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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/GeneratorPrototype/throw/try-catch-within-try.js | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/GeneratorPrototype/throw/try-catch-within-try.js b/js/src/tests/test262/built-ins/GeneratorPrototype/throw/try-catch-within-try.js new file mode 100644 index 0000000000..b945ef4893 --- /dev/null +++ b/js/src/tests/test262/built-ins/GeneratorPrototype/throw/try-catch-within-try.js @@ -0,0 +1,66 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 25.3.1.4 +description: > + When a generator is paused within the `try` block of a `try..catch` + statement, `throw` should interrupt control flow as if a `throw` statement + had appeared at that location in the function body. +features: [generators] +---*/ + +var unreachable = 0; +function* g() { + yield 1; + try { + yield 2; + unreachable += 1; + } catch (e) { + yield e; + } + yield 3; +} +var iter, result, exception; + +exception = new Test262Error(); +iter = g(); + +result = iter.next(); +assert.sameValue(result.value, 1, 'First result `value`'); +assert.sameValue(result.done, false, 'First result `done` flag'); + +result = iter.next(); +assert.sameValue(result.value, 2, 'Second result `value`'); +assert.sameValue(result.done, false, 'Second result `done` flag'); + +result = iter.throw(exception); +assert.sameValue(result.value, exception, 'Third result `value`'); +assert.sameValue(result.done, false, 'Third result `done` flag'); + +assert.sameValue( + unreachable, + 0, + 'statement following `yield` not executed (following `throw`)' +); + +result = iter.next(); +assert.sameValue(result.value, 3, 'Fourth result `done` flag'); +assert.sameValue(result.done, false, 'Fourth result `value`'); +assert.sameValue( + unreachable, + 0, + 'statement following `yield` not executed (following `catch`)' +); + +result = iter.next(); +assert.sameValue( + result.value, undefined, 'Result `value` is undefined when done' +); +assert.sameValue(result.done, true, 'Result `done` flag is `true` when done'); +assert.sameValue( + unreachable, 0, 'statement following `yield` not executed (once "completed")' +); + +iter.next(); + +reportCompare(0, 0); |