133 lines
3.5 KiB
Rust
133 lines
3.5 KiB
Rust
use dust_lang::*;
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#[test]
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fn subtract_floats() {
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let source = "2.0 - 2.0";
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assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
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None,
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FunctionType {
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type_parameters: None,
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value_parameters: None,
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return_type: Box::new(Type::Float),
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},
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vec![
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(
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Instruction::subtract(
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Destination::Register(0),
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Argument::Constant(0),
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Argument::Constant(0)
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),
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Span(4, 5)
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),
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(Instruction::r#return(true), Span(9, 9)),
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],
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vec![ConcreteValue::Float(2.0)],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Float(0.0))));
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}
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#[test]
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fn subtract_floats_saturate() {
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let source = "-1.7976931348623157E+308 - 0.0000001";
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assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
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None,
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FunctionType {
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type_parameters: None,
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value_parameters: None,
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return_type: Box::new(Type::Float),
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},
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vec![
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(
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Instruction::subtract(
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Destination::Register(0),
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Argument::Constant(0),
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Argument::Constant(1)
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),
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Span(25, 26)
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),
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(Instruction::r#return(true), Span(36, 36)),
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],
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vec![
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ConcreteValue::Float(f64::MIN),
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ConcreteValue::Float(0.0000001),
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],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Float(f64::MIN))));
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}
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#[test]
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fn subtract_integers() {
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let source = "1 - 2";
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assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
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None,
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FunctionType {
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type_parameters: None,
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value_parameters: None,
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return_type: Box::new(Type::Integer),
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},
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vec![
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(
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Instruction::subtract(
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Destination::Register(0),
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Argument::Constant(0),
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Argument::Constant(1)
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),
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Span(2, 3)
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),
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(Instruction::r#return(true), Span(5, 5)),
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],
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vec![ConcreteValue::Integer(1), ConcreteValue::Integer(2)],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Integer(-1))));
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}
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#[test]
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fn subtract_integers_saturate() {
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let source = "-9223372036854775808 - 1";
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assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
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None,
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FunctionType {
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type_parameters: None,
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value_parameters: None,
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return_type: Box::new(Type::Integer),
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},
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vec![
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(
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Instruction::subtract(
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Destination::Register(0),
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Argument::Constant(0),
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Argument::Constant(1)
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),
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Span(21, 22)
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),
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(Instruction::r#return(true), Span(24, 24)),
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],
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vec![ConcreteValue::Integer(i64::MIN), ConcreteValue::Integer(1),],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Integer(i64::MIN))));
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}
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