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denoland-deno/cli/js/console_test.ts
Bartek Iwańczuk 8d96dffa41
refactor: rewrite testPerm into unitTest (#4231)
Rewrite "testPerm" helper function used for testing of internal 
runtime code. It's been renamed to "unitTest" and provides API that
is extensible in the future by accepting optional "UnitTestOptions" 
argument. "test" helper was also removed and replaced by
overloaded version of "unitTest" that takes only function argument.

"UnitTestOptions" currently supports "perms" and "skip"
options, where former works exactly as first argument to "testPerm"
did, while the latter allows to conditionally skip tests.
2020-03-04 17:31:14 +01:00

706 lines
21 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals, unitTest } from "./test_util.ts";
// Some of these APIs aren't exposed in the types and so we have to cast to any
// in order to "trick" TypeScript.
const {
inspect,
writeSync,
stdout
// eslint-disable-next-line @typescript-eslint/no-explicit-any
} = Deno as any;
const customInspect = Deno.symbols.customInspect;
const {
Console,
stringifyArgs
// @ts-ignore TypeScript (as of 3.7) does not support indexing namespaces by symbol
} = Deno[Deno.symbols.internal];
function stringify(...args: unknown[]): string {
return stringifyArgs(args).replace(/\n$/, "");
}
// test cases from web-platform-tests
// via https://github.com/web-platform-tests/wpt/blob/master/console/console-is-a-namespace.any.js
unitTest(function consoleShouldBeANamespace(): void {
const prototype1 = Object.getPrototypeOf(console);
const prototype2 = Object.getPrototypeOf(prototype1);
assertEquals(Object.getOwnPropertyNames(prototype1).length, 0);
assertEquals(prototype2, Object.prototype);
});
unitTest(function consoleHasRightInstance(): void {
assert(console instanceof Console);
assertEquals({} instanceof Console, false);
});
unitTest(function consoleTestAssertShouldNotThrowError(): void {
mockConsole(console => {
console.assert(true);
let hasThrown = undefined;
try {
console.assert(false);
hasThrown = false;
} catch {
hasThrown = true;
}
assertEquals(hasThrown, false);
});
});
unitTest(function consoleTestStringifyComplexObjects(): void {
assertEquals(stringify("foo"), "foo");
assertEquals(stringify(["foo", "bar"]), `[ "foo", "bar" ]`);
assertEquals(stringify({ foo: "bar" }), `{ foo: "bar" }`);
});
unitTest(function consoleTestStringifyLongStrings(): void {
const veryLongString = "a".repeat(200);
// If we stringify an object containing the long string, it gets abbreviated.
let actual = stringify({ veryLongString });
assert(actual.includes("..."));
assert(actual.length < 200);
// However if we stringify the string itself, we get it exactly.
actual = stringify(veryLongString);
assertEquals(actual, veryLongString);
});
/* eslint-disable @typescript-eslint/explicit-function-return-type */
unitTest(function consoleTestStringifyCircular(): void {
class Base {
a = 1;
m1() {}
}
class Extended extends Base {
b = 2;
m2() {}
}
// eslint-disable-next-line @typescript-eslint/no-explicit-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;
const nestedObjExpected = `{ num, bool, str, method, asyncMethod, generatorMethod, un, nu, arrowFunc, extendedClass, nFunc, extendedCstr, o }`;
assertEquals(stringify(1), "1");
assertEquals(stringify(-0), "-0");
assertEquals(stringify(1n), "1n");
assertEquals(stringify("s"), "s");
assertEquals(stringify(false), "false");
assertEquals(stringify(new Number(1)), "[Number: 1]");
assertEquals(stringify(new Boolean(true)), "[Boolean: true]");
