420 lines
11 KiB
Rust
420 lines
11 KiB
Rust
use rhai::{Engine, EvalAltResult, ImmutableString, Scope, INT};
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#[test]
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fn test_string() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(
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engine.eval::<String>(r#""Test string: \u2764""#)?,
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"Test string: ❤"
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);
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assert_eq!(
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engine.eval::<String>(r#""Test string: ""\u2764""""#)?,
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r#"Test string: "❤""#
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);
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assert_eq!(
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engine.eval::<String>("\"Test\rstring: \\u2764\"")?,
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"Test\rstring: ❤"
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);
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assert_eq!(
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engine.eval::<String>(" \"Test string: \\u2764\\\n hello, world!\"")?,
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if cfg!(not(feature = "no_position")) {
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"Test string: ❤ hello, world!"
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} else {
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"Test string: ❤ hello, world!"
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}
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);
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assert_eq!(
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engine.eval::<String>(" `Test string: \\u2764\nhello,\\nworld!`")?,
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"Test string: \\u2764\nhello,\\nworld!"
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);
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assert_eq!(
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engine.eval::<String>(r#" `Test string: \\u2764\n``hello``,\\n"world"!`"#)?,
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r#"Test string: \\u2764\n`hello`,\\n"world"!"#
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);
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assert_eq!(
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engine.eval::<String>(" `\nTest string: \\u2764\nhello,\\nworld!`")?,
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"Test string: \\u2764\nhello,\\nworld!"
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);
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assert_eq!(
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engine.eval::<String>(" `\r\nTest string: \\u2764\nhello,\\nworld!`")?,
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"Test string: \\u2764\nhello,\\nworld!"
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);
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assert_eq!(
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engine.eval::<String>(r#""Test string: \x58""#)?,
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"Test string: X"
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);
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assert_eq!(engine.eval::<String>(r#""\"hello\"""#)?, r#""hello""#);
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assert_eq!(engine.eval::<String>(r#""foo" + "bar""#)?, "foobar");
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assert!(engine.eval::<bool>(r#"let y = "hello, world!"; "world" in y"#)?);
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assert!(engine.eval::<bool>(r#"let y = "hello, world!"; 'w' in y"#)?);
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assert!(!engine.eval::<bool>(r#"let y = "hello, world!"; "hey" in y"#)?);
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assert_eq!(engine.eval::<String>(r#""foo" + 123"#)?, "foo123");
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#[cfg(not(feature = "no_object"))]
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assert_eq!(engine.eval::<String>("to_string(42)")?, "42");
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#[cfg(not(feature = "no_index"))]
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{
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assert_eq!(engine.eval::<char>(r#"let y = "hello"; y[1]"#)?, 'e');
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assert_eq!(engine.eval::<char>(r#"let y = "hello"; y[-1]"#)?, 'o');
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assert_eq!(engine.eval::<char>(r#"let y = "hello"; y[-4]"#)?, 'e');
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}
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#[cfg(not(feature = "no_object"))]
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assert_eq!(engine.eval::<INT>(r#"let y = "hello"; y.len"#)?, 5);
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#[cfg(not(feature = "no_object"))]
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assert_eq!(
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engine.eval::<INT>(r#"let y = "hello"; y.clear(); y.len"#)?,
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0
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);
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assert_eq!(engine.eval::<INT>(r#"let y = "hello"; len(y)"#)?, 5);
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#[cfg(not(feature = "no_object"))]
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#[cfg(not(feature = "no_index"))]
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assert_eq!(engine.eval::<char>(r#"let y = "hello"; y[y.len-1]"#)?, 'o');
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#[cfg(not(feature = "no_float"))]
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assert_eq!(engine.eval::<String>(r#""foo" + 123.4556"#)?, "foo123.4556");
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Ok(())
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}
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#[test]
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fn test_string_dynamic() -> 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", "foo");
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scope.push("y", "foo");
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scope.push("z", "foo");
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assert!(engine.eval_with_scope::<bool>(&mut scope, r#"x == "foo""#)?);
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assert!(engine.eval_with_scope::<bool>(&mut scope, r#"y == "foo""#)?);
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assert!(engine.eval_with_scope::<bool>(&mut scope, r#"z == "foo""#)?);
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Ok(())
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}
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#[test]
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fn test_string_mut() -> Result<(), Box<EvalAltResult>> {
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let mut engine = Engine::new();
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engine.register_fn("foo", |s: &str| s.len() as INT);
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engine.register_fn("bar", |s: String| s.len() as INT);
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engine.register_fn("baz", |s: &mut String| s.len());
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assert_eq!(engine.eval::<char>(r#"pop("hello")"#)?, 'o');
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assert_eq!(engine.eval::<String>(r#"pop("hello", 3)"#)?, "llo");
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assert_eq!(engine.eval::<String>(r#"pop("hello", 10)"#)?, "hello");
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assert_eq!(engine.eval::<String>(r#"pop("hello", -42)"#)?, "");
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assert_eq!(engine.eval::<INT>(r#"foo("hello")"#)?, 5);
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assert_eq!(engine.eval::<INT>(r#"bar("hello")"#)?, 5);
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assert!(
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matches!(*engine.eval::<INT>(r#"baz("hello")"#).unwrap_err(),
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EvalAltResult::ErrorFunctionNotFound(f, ..) if f == "baz (&str | ImmutableString | String)"
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)
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);
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Ok(())
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}
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#[cfg(not(feature = "no_object"))]
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#[test]
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fn test_string_substring() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(
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engine.eval::<String>(r#"let x = "hello! \u2764\u2764\u2764"; x.sub_string(-2, 2)"#)?,
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"❤❤"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.sub_string(1, 5)"#
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)?,
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"❤❤ he"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.sub_string(1)"#
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)?,
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"❤❤ hello! ❤❤❤"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.sub_string(99)"#
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)?,
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""
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.sub_string(1, -1)"#
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)?,
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""
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.sub_string(1, 999)"#
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)?,
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"❤❤ hello! ❤❤❤"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.crop(1, -1); x"#
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)?,
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""
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.crop(4, 6); x"#
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)?,
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"hello!"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.crop(1, 999); x"#
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)?,
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"❤❤ hello! ❤❤❤"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x -= 'l'; x"#
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)?,
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"❤❤❤ heo! ❤❤❤"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x -= "\u2764\u2764"; x"#
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)?,
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"❤ hello! ❤"
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);
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assert_eq!(
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engine.eval::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.index_of('\u2764')"#
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)?,
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0
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);
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assert_eq!(
