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// Copyright 2018 the Deno authors. All rights reserved. MIT license.
import { test, assert, assertEqual } from "./test_util.ts";
import { stringifyArgs } from "./console.ts";
// tslint:disable-next-line:no-any
function stringify(...args: any[]): string {
return stringifyArgs(args);
}
test(function consoleTestAssert() {
console.assert(true);
let hasThrown = false;
try {
console.assert(false);
} catch {
hasThrown = true;
}
assertEqual(hasThrown, true);
});
test(function consoleTestStringifyComplexObjects() {
assertEqual(stringify("foo"), "foo");
assertEqual(stringify(["foo", "bar"]), `[ "foo", "bar" ]`);
assertEqual(stringify({ foo: "bar" }), `{ foo: "bar" }`);
});
test(function consoleTestStringifyCircular() {
class Base {
a = 1;
m1() {}
}
class Extended extends Base {
b = 2;
m2() {}
}
// tslint:disable-next-line:no-any
const nestedObj: any = {
num: 1,
bool: true,
str: "a",
method() {},
async asyncMethod() {},
*generatorMethod() {},
un: undefined,
nu: null,
arrowFunc: () => {},
extendedClass: new Extended(),
nFunc: new Function(),
extendedCstr: Extended
};
const circularObj = {
num: 2,
bool: false,
str: "b",
method() {},
un: undefined,
nu: null,
nested: nestedObj,
emptyObj: {},
arr: [1, "s", false, null, nestedObj],
baseClass: new Base()
};
nestedObj.o = circularObj;
// tslint:disable-next-line:max-line-length
const nestedObjExpected = `{ num: 1, bool: true, str: "a", method: [Function: method], asyncMethod: [AsyncFunction: asyncMethod], generatorMethod: [GeneratorFunction: generatorMethod], un: undefined, nu: null, arrowFunc: [Function: arrowFunc], extendedClass: Extended { a: 1, b: 2 }, nFunc: [Function], extendedCstr: [Function: Extended], o: { num: 2, bool: false, str: "b", method: [Function: method], un: undefined, nu: null, nested: [Circular], emptyObj: [object], arr: [object], baseClass: [object] } }`;
assertEqual(stringify(1), "1");
assertEqual(stringify("s"), "s");
assertEqual(stringify(false), "false");
assertEqual(stringify(Symbol(1)), "Symbol(1)");
assertEqual(stringify(null), "null");
assertEqual(stringify(undefined), "undefined");
assertEqual(stringify(new Extended()), "Extended { a: 1, b: 2 }");
assertEqual(stringify(function f() {}), "[Function: f]");
assertEqual(stringify(async function af() {}), "[AsyncFunction: af]");
assertEqual(stringify(function* gf() {}), "[GeneratorFunction: gf]");
assertEqual(
stringify(async function* agf() {}),
"[AsyncGeneratorFunction: agf]"
);
assertEqual(stringify(nestedObj), nestedObjExpected);
assertEqual(stringify(JSON), "{}");
assertEqual(
stringify(console),
// tslint:disable-next-line:max-line-length
"Console { printFunc: [Function], log: [Function], debug: [Function], info: [Function], dir: [Function], warn: [Function], error: [Function], assert: [Function] }"
);
});
test(function consoleTestStringifyWithDepth() {
// tslint:disable-next-line:no-any
const nestedObj: any = { a: { b: { c: { d: { e: { f: 42 } } } } } };
assertEqual(
stringifyArgs([nestedObj], { depth: 3 }),
"{ a: { b: { c: [object] } } }"
);
assertEqual(
stringifyArgs([nestedObj], { depth: 4 }),
"{ a: { b: { c: { d: [object] } } } }"
);
assertEqual(stringifyArgs([nestedObj], { depth: 0 }), "[object]");
assertEqual(
stringifyArgs([nestedObj], { depth: null }),
"{ a: { b: [object] } }"
);
});
test(function consoleTestError() {
class MyError extends Error {
constructor(errStr: string) {
super(errStr);
this.name = "MyError";
}
}
try {
throw new MyError("This is an error");
} catch (e) {
assertEqual(stringify(e).split("\n")[0], "MyError: This is an error");
}
});
// Test bound this issue
test(function consoleDetachedLog() {
const log = console.log;
const dir = console.dir;
const debug = console.debug;
const info = console.info;
const warn = console.warn;
const error = console.error;
const consoleAssert = console.assert;
log("Hello world");
dir("Hello world");
debug("Hello world");
info("Hello world");
warn("Hello world");
error("Hello world");
consoleAssert(true);
});
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