_write_hex_helpers() { + use yaxpeax_arch::display::{DisplaySink}; + + // for u8/i8/u16/i16 we can exhaustively test. we'll leave the rest for fuzzers. + let mut buf = String::new(); + for i in 0..=u8::MAX { + buf.clear(); + buf.write_u8(i).expect("write succeeds"); + assert_eq!(buf, format!("{:x}", i)); + + buf.clear(); + buf.write_prefixed_u8(i).expect("write succeeds"); + assert_eq!(buf, format!("0x{:x}", i)); + + let expected = if (i as i8) < 0 { + format!("-0x{:x}", (i as i8).unsigned_abs()) + } else { + format!("0x{:x}", i) + }; + + buf.clear(); + buf.write_prefixed_i8(i as i8).expect("write succeeds"); + assert_eq!(buf, expected); + } + + for i in 0..=u16::MAX { + buf.clear(); + buf.write_u16(i).expect("write succeeds"); + assert_eq!(buf, format!("{:x}", i)); + + buf.clear(); + buf.write_prefixed_u16(i).expect("write succeeds"); + assert_eq!(buf, format!("0x{:x}", i)); + + let expected = if (i as i16) < 0 { + format!("-0x{:x}", (i as i16).unsigned_abs()) + } else { + format!("0x{:x}", i) + }; + + buf.clear(); + buf.write_prefixed_i16(i as i16).expect("write succeeds"); + assert_eq!(buf, expected); + } +} + +#[cfg(feature="alloc")] +#[test] +fn sinks_are_equivalent() { + use yaxpeax_arch::display::{DisplaySink, FmtSink}; + use yaxpeax_arch::testkit::DisplaySinkWriteComparator; + + let mut bare = String::new(); + let mut through_sink = String::new(); + for i in 0..u16::MAX { + bare.clear(); + through_sink.clear(); + let mut out = FmtSink::new(&mut through_sink); + let mut comparator = DisplaySinkWriteComparator::new( + &mut out, + |sink| { sink.inner_ref().as_str() }, + &mut bare, + |sink| { sink.as_str() }, + ); + comparator.write_u16(i).expect("write succeeds"); + comparator.write_prefixed_u16(i).expect("write succeeds"); + comparator.write_prefixed_i16(i as i16).expect("write succeeds"); + } +} + +#[cfg(all(feature="alloc", feature="color-new"))] +#[test] +fn ansi_sink_works() { + use yaxpeax_arch::color_new::ansi::AnsiDisplaySink; + use yaxpeax_arch::display::DisplaySink; + + let mut buf = String::new(); + + let mut ansi_sink = AnsiDisplaySink::new(&mut buf, yaxpeax_arch::color_new::DefaultColors); + + ansi_sink.span_start_immediate(); + ansi_sink.write_prefixed_u8(0x80).expect("write succeeds"); + ansi_sink.span_end_immediate(); + ansi_sink.write_fixed_size("(").expect("write succeeds"); + ansi_sink.span_start_register(); + ansi_sink.write_fixed_size("rbp").expect("write succeeds"); + ansi_sink.span_end_register(); + ansi_sink.write_fixed_size(")").expect("write succeeds"); + + drop(ansi_sink); + + assert_eq!(buf, "\x1b[37m0x80\x1b[39m(\x1b[38;5;6mrbp\x1b[39m)"); +} diff --git a/tests/lib.rs b/tests/lib.rs index 1d5e964..9dc1449 100644 --- a/tests/lib.rs +++ b/tests/lib.rs @@ -12,6 +12,7 @@ fn test_u16() { } #[test] +#[cfg(std)] fn generic_error_can_bail() { use yaxpeax_arch::{Arch, Decoder, Reader}; @@ -23,6 +24,7 @@ fn generic_error_can_bail() { } } #[test] +#[cfg(std)] fn error_can_bail() { use yaxpeax_arch::{Arch, AddressDiff, Decoder, Reader, LengthedInstruction, Instruction, StandardDecodeError, U8Reader}; struct TestIsa {} @@ -76,3 +78,51 @@ fn error_can_bail() { assert_eq!(exercise_eq(), Err(Error::TestDecode(StandardDecodeError::ExhaustedInput))); } + +#[test] +fn example_arch_impl() { + use yaxpeax_arch::{Arch, AddressDiff, Decoder, Reader, LengthedInstruction, Instruction, StandardDecodeError, U8Reader}; + struct TestIsa {} + #[derive(Debug, Default)] + struct TestInst {} + impl Arch for TestIsa { + type Word = u8; + type Address = u64; + type Instruction = TestInst; + type Decoder = TestIsaDecoder; + type DecodeError = StandardDecodeError; + type Operand = (); + } + + impl Instruction for TestInst { + fn well_defined(&self) -> bool { true } + } + + impl LengthedInstruction for TestInst { + type Unit = AddressDiff<u64>; + fn len(&self) -> Self::Unit { AddressDiff::from_const(1) } + fn min_size() -> Self::Unit { AddressDiff::from_const(1) } + } + + struct TestIsaDecoder {} + + impl Default for TestIsaDecoder { + fn default() -> Self { + TestIsaDecoder {} + } + } + + impl Decoder<TestIsa> for TestIsaDecoder { + fn decode_into<T: Reader<u64, u8>>(&self, _inst: &mut TestInst, _words: &mut T) -> Result<(), StandardDecodeError> { + Err(StandardDecodeError::ExhaustedInput) + } + } + + fn exercise_eq() -> Result<(), StandardDecodeError> { + let mut reader = U8Reader::new(&[]); + TestIsaDecoder::default().decode(&mut reader)?; + Ok(()) + } + + assert_eq!(exercise_eq(), Err(StandardDecodeError::ExhaustedInput)); +} |