assertEquals(stringify(new String("deno")), `[String: "deno"]`);
assertEquals(stringify(/[0-9]*/), "/[0-9]*/");
assertEquals(
stringify(new Date("2018-12-10T02:26:59.002Z")),
"2018-12-10T02:26:59.002Z"
);
assertEquals(stringify(new Set([1, 2, 3])), "Set { 1, 2, 3 }");
assertEquals(
stringify(
new Map([
[1, "one"],
[2, "two"]
])
),
`Map { 1 => "one", 2 => "two" }`
);
assertEquals(stringify(new WeakSet()), "WeakSet { [items unknown] }");
assertEquals(stringify(new WeakMap()), "WeakMap { [items unknown] }");
assertEquals(stringify(Symbol(1)), "Symbol(1)");
assertEquals(stringify(null), "null");
assertEquals(stringify(undefined), "undefined");
assertEquals(stringify(new Extended()), "Extended { a: 1, b: 2 }");
assertEquals(
stringify(function f(): void {}),
"[Function: f]"
);
assertEquals(
stringify(async function af(): Promise<void> {}),
"[AsyncFunction: af]"
);
assertEquals(
stringify(function* gf() {}),
"[GeneratorFunction: gf]"
);
assertEquals(
stringify(async function* agf() {}),
"[AsyncGeneratorFunction: agf]"
);
assertEquals(stringify(new Uint8Array([1, 2, 3])), "Uint8Array [ 1, 2, 3 ]");
assertEquals(stringify(Uint8Array.prototype), "TypedArray []");
assertEquals(
stringify({ a: { b: { c: { d: new Set([1]) } } } }),
"{ a: { b: { c: { d: [Set] } } } }"
);
assertEquals(stringify(nestedObj), nestedObjExpected);
assertEquals(stringify(JSON), "{}");
assertEquals(
stringify(console),
"{ printFunc, log, debug, info, dir, dirxml, warn, error, assert, count, countReset, table, time, timeLog, timeEnd, group, groupCollapsed, groupEnd, clear, trace, indentLevel }"
);
// test inspect is working the same
assertEquals(inspect(nestedObj), nestedObjExpected);
});
/* eslint-enable @typescript-eslint/explicit-function-return-type */
unitTest(function consoleTestStringifyWithDepth(): void {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const nestedObj: any = { a: { b: { c: { d: { e: { f: 42 } } } } } };
assertEquals(
stringifyArgs([nestedObj], { depth: 3 }),
"{ a: { b: { c: [Object] } } }"
);
assertEquals(
stringifyArgs([nestedObj], { depth: 4 }),
"{ a: { b: { c: { d: [Object] } } } }"
);
assertEquals(stringifyArgs([nestedObj], { depth: 0 }), "[Object]");
assertEquals(
stringifyArgs([nestedObj], { depth: null }),
"{ a: { b: { c: { d: [Object] } } } }"
);
// test inspect is working the same way
assertEquals(
inspect(nestedObj, { depth: 4 }),
"{ a: { b: { c: { d: [Object] } } } }"
);
});
unitTest(function consoleTestWithCustomInspector(): void {
class A {
[customInspect](): string {
return "b";
}
}
assertEquals(stringify(new A()), "b");
});
unitTest(function consoleTestWithCustomInspectorError(): void {
class A {
[customInspect](): string {
throw new Error("BOOM");
return "b";
}
}
assertEquals(stringify(new A()), "A {}");
class B {
constructor(public field: { a: string }) {}
[customInspect](): string {
return this.field.a;
}
}
assertEquals(stringify(new B({ a: "a" })), "a");
assertEquals(stringify(B.prototype), "{}");
});
unitTest(function consoleTestWithIntegerFormatSpecifier(): void {
assertEquals(stringify("%i"), "%i");
assertEquals(stringify("%i", 42.0), "42");
assertEquals(stringify("%i", 42), "42");
assertEquals(stringify("%i", "42"), "42");
assertEquals(stringify("%i", "42.0"), "42");
assertEquals(stringify("%i", 1.5), "1");
assertEquals(stringify("%i", -0.5), "0");
assertEquals(stringify("%i", ""), "NaN");
assertEquals(stringify("%i", Symbol()), "NaN");
assertEquals(stringify("%i %d", 42, 43), "42 43");
assertEquals(stringify("%d %i", 42), "42 %i");
