File
Blob: src/rust/jsg-test/tests/name.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 | //! Tests for `Local<Name>` — the `v8::Name` supertype shared by `String` and `Symbol`. |
| 6 | |
| 7 | use jsg::v8; |
| 8 | use jsg::v8::Local; |
| 9 | |
| 10 | // ============================================================================= |
| 11 | // Helpers |
| 12 | // ============================================================================= |
| 13 | |
| 14 | fn str_to_name<'a>(lock: &mut jsg::Lock, s: &str) -> Local<'a, v8::Name> { |
| 15 | let js_str = v8::String::new_from_str(lock, s).unwrap(lock); |
| 16 | js_str.into() |
| 17 | } |
| 18 | |
| 19 | // ============================================================================= |
| 20 | // Identity hash — via Local<Name> |
| 21 | // ============================================================================= |
| 22 | |
| 23 | #[test] |
| 24 | fn name_get_identity_hash_string_is_nonzero() { |
| 25 | let harness = crate::Harness::new(); |
| 26 | harness.run_in_context(|lock, _ctx| { |
| 27 | let name = str_to_name(lock, "hash-me"); |
| 28 | assert_ne!(name.get_identity_hash(), 0); |
| 29 | Ok(()) |
| 30 | }); |
| 31 | } |
| 32 | |
| 33 | #[test] |
| 34 | fn name_get_identity_hash_string_is_stable() { |
| 35 | let harness = crate::Harness::new(); |
| 36 | harness.run_in_context(|lock, _ctx| { |
| 37 | let name = str_to_name(lock, "stable-hash"); |
| 38 | assert_eq!(name.get_identity_hash(), name.get_identity_hash()); |
| 39 | Ok(()) |
| 40 | }); |
| 41 | } |
| 42 | |
| 43 | #[test] |
| 44 | fn name_get_identity_hash_symbol_is_nonzero() { |
| 45 | let harness = crate::Harness::new(); |
| 46 | harness.run_in_context(|lock, _ctx| { |
| 47 | let sym = v8::Symbol::new(lock, None); |
| 48 | let name: Local<v8::Name> = sym.into(); |
| 49 | assert_ne!(name.get_identity_hash(), 0); |
| 50 | Ok(()) |
| 51 | }); |
| 52 | } |
| 53 | |
| 54 | #[test] |
| 55 | fn name_get_identity_hash_symbol_is_stable() { |
| 56 | let harness = crate::Harness::new(); |
| 57 | harness.run_in_context(|lock, _ctx| { |
| 58 | let sym = v8::Symbol::new(lock, None); |
| 59 | let name: Local<v8::Name> = sym.clone().into(); |
| 60 | let name2: Local<v8::Name> = sym.into(); |
| 61 | assert_eq!(name.get_identity_hash(), name2.get_identity_hash()); |
| 62 | Ok(()) |
| 63 | }); |
| 64 | } |
| 65 | |
| 66 | // ============================================================================= |
| 67 | // Upcasting: String → Name and Symbol → Name |
| 68 | // ============================================================================= |
| 69 | |
| 70 | #[test] |
| 71 | fn string_upcast_to_name_is_name() { |
| 72 | let harness = crate::Harness::new(); |
| 73 | harness.run_in_context(|lock, _ctx| { |
| 74 | let s = v8::String::new_from_str(lock, "hello").unwrap(lock); |
| 75 | assert!(s.is_string()); |
| 76 | assert!(s.is_name()); |
| 77 | let name: Local<v8::Name> = s.into(); |
| 78 | assert!(name.is_name()); |
| 79 | Ok(()) |
| 80 | }); |
| 81 | } |
| 82 | |
| 83 | #[test] |
| 84 | fn symbol_upcast_to_name_is_name() { |
| 85 | let harness = crate::Harness::new(); |
| 86 | harness.run_in_context(|lock, _ctx| { |
| 87 | let sym = v8::Symbol::new(lock, None); |
| 88 | assert!(sym.is_symbol()); |
| 89 | assert!(sym.is_name()); |
| 90 | let name: Local<v8::Name> = sym.into(); |
| 91 | assert!(name.is_name()); |
| 92 | Ok(()) |
| 93 | }); |
| 94 | } |