test: added test case for async function rejection, and arguments length validation.

This commit is contained in:
Luca Greco 2016-10-11 15:08:24 +02:00
parent 7a247f56f2
commit a585b4b07a
1 changed files with 42 additions and 0 deletions

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@ -44,5 +44,47 @@ describe("browser-polyfill", () => {
"Fake runtime.requestUpdateCheck resolved to an array of values"); "Fake runtime.requestUpdateCheck resolved to an array of values");
}); });
}); });
it("rejects the returned promise if chrome.runtime.lastError is not null", () => {
const fakeChrome = {
runtime: {
lastError: new Error("fake lastError"),
},
tabs: {
query: sinon.stub(),
},
};
return setupTestDOMWindow(fakeChrome).then(window => {
// Test for single array callback argument.
fakeChrome.tabs.query
.onFirstCall().callsArgWith(1, ["res1", "res2"]);
return window.browser.tabs.query({active: true}).then(
() => assert.fail("Expected a rejected promise"),
(err) => assert.equal(err, fakeChrome.runtime.lastError,
"Got the expected error in the rejected promise")
);
});
});
it("throws if the number of arguments are not in the range defined in the metadata", () => {
const fakeChrome = {
runtime: {
lastError: null,
sendMessage: sinon.spy(),
},
};
return setupTestDOMWindow(fakeChrome).then(window => {
assert.throws(() => {
window.browser.runtime.sendMessage();
}, "Expected at least 1 arguments for sendMessage(), got 0");
assert.throws(() => {
window.browser.runtime.sendMessage("0", "1", "2", "3");
}, "Expected at most 3 arguments for sendMessage(), got 4");
});
});
}); });
}); });