assertEquals(stringify("%d", 12345678901234567890123), "1");
assertEquals(
stringify("%i", 12345678901234567890123n),
"12345678901234567890123n"
);
});
unitTest(function consoleTestWithFloatFormatSpecifier(): void {
assertEquals(stringify("%f"), "%f");
assertEquals(stringify("%f", 42.0), "42");
assertEquals(stringify("%f", 42), "42");
assertEquals(stringify("%f", "42"), "42");
assertEquals(stringify("%f", "42.0"), "42");
assertEquals(stringify("%f", 1.5), "1.5");
assertEquals(stringify("%f", -0.5), "-0.5");
assertEquals(stringify("%f", Math.PI), "3.141592653589793");
assertEquals(stringify("%f", ""), "NaN");
assertEquals(stringify("%f", Symbol("foo")), "NaN");
assertEquals(stringify("%f", 5n), "5");
assertEquals(stringify("%f %f", 42, 43), "42 43");
assertEquals(stringify("%f %f", 42), "42 %f");
});
unitTest(function consoleTestWithStringFormatSpecifier(): void {
assertEquals(stringify("%s"), "%s");
assertEquals(stringify("%s", undefined), "undefined");
assertEquals(stringify("%s", "foo"), "foo");
assertEquals(stringify("%s", 42), "42");
assertEquals(stringify("%s", "42"), "42");
assertEquals(stringify("%s %s", 42, 43), "42 43");
assertEquals(stringify("%s %s", 42), "42 %s");
assertEquals(stringify("%s", Symbol("foo")), "Symbol(foo)");
});
unitTest(function consoleTestWithObjectFormatSpecifier(): void {
assertEquals(stringify("%o"), "%o");
assertEquals(stringify("%o", 42), "42");
assertEquals(stringify("%o", "foo"), "foo");
assertEquals(stringify("o: %o, a: %O", {}, []), "o: {}, a: []");
assertEquals(stringify("%o", { a: 42 }), "{ a: 42 }");
assertEquals(
stringify("%o", { a: { b: { c: { d: new Set([1]) } } } }),
"{ a: { b: { c: { d: [Set] } } } }"
);
});
unitTest(function consoleTestWithVariousOrInvalidFormatSpecifier(): void {
assertEquals(stringify("%s:%s"), "%s:%s");
assertEquals(stringify("%i:%i"), "%i:%i");
assertEquals(stringify("%d:%d"), "%d:%d");
assertEquals(stringify("%%s%s", "foo"), "%sfoo");
assertEquals(stringify("%s:%s", undefined), "undefined:%s");
assertEquals(stringify("%s:%s", "foo", "bar"), "foo:bar");
assertEquals(stringify("%s:%s", "foo", "bar", "baz"), "foo:bar baz");
assertEquals(stringify("%%%s%%", "hi"), "%hi%");
assertEquals(stringify("%d:%d", 12), "12:%d");
assertEquals(stringify("%i:%i", 12), "12:%i");
assertEquals(stringify("%f:%f", 12), "12:%f");
assertEquals(stringify("o: %o, a: %o", {}), "o: {}, a: %o");
assertEquals(stringify("abc%", 1), "abc% 1");
});
unitTest(function consoleTestCallToStringOnLabel(): void {
const methods = ["count", "countReset", "time", "timeLog", "timeEnd"];
mockConsole(console => {
for (const method of methods) {
let hasCalled = false;
// @ts-ignore
console[method]({
toString(): void {
hasCalled = true;
}
});
assertEquals(hasCalled, true);
}
});
});
unitTest(function consoleTestError(): void {
class MyError extends Error {
constructor(errStr: string) {
super(errStr);
this.name = "MyError";
}
}
try {
throw new MyError("This is an error");
} catch (e) {
assert(
stringify(e)
.split("\n")[0] // error has been caught
.includes("MyError: This is an error")
);
}
});
unitTest(function consoleTestClear(): void {
const stdoutWriteSync = stdout.writeSync;
const uint8 = new TextEncoder().encode("\x1b[1;1H" + "\x1b[0J");
let buffer = new Uint8Array(0);
stdout.writeSync = (u8: Uint8Array): Promise<number> => {
const tmp = new Uint8Array(buffer.length + u8.length);
tmp.set(buffer, 0);
tmp.set(u8, buffer.length);
buffer = tmp;
return writeSync(stdout.rid, u8);
};
console.clear();
stdout.writeSync = stdoutWriteSync;
assertEquals(buffer, uint8);
