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fix(2525): ensure non empty message when error of type string is passed, but no message #2544

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2 changes: 1 addition & 1 deletion lib/sinon/default-behaviors.js
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ function throwsException(fake, error, message) {
fake.exceptionCreator = error;
} else if (typeof error === "string") {
fake.exceptionCreator = function () {
const newException = new Error(message || "");
const newException = new Error(message || `Sinon-provided ${error}` || "");
newException.name = error;
return newException;
};
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2 changes: 1 addition & 1 deletion test/proxy-call-test.js
Original file line number Diff line number Diff line change
Expand Up @@ -1134,7 +1134,7 @@ describe("sinonSpy.call", function () {

assert.equals(
object.doIt.getCall(0).toString().replace(/ at.*/g, ""),
"doIt() !TypeError"
"doIt() !TypeError(Sinon-provided TypeError)"
);
});

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12 changes: 12 additions & 0 deletions test/stub-test.js
Original file line number Diff line number Diff line change
Expand Up @@ -940,6 +940,18 @@ describe("stub", function () {
assert.contains(stub.firstCall.toString(), "not implemented");
});

it("creates a non empty error message when error is a string and no message is passed", function () {
const stub = createStub()

stub.withArgs(1).throws("apple pie")

assert.exception(function () {
stub(1)
}, {
message: "Sinon-provided apple pie"
})
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})

describe("lazy instantiation of exceptions", function () {
let errorSpy;
beforeEach(function () {
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