File
Blob: src/rust/jsg-test/tests/eval.rs
| 1 | // Copyright (c) 2026 Cloudflare, Inc. |
| 2 | // Licensed under the Apache 2.0 license found in the LICENSE file or at: |
| 3 | // https://opensource.org/licenses/Apache-2.0 |
| 4 | |
| 5 | use jsg::Number; |
| 6 | |
| 7 | use crate::EvalError; |
| 8 | |
| 9 | #[test] |
| 10 | fn eval_returns_correct_type() { |
| 11 | let harness = crate::Harness::new(); |
| 12 | harness.run_in_context(|lock, ctx| { |
| 13 | let result: String = ctx.eval(lock, "'Hello, World!'").unwrap(); |
| 14 | assert_eq!(result, "Hello, World!"); |
| 15 | Ok(()) |
| 16 | }); |
| 17 | } |
| 18 | |
| 19 | #[test] |
| 20 | fn eval_string_concatenation() { |
| 21 | let harness = crate::Harness::new(); |
| 22 | harness.run_in_context(|lock, ctx| { |
| 23 | let result: String = ctx.eval(lock, "'Hello' + ', ' + 'World!'").unwrap(); |
| 24 | assert_eq!(result, "Hello, World!"); |
| 25 | Ok(()) |
| 26 | }); |
| 27 | } |
| 28 | |
| 29 | #[test] |
| 30 | fn eval_number_returns_number_type() { |
| 31 | let harness = crate::Harness::new(); |
| 32 | harness.run_in_context(|lock, ctx| { |
| 33 | let result: Number = ctx.eval(lock, "42").unwrap(); |
| 34 | assert!((result.value() - 42.0).abs() < f64::EPSILON); |
| 35 | Ok(()) |
| 36 | }); |
| 37 | } |
| 38 | |
| 39 | #[test] |
| 40 | fn eval_arithmetic_expression() { |
| 41 | let harness = crate::Harness::new(); |
| 42 | harness.run_in_context(|lock, ctx| { |
| 43 | let result: Number = ctx.eval(lock, "1 + 2 + 3").unwrap(); |
| 44 | assert!((result.value() - 6.0).abs() < f64::EPSILON); |
| 45 | Ok(()) |
| 46 | }); |
| 47 | } |
| 48 | |
| 49 | #[test] |
| 50 | fn eval_boolean_true() { |
| 51 | let harness = crate::Harness::new(); |
| 52 | harness.run_in_context(|lock, ctx| { |
| 53 | let result: bool = ctx.eval(lock, "true").unwrap(); |
| 54 | assert!(result); |
| 55 | Ok(()) |
| 56 | }); |
| 57 | } |
| 58 | |
| 59 | #[test] |
| 60 | fn eval_boolean_false() { |
| 61 | let harness = crate::Harness::new(); |
| 62 | harness.run_in_context(|lock, ctx| { |
| 63 | let result: bool = ctx.eval(lock, "false").unwrap(); |
| 64 | assert!(!result); |
| 65 | Ok(()) |
| 66 | }); |
| 67 | } |
| 68 | |
| 69 | #[test] |
| 70 | fn eval_comparison_expression() { |
| 71 | let harness = crate::Harness::new(); |
| 72 | harness.run_in_context(|lock, ctx| { |
| 73 | let result: bool = ctx.eval(lock, "5 > 3").unwrap(); |
| 74 | assert!(result); |
| 75 | Ok(()) |
| 76 | }); |
| 77 | } |
| 78 | |
| 79 | #[test] |
| 80 | fn eval_null() { |
| 81 | let harness = crate::Harness::new(); |
| 82 | harness.run_in_context(|lock, ctx| { |
| 83 | let result: jsg::Nullable<bool> = ctx.eval(lock, "null").unwrap(); |
| 84 | assert!(result.is_null()); |
| 85 | Ok(()) |
| 86 | }); |
| 87 | } |
| 88 | |
| 89 | #[test] |
| 90 | fn eval_throws_on_error() { |