});
// Test bound this issue
unitTest(function consoleDetachedLog(): void {
mockConsole(console => {
const log = console.log;
const dir = console.dir;
const dirxml = console.dirxml;
const debug = console.debug;
const info = console.info;
const warn = console.warn;
const error = console.error;
const consoleAssert = console.assert;
const consoleCount = console.count;
const consoleCountReset = console.countReset;
const consoleTable = console.table;
const consoleTime = console.time;
const consoleTimeLog = console.timeLog;
const consoleTimeEnd = console.timeEnd;
const consoleGroup = console.group;
const consoleGroupEnd = console.groupEnd;
const consoleClear = console.clear;
log("Hello world");
dir("Hello world");
dirxml("Hello world");
debug("Hello world");
info("Hello world");
warn("Hello world");
error("Hello world");
consoleAssert(true);
consoleCount("Hello world");
consoleCountReset("Hello world");
consoleTable({ test: "Hello world" });
consoleTime("Hello world");
consoleTimeLog("Hello world");
consoleTimeEnd("Hello world");
consoleGroup("Hello world");
consoleGroupEnd();
consoleClear();
});
});
class StringBuffer {
chunks: string[] = [];
add(x: string): void {
this.chunks.push(x);
}
toString(): string {
return this.chunks.join("");
}
}
type ConsoleExamineFunc = (
// eslint-disable-next-line @typescript-eslint/no-explicit-any
csl: any,
out: StringBuffer,
err?: StringBuffer,
both?: StringBuffer
) => void;
function mockConsole(f: ConsoleExamineFunc): void {
const out = new StringBuffer();
const err = new StringBuffer();
const both = new StringBuffer();
const csl = new Console(
(x: string, isErr: boolean, printsNewLine: boolean): void => {
const content = x + (printsNewLine ? "\n" : "");
const buf = isErr ? err : out;
buf.add(content);
both.add(content);
}
);
f(csl, out, err, both);
}
// console.group test
unitTest(function consoleGroup(): void {
mockConsole((console, out): void => {
console.group("1");
console.log("2");
console.group("3");
console.log("4");
console.groupEnd();
console.groupEnd();
console.log("5");
console.log("6");
assertEquals(
out.toString(),
`1
2
3
4
5
6
`
);
});
});
// console.group with console.warn test
unitTest(function consoleGroupWarn(): void {
mockConsole((console, _out, _err, both): void => {
assert(both);
console.warn("1");
console.group();
console.warn("2");
console.group();
console.warn("3");
console.groupEnd();
console.warn("4");
console.groupEnd();
console.warn("5");
console.warn("6");
console.warn("7");
assertEquals(
both.toString(),
`1
2
3
4
5
6
7
`
);
});
});
// console.table test
unitTest(function consoleTable(): void {
mockConsole((console, out): void => {
console.table({ a: "test", b: 1 });
assertEquals(
out.toString(),
`┌─────────┬────────┐
│ (index) │ Values │
├─────────┼────────┤
│ a │ "test" │
│ b │ 1 │
└─────────┴────────┘
`
);
});
mockConsole((console, out): void => {
console.table({ a: { b: 10 }, b: { b: 20, c: 30 } }, ["c"]);
assertEquals(
out.toString(),
`┌─────────┬────┐
│ (index) │ c │
├─────────┼────┤
│ a │ │
│ b │ 30 │
└─────────┴────┘
`
);
});
mockConsole((console, out): void => {
console.table([1, 2, [3, [4]], [5, 6], [[7], [8]]]);
assertEquals(
out.toString(),
`┌─────────┬───────┬───────┬────────┐
│ (index) │ 0 │ 1 │ Values │
├─────────┼───────┼───────┼────────┤
│ 0 │ │ │ 1 │
│ 1 │ │ │ 2 │
│ 2 │ 3 │ [ 4 ] │ │
│ 3 │ 5 │ 6 │ │
│ 4 │ [ 7 ] │ [ 8 ] │ │
└─────────┴───────┴───────┴────────┘
`
);
});
mockConsole((console, out): void => {
console.table(new Set([1, 2, 3, "test"]));
assertEquals(
out.toString(),
