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error.spec.ts
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326 lines (302 loc) · 8.04 KB
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import * as util from "../util";
test("throwString", () => {
util.testFunction`
throw "Some Error"
`.expectToEqual(new util.ExecutionError("Some Error"));
});
// TODO: Finally does not behave like it should, see #1137
// eslint-disable-next-line jest/no-disabled-tests
test.skip.each([0, 1, 2])("re-throw (%p)", i => {
util.testFunction`
const i: number = ${i};
function foo() {
try {
try {
if (i === 0) { throw "z"; }
} catch (e) {
throw "a";
} finally {
if (i === 1) { throw "b"; }
}
} catch (e) {
throw (e as string).toUpperCase();
} finally {
throw "C";
}
}
let result: string = "x";
try {
foo();
} catch (e) {
result = (e as string)[(e as string).length - 1];
}
return result;
`.expectToMatchJsResult();
});
test("re-throw (no catch var)", () => {
util.testFunction`
let result = "x";
try {
try {
throw "y";
} catch {
throw "z";
}
} catch (e) {
result = (e as string)[(e as string).length - 1];
}
return result;
`.expectToMatchJsResult();
});
test("return from try", () => {
util.testFunction`
function foobar() {
try {
return "foobar";
} catch {
}
}
return foobar();
`.expectToMatchJsResult();
});
test("return nil from try", () => {
util.testFunction`
let x = "unset";
function foobar() {
try {
return;
} catch {
}
x = "set";
}
foobar();
return x;
`.expectToMatchJsResult();
});
test("multi return from try", () => {
const testBuilder = util.testFunction`
function foobar() {
try {
return $multi("foo", "bar");
} catch {
}
}
const [foo, bar] = foobar();
return foo + bar;
`.withLanguageExtensions();
expect(testBuilder.getMainLuaCodeChunk()).not.toMatch("unpack(foobar");
testBuilder.expectToMatchJsResult();
});
test("return from catch", () => {
util.testFunction`
function foobar() {
try {
throw "foobar";
} catch (e) {
return e + " catch";
}
}
return foobar();
`.expectToMatchJsResult();
});
test("return nil from catch", () => {
util.testFunction`
let x = "unset";
function foobar() {
try {
throw "foobar";
} catch (e) {
return;
}
x = "set";
}
foobar();
return x;
`.expectToMatchJsResult();
});
test("multi return from catch", () => {
const testBuilder = util.testFunction`
function foobar(): LuaMultiReturn<[string, string]> {
try {
throw "foobar";
} catch (e) {
return $multi(e.toString(), " catch");
}
}
const [foo, bar] = foobar();
return foo + bar;
`.withLanguageExtensions();
expect(testBuilder.getMainLuaCodeChunk()).not.toMatch("unpack(foobar");
testBuilder.expectToMatchJsResult();
});
test("return from nested try", () => {
util.testFunction`
function foobar() {
try {
try {
return "foobar";
} catch {
}
} catch {
}
}
return foobar();
`.expectToMatchJsResult();
});
test("return from nested catch", () => {
util.testFunction`
function foobar() {
try {
throw "foobar";
} catch (e) {
try {
throw e + " catch1";
} catch (f) {
return f + " catch2";
}
}
}
return foobar();
`.expectToMatchJsResult();
});
test("return from try->finally", () => {
util.testFunction`
let x = "unevaluated";
function evaluate(arg: unknown) {
x = "evaluated";
return arg;
}
function foobar() {
try {
return evaluate("foobar");
} catch {
} finally {
return "finally";
}
}
return foobar() + " " + x;
`.expectToMatchJsResult();
});
test("return from catch->finally", () => {
util.testFunction`
let x = "unevaluated";
function evaluate(arg: unknown) {
x = "evaluated";
return arg;
}
function foobar() {
try {
throw "foobar";
} catch (e) {
return evaluate(e);
} finally {
return "finally";
}
}
return foobar() + " " + x;
`.expectToMatchJsResult();
});
test("multi return from try->finally", () => {
util.testFunction`
let x = "unevaluated";
function evaluate(arg: string) {
x = "evaluated";
return arg;
}
function foobar() {
try {
return $multi(evaluate("foo"), "bar");
} catch {
} finally {
return $multi("final", "ly");
}
}
const [foo, bar] = foobar();
return foo + bar + " " + x;
`
.withLanguageExtensions()
.expectToMatchJsResult();
});
test("multi return from catch->finally", () => {
util.testFunction`
let x = "unevaluated";
function evaluate(arg: string) {
x = "evaluated";
return arg;
}
function foobar() {
try {
throw "foo";
} catch (e) {
return $multi(evaluate(e), "bar");
} finally {
return $multi("final", "ly");
}
}
const [foo, bar] = foobar();
return foo + bar + " " + x;
`
.withLanguageExtensions()
.expectToMatchJsResult();
});
test("return from nested finally", () => {
util.testFunction`
let x = "";
function foobar() {
try {
try {
} finally {
x += "A";
return "foobar";
}
} finally {
x += "B";
return "finally";
}
}
return foobar() + " " + x;
`.expectToMatchJsResult();
});
test.each([
'"error string"',
"42",
"3.141",
"true",
"false",
"undefined",
'{ x: "error object" }',
'() => "error function"',
])("throw and catch %s", error => {
util.testFunction`
try {
throw ${error};
} catch (error) {
if (typeof error == 'function') {
return error();
} else {
return error;
}
}
`.expectToMatchJsResult();
});
const builtinErrors = ["Error", "RangeError", "ReferenceError", "SyntaxError", "TypeError", "URIError"];
test.each([...builtinErrors, ...builtinErrors.map(type => `new ${type}`)])("%s properties", errorType => {
util.testFunction`
const error = ${errorType}();
return { name: error.name, message: error.message, string: error.toString() };
`.expectToMatchJsResult();
});
test.each([...builtinErrors, "CustomError"])("get stack from %s", errorType => {
const stack = util.testFunction`
class CustomError extends Error {
public name = "CustomError";
}
let stack: string | undefined;
function innerFunction() { stack = new ${errorType}().stack; }
function outerFunction() { innerFunction(); }
outerFunction();
return stack;
`.getLuaExecutionResult();
expect(stack).toMatch("innerFunction");
expect(stack).toMatch("outerFunction");
});