| 91 | let harness = crate::Harness::new(); |
| 92 | harness.run_in_context(|lock, ctx| { |
| 93 | let result = ctx.eval::<bool>(lock, "throw new Error('test error')"); |
| 94 | match result.unwrap_err() { |
| 95 | EvalError::Exception(value) => { |
| 96 | assert_eq!(value.to_string(), "Error: test error"); |
| 97 | } |
| 98 | _ => panic!("Unexpected error type"), |
| 99 | } |
| 100 | Ok(()) |
| 101 | }); |
| 102 | } |
| 103 | |
| 104 | #[test] |
| 105 | fn eval_throws_string_preserves_message() { |
| 106 | let harness = crate::Harness::new(); |
| 107 | harness.run_in_context(|lock, ctx| { |
| 108 | let result = ctx.eval::<bool>(lock, "throw 'custom string error'"); |
| 109 | match result.unwrap_err() { |
| 110 | EvalError::Exception(value) => { |
| 111 | assert_eq!(value.to_string(), "custom string error"); |
| 112 | } |
| 113 | _ => panic!("Unexpected error type"), |
| 114 | } |
| 115 | Ok(()) |
| 116 | }); |
| 117 | } |
| 118 | |
| 119 | #[test] |
| 120 | fn eval_function_call() { |
| 121 | let harness = crate::Harness::new(); |
| 122 | harness.run_in_context(|lock, ctx| { |
| 123 | let result: String = ctx |
| 124 | .eval(lock, "(function() { return 'from function'; })()") |
| 125 | .unwrap(); |
| 126 | assert_eq!(result, "from function"); |
| 127 | Ok(()) |
| 128 | }); |
| 129 | } |
| 130 | |
| 131 | #[test] |
| 132 | fn eval_typeof_string() { |
| 133 | let harness = crate::Harness::new(); |
| 134 | harness.run_in_context(|lock, ctx| { |
| 135 | let result: String = ctx.eval(lock, "typeof 'hello'").unwrap(); |
| 136 | assert_eq!(result, "string"); |
| 137 | Ok(()) |
| 138 | }); |
| 139 | } |
| 140 | |
| 141 | #[test] |
| 142 | fn eval_typeof_number() { |
| 143 | let harness = crate::Harness::new(); |
| 144 | harness.run_in_context(|lock, ctx| { |
| 145 | let result: String = ctx.eval(lock, "typeof 42").unwrap(); |
| 146 | assert_eq!(result, "number"); |
| 147 | Ok(()) |
| 148 | }); |
| 149 | } |
| 150 | |
| 151 | #[test] |
| 152 | fn eval_typeof_boolean() { |
| 153 | let harness = crate::Harness::new(); |
| 154 | harness.run_in_context(|lock, ctx| { |
| 155 | let result: String = ctx.eval(lock, "typeof true").unwrap(); |
| 156 | assert_eq!(result, "boolean"); |
| 157 | Ok(()) |
| 158 | }); |
| 159 | } |
| 160 | |
| 161 | #[test] |
| 162 | fn eval_unicode_string() { |
| 163 | let harness = crate::Harness::new(); |
| 164 | harness.run_in_context(|lock, ctx| { |
| 165 | let result: String = ctx.eval(lock, "'こんにちは'").unwrap(); |
| 166 | assert_eq!(result, "こんにちは"); |
| 167 | Ok(()) |
| 168 | }); |
| 169 | } |
| 170 | |
| 171 | #[test] |
| 172 | fn eval_emoji_string() { |
| 173 | let harness = crate::Harness::new(); |
| 174 | harness.run_in_context(|lock, ctx| { |
| 175 | let result: String = ctx.eval(lock, "'😀🎉'").unwrap(); |
| 176 | assert_eq!(result, "😀🎉"); |
| 177 | Ok(()) |
| 178 | }); |
| 179 | } |