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{
// Plain-old Error object
let error = new Error("foobar");
let report = createErrorReport(error);
assertEq(report.toStringResult, "Error: foobar");
assertEq(report.name, "Error");
assertEq(report.message, "foobar");
}
{
// Error object with overwritten properties
let error = new Error("foobar");
error.name = "MyError";
error.message = "here";
let report = createErrorReport(error);
assertEq(report.toStringResult, "MyError: here");
assertEq(report.name, "Error");
assertEq(report.message, "here");
}
{
// Plain object, which doesn't quack (enough) like an Error
let obj = {name: "foo", message: "bar"};
let report = createErrorReport(obj);
assertEq(report.toStringResult, "uncaught exception: [object Object]");
assertEq(report.name, "");
assertEq(report.message, "uncaught exception: [object Object]");
}
{
// Duck-typed error object
let obj = {name: "foo", message: "bar", fileName: "test", lineNumber: 0};
let report = createErrorReport(obj);
assertEq(report.toStringResult, "foo: bar");
assertEq(report.name, "");
assertEq(report.message, "foo: bar");
}
{
// toString failure
let obj = {toString() { throw "haha"; }};
let report = createErrorReport(obj);
assertEq(report.toStringResult, "uncaught exception: unknown (can't convert to string)");
assertEq(report.name, "");
assertEq(report.message, "uncaught exception: unknown (can't convert to string)");
}
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