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75dac35d0e
This fixes two issues with running a TryStatement finalizer: - Temporarily store and clear the exception, if any, so we can run the finalizer block statement without it getting in our way, which could have unexpected side effects otherwise (and will likely return early somewhere). - Stop unwinding so more than one child node of the finalizer BlockStatement is executed if an exception has been thrown previously (which would have called unwind(ScopeType::Try)). Re-throwing as described above ensures we still unwind after the finalizer, if necessary. Also add some tests specifically for try/catch/finally blocks, we didn't have any!
55 lines
2 KiB
JavaScript
55 lines
2 KiB
JavaScript
test("Nested try/catch/finally with exceptions", () => {
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// This test uses a combination of boolean "checkpoint" flags
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// and expect().fail() to ensure certain code paths have been
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// reached and others haven't.
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var level1TryHasBeenExecuted = false;
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var level1CatchHasBeenExecuted = false;
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var level1FinallyHasBeenExecuted = false;
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var level2TryHasBeenExecuted = false;
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var level2CatchHasBeenExecuted = false;
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var level3TryHasBeenExecuted = false;
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var level3CatchHasBeenExecuted = false;
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var level3FinallyHasBeenExecuted = false;
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expect(() => {
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try {
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level1TryHasBeenExecuted = true;
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foo();
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expect().fail();
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} catch (e) {
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level1CatchHasBeenExecuted = true;
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try {
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level2TryHasBeenExecuted = true;
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try {
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level3TryHasBeenExecuted = true;
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bar();
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expect().fail();
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} catch (e) {
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level3CatchHasBeenExecuted = true;
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} finally {
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level3FinallyHasBeenExecuted = true;
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baz();
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expect().fail();
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}
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expect().fail();
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} catch (e) {
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level2CatchHasBeenExecuted = true;
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qux();
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expect().fail();
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}
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expect().fail();
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} finally {
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level1FinallyHasBeenExecuted = true;
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throw Error("Error in final finally");
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expect().fail();
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}
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expect().fail();
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}).toThrow(Error, "Error in final finally");
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expect(level1TryHasBeenExecuted).toBeTrue();
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expect(level1CatchHasBeenExecuted).toBeTrue();
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expect(level1FinallyHasBeenExecuted).toBeTrue();
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expect(level2TryHasBeenExecuted).toBeTrue();
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expect(level2CatchHasBeenExecuted).toBeTrue();
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expect(level3TryHasBeenExecuted).toBeTrue();
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expect(level3CatchHasBeenExecuted).toBeTrue();
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expect(level3FinallyHasBeenExecuted).toBeTrue();
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});
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