`┌───────────────────┬────────┐
│ (iteration index) │ Values │
├───────────────────┼────────┤
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │ 3 │
│ 3 │ "test" │
└───────────────────┴────────┘
`
);
});
mockConsole((console, out): void => {
console.table(
new Map([
[1, "one"],
[2, "two"]
])
);
assertEquals(
out.toString(),
`┌───────────────────┬─────┬────────┐
│ (iteration index) │ Key │ Values │
├───────────────────┼─────┼────────┤
│ 0 │ 1 │ "one" │
│ 1 │ 2 │ "two" │
└───────────────────┴─────┴────────┘
`
);
});
mockConsole((console, out): void => {
console.table({
a: true,
b: { c: { d: 10 }, e: [1, 2, [5, 6]] },
f: "test",
g: new Set([1, 2, 3, "test"]),
h: new Map([[1, "one"]])
});
assertEquals(
out.toString(),
`┌─────────┬───────────┬───────────────────┬────────┐
│ (index) │ c │ e │ Values │
├─────────┼───────────┼───────────────────┼────────┤
│ a │ │ │ true │
│ b │ { d: 10 } │ [ 1, 2, [Array] ] │ │
│ f │ │ │ "test" │
│ g │ │ │ │
│ h │ │ │ │
└─────────┴───────────┴───────────────────┴────────┘
`
);
});
mockConsole((console, out): void => {
console.table([
1,
"test",
false,
{ a: 10 },
["test", { b: 20, c: "test" }]
]);
assertEquals(
out.toString(),
`┌─────────┬────────┬──────────────────────┬────┬────────┐
│ (index) │ 0 │ 1 │ a │ Values │
├─────────┼────────┼──────────────────────┼────┼────────┤
│ 0 │ │ │ │ 1 │
│ 1 │ │ │ │ "test" │
│ 2 │ │ │ │ false │
│ 3 │ │ │ 10 │ │
│ 4 │ "test" │ { b: 20, c: "test" } │ │ │
└─────────┴────────┴──────────────────────┴────┴────────┘
`
);
});
mockConsole((console, out): void => {
console.table([]);
assertEquals(
out.toString(),
`┌─────────┐
│ (index) │
├─────────┤
└─────────┘
`
);
});
mockConsole((console, out): void => {
console.table({});
assertEquals(
out.toString(),
`┌─────────┐
│ (index) │
├─────────┤
└─────────┘
`
);
});
mockConsole((console, out): void => {
console.table(new Set());
assertEquals(
out.toString(),
`┌───────────────────┐
│ (iteration index) │
├───────────────────┤
└───────────────────┘
`
);
});
mockConsole((console, out): void => {
console.table(new Map());
assertEquals(
out.toString(),
`┌───────────────────┐
│ (iteration index) │
├───────────────────┤
└───────────────────┘
`
);
});
mockConsole((console, out): void => {
console.table("test");
assertEquals(out.toString(), "test\n");
});
});
// console.log(Error) test
unitTest(function consoleLogShouldNotThrowError(): void {
mockConsole(console => {
let result = 0;
try {
console.log(new Error("foo"));
result = 1;
} catch (e) {
result = 2;
}
assertEquals(result, 1);
});
// output errors to the console should not include "Uncaught"
mockConsole((console, out): void => {
console.log(new Error("foo"));
assertEquals(out.toString().includes("Uncaught"), false);
});
});
// console.dir test
unitTest(function consoleDir(): void {
mockConsole((console, out): void => {
console.dir("DIR");
assertEquals(out.toString(), "DIR\n");
});
mockConsole((console, out): void => {
console.dir("DIR", { indentLevel: 2 });
assertEquals(out.toString(), " DIR\n");
});
});
// console.dir test
unitTest(function consoleDirXml(): void {
mockConsole((console, out): void => {
console.dirxml("DIRXML");
assertEquals(out.toString(), "DIRXML\n");
});
mockConsole((console, out): void => {
console.dirxml("DIRXML", { indentLevel: 2 });
assertEquals(out.toString(), " DIRXML\n");
});
});
// console.trace test
unitTest(function consoleTrace(): void {
mockConsole((console, _out, err): void => {
console.trace("%s", "custom message");
assert(err);
assert(err.toString().includes("Trace: custom message"));
});
});