355 lines
8.8 KiB
Rust
355 lines
8.8 KiB
Rust
use rhai::{Engine, EvalAltResult, ParseErrorType, Scope, INT};
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#[test]
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fn test_switch() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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let mut scope = Scope::new();
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scope.push("x", 42 as INT);
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assert_eq!(
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engine.eval::<char>("switch 2 { 1 => (), 2 => 'a', 42 => true }")?,
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'a'
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);
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engine.run("switch 3 { 1 => (), 2 => 'a', 42 => true }")?;
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assert_eq!(
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engine.eval::<INT>("switch 3 { 1 => (), 2 => 'a', 42 => true, _ => 123 }")?,
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123
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"switch 2 { 1 => (), 2 if x < 40 => 'a', 42 => true, _ => 123 }"
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)?,
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123
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);
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"switch 2 { 1 => (), 2 if x > 40 => 'a', 42 => true, _ => 123 }"
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)?,
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'a'
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);
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assert!(
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engine.eval_with_scope::<bool>(&mut scope, "switch x { 1 => (), 2 => 'a', 42 => true }")?
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);
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assert!(
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engine.eval_with_scope::<bool>(&mut scope, "switch x { 1 => (), 2 => 'a', _ => true }")?
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);
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let _: () = engine.eval_with_scope::<()>(&mut scope, "switch x { 1 => 123, 2 => 'a' }")?;
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"switch x { 1 | 2 | 3 | 5..50 | 'x' | true => 123, 'z' => 'a' }"
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)?,
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123
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(&mut scope, "switch x { 424242 => 123, _ => 42 }")?,
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42
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"switch x { 1 => 123, 42 => { x / 2 }, _ => 999 }"
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)?,
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21
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);
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#[cfg(not(feature = "no_index"))]
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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let y = [1, 2, 3];
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switch y {
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42 => 1,
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true => 2,
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[1, 2, 3] => 3,
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_ => 9
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}
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"
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)?,
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3
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);
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#[cfg(not(feature = "no_object"))]
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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let y = #{a:1, b:true, c:'x'};
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switch y {
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42 => 1,
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true => 2,
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#{b:true, c:'x', a:1} => 3,
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_ => 9
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}
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"
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)?,
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3
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(&mut scope, "switch 42 { 42 => 123, 42 => 999 }")?,
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123
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(&mut scope, "switch x { 42 => 123, 42 => 999 }")?,
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123
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);
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Ok(())
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}
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#[test]
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fn test_switch_errors() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert!(matches!(
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engine
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.compile("switch x { _ => 123, 1 => 42 }")
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.unwrap_err()
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.err_type(),
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ParseErrorType::WrongSwitchDefaultCase
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));
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Ok(())
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}
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#[test]
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fn test_switch_condition() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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let mut scope = Scope::new();
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scope.push("x", 42 as INT);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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switch x / 2 {
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21 if x > 40 => 1,
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0 if x < 100 => 2,
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1 => 3,
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_ => 9
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}
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"
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)?,
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1
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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switch x / 2 {
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21 if x < 40 => 1,
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0 if x < 100 => 2,
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1 => 3,
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_ => 9
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}
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"
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)?,
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9
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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switch x {
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42 if x < 40 => 1,
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42 if x > 40 => 7,
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0 if x < 100 => 2,
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1 => 3,
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42 if x == 10 => 10,
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_ => 9
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}
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"
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)?,
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7
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);
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assert!(matches!(
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engine
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.compile("switch x { 1 => 123, _ if true => 42 }")
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.unwrap_err()
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.err_type(),
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ParseErrorType::WrongSwitchCaseCondition
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));
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Ok(())
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}
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#[cfg(not(feature = "no_index"))]
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#[cfg(not(feature = "no_object"))]
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mod test_switch_enum {
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use super::*;
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use rhai::Array;
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#[derive(Debug, Clone)]
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#[allow(dead_code)]
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enum MyEnum {
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Foo,
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Bar(INT),
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Baz(String, bool),
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}
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impl MyEnum {
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fn get_enum_data(&mut self) -> Array {
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match self {
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Self::Foo => vec!["Foo".into()] as Array,
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Self::Bar(num) => vec!["Bar".into(), (*num).into()] as Array,
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Self::Baz(name, option) => {
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vec!["Baz".into(), name.clone().into(), (*option).into()] as Array
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}
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}
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}
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}
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#[test]
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fn test_switch_enum() -> Result<(), Box<EvalAltResult>> {
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let mut engine = Engine::new();
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engine
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.register_type_with_name::<MyEnum>("MyEnum")
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.register_get("get_data", MyEnum::get_enum_data);
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let mut scope = Scope::new();
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scope.push("x", MyEnum::Baz("hello".to_string(), true));
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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r#"
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switch x.get_data {
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["Foo"] => 1,
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["Bar", 42] => 2,
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["Bar", 123] => 3,
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["Baz", "hello", false] => 4,
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["Baz", "hello", true] => 5,
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_ => 9
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}
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"#
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)?,
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5
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);
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Ok(())
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}
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}
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#[test]
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fn test_switch_ranges() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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let mut scope = Scope::new();
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scope.push("x", 42 as INT);
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"switch x { 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 30..100 => true }"
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)?,
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'a'
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);
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"switch x { 10..20 => (), 20..=42 if x < 40 => 'a', 25..45 => 'z', 30..100 => true }"
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)?,
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'z'
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);
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"switch x { 42 => 'x', 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 30..100 => true, 'w' => true }"
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)?,
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'x'
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);
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assert!(matches!(
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engine.compile(
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"switch x { 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 42 => 'x', 30..100 => true }"
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).unwrap_err().err_type(),
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ParseErrorType::WrongSwitchIntegerCase
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));
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#[cfg(not(feature = "no_float"))]
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assert!(matches!(
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engine.compile(
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"switch x { 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 42.0 => 'x', 30..100 => true }"
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).unwrap_err().err_type(),
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ParseErrorType::WrongSwitchIntegerCase
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));
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"
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switch 5 {
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'a' => true,
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0..10 if x+2==1+2 => print(40+2),
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_ => 'x'
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}
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"
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)?,
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'x'
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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switch 5 {
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'a' => true,
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0..10 => 123,
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2..12 => 'z',
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_ => 'x'
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}
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"
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)?,
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123
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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"
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switch 5 {
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'a' => true,
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4 | 5 | 6 => 42,
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0..10 => 123,
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2..12 => 'z',
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_ => 'x'
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}
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"
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)?,
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42
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);
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"
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switch 5 {
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'a' => true,
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2..12 => 'z',
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0..10 if x+2==1+2 => print(40+2),
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_ => 'x'
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}
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"
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)?,
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'z'
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);
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assert_eq!(
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engine.eval_with_scope::<char>(
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&mut scope,
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"
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switch 5 {
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'a' => true,
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0..10 if x+2==1+2 => print(40+2),
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2..12 => 'z',
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_ => 'x'
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}
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"
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)?,
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'z'
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);
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Ok(())
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}
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