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engine.eval::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.index_of('\u2764', 5)"#
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)?,
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11
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);
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assert_eq!(
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engine.eval::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.index_of('\u2764', -6)"#
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)?,
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11
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);
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assert_eq!(
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engine.eval::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.index_of('\u2764', 999)"#
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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::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.index_of('x')"#
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)?,
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-1
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);
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Ok(())
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}
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#[cfg(not(feature = "no_object"))]
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#[test]
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fn test_string_format() -> Result<(), Box<EvalAltResult>> {
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#[derive(Debug, Clone)]
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struct TestStruct {
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field: i64,
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}
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let mut engine = Engine::new();
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engine
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.register_type_with_name::<TestStruct>("TestStruct")
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.register_fn("new_ts", || TestStruct { field: 42 })
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.register_fn("to_string", |ts: TestStruct| format!("TS={}", ts.field))
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.register_fn("to_debug", |ts: TestStruct| {
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format!("!!!TS={}!!!", ts.field)
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});
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assert_eq!(
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engine.eval::<String>(r#"let x = new_ts(); "foo" + x"#)?,
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"fooTS=42"
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);
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assert_eq!(
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engine.eval::<String>(r#"let x = new_ts(); x + "foo""#)?,
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"TS=42foo"
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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::<String>(r#"let x = [new_ts()]; "foo" + x"#)?,
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"foo[!!!TS=42!!!]"
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);
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Ok(())
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}
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#[test]
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fn test_string_fn() -> Result<(), Box<EvalAltResult>> {
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let mut engine = Engine::new();
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engine.register_fn("set_to_x", |ch: &mut char| *ch = 'X');
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#[cfg(not(feature = "no_index"))]
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#[cfg(not(feature = "no_object"))]
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assert_eq!(
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engine.eval::<String>(r#"let x="foo"; x[0].set_to_x(); x"#)?,
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"Xoo"
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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::<String>(r#"let x="foo"; set_to_x(x[0]); x"#)?,
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"foo"
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);
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engine
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.register_fn("foo1", |s: &str| s.len() as INT)
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.register_fn("foo2", |s: ImmutableString| s.len() as INT)
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.register_fn("foo3", |s: String| s.len() as INT)
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.register_fn("foo4", |s: &mut ImmutableString| s.len() as INT);
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assert_eq!(engine.eval::<INT>(r#"foo1("hello")"#)?, 5);
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assert_eq!(engine.eval::<INT>(r#"foo2("hello")"#)?, 5);
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assert_eq!(engine.eval::<INT>(r#"foo3("hello")"#)?, 5);
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assert_eq!(engine.eval::<INT>(r#"foo4("hello")"#)?, 5);
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Ok(())
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}
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#[cfg(not(feature = "no_object"))]
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#[cfg(not(feature = "no_index"))]
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#[test]
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fn test_string_split() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(
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engine.eval::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.split(' ').len"#
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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::<INT>(
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r#"let x = "\u2764\u2764\u2764 hello! \u2764\u2764\u2764"; x.split("hello").len"#
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)?,
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2
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);
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Ok(())
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}
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#[test]
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fn test_string_interpolated() -> Result<(), Box<EvalAltResult>> {
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// Make sure strings interpolation works even under raw
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let engine = Engine::new_raw();
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assert_eq!(engine.eval::<String>("`${}`")?, "");
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assert_eq!(
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engine.eval::<String>(
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"
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let x = 40;
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`hello ${x+2} worlds!`
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"
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)?,
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"hello 42 worlds!"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"
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let x = 40;
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"hello ${x+2} worlds!"
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"#
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)?,
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"hello ${x+2} worlds!"
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);
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assert_eq!(
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engine.eval::<String>(
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"
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const x = 42;
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`hello ${x} worlds!`
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"
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)?,
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"hello 42 worlds!"
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);
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assert_eq!(engine.eval::<String>("`hello ${}world!`")?, "hello world!");
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assert_eq!(
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engine.eval::<String>(
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"
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const x = 42;
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`${x} worlds!`
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"
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)?,
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"42 worlds!"
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);
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assert_eq!(
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engine.eval::<String>(
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"
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const x = 42;
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`hello ${x}`
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"
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)?,
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"hello 42"
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);
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assert_eq!(
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engine.eval::<String>(
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"
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const x = 20;
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`hello ${let y = x + 1; `${y * 2}`} worlds!`
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"
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)?,
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"hello 42 worlds!"
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);
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assert_eq!(
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engine.eval::<String>(
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r#"
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let x = 42;
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let y = 123;
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`
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Undeniable logic:
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1) Hello, ${let w = `${x} world`; if x > 1 { w += "s" } w}!
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2) If ${y} > ${x} then it is ${y > x}!
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`
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"#
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)?,
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"Undeniable logic:\n1) Hello, 42 worlds!\n2) If 123 > 42 then it is true!\n",
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);
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Ok(())
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}
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