diff options
Diffstat (limited to 'js/src/jit-test/tests/debug/Frame-onStep-generator-resumption-01.js')
-rw-r--r-- | js/src/jit-test/tests/debug/Frame-onStep-generator-resumption-01.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-onStep-generator-resumption-01.js b/js/src/jit-test/tests/debug/Frame-onStep-generator-resumption-01.js new file mode 100644 index 0000000000..ad61ccd9e4 --- /dev/null +++ b/js/src/jit-test/tests/debug/Frame-onStep-generator-resumption-01.js @@ -0,0 +1,42 @@ +// The debugger can't force return from a generator before the initial yield. + +let g = newGlobal({newCompartment: true}); +g.eval(` + function* f() { + yield 1; + } +`); + +let dbg = new Debugger(g); +let steps = 0; +let uncaughtErrorsReported = 0; +dbg.onEnterFrame = frame => { + assertEq(frame.callee.name, "f"); + dbg.onEnterFrame = undefined; + frame.onStep = () => { + steps++; + + // This test case never resumes the generator after the initial + // yield. Therefore the initial yield has not happened yet. So this + // force-return will be an error. + return {return: "ponies"}; + }; + + // Having an onPop hook exercises some assertions that don't happen + // otherwise. + frame.onPop = completion => {}; +}; + +dbg.uncaughtExceptionHook = (reason) => { + // When onEnterFrame returns an invalid resumption value, + // the error is reported here. + assertEq(reason instanceof TypeError, true); + uncaughtErrorsReported++; + return undefined; // Cancel the force-return. Let the debuggee continue. +}; + +let result = g.f(); +assertEq(result instanceof g.f, true); + +assertEq(steps > 0, true); +assertEq(uncaughtErrorsReported, steps); |