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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import { test, assert, assertEqual, equal } from "./mod.ts";
test(function testingEqual() {
assert(equal("world", "world"));
assert(!equal("hello", "world"));
assert(equal(5, 5));
assert(!equal(5, 6));
assert(equal(NaN, NaN));
assert(equal({ hello: "world" }, { hello: "world" }));
assert(!equal({ world: "hello" }, { hello: "world" }));
assert(
equal(
{ hello: "world", hi: { there: "everyone" } },
{ hello: "world", hi: { there: "everyone" } }
)
);
assert(
!equal(
{ hello: "world", hi: { there: "everyone" } },
{ hello: "world", hi: { there: "everyone else" } }
)
);
});
test(function testingAssertEqual() {
const a = Object.create(null);
a.b = "foo";
assertEqual(a, a);
assert(assert.equal === assertEqual);
});
test(function testingAssertEqualActualUncoercable() {
let didThrow = false;
const a = Object.create(null);
try {
assertEqual(a, "bar");
} catch (e) {
didThrow = true;
console.log(e.message);
assert(e.message === "actual: [Cannot display] expected: bar");
}
assert(didThrow);
});
test(function testingAssertEqualExpectedUncoercable() {
let didThrow = false;
const a = Object.create(null);
try {
assertEqual("bar", a);
} catch (e) {
didThrow = true;
console.log(e.message);
assert(e.message === "actual: bar expected: [Cannot display]");
}
assert(didThrow);
});
test(function testingAssertStrictEqual() {
const a = {};
const b = a;
assert.strictEqual(a, b);
});
test(function testingAssertNotStrictEqual() {
let didThrow = false;
const a = {};
const b = {};
try {
assert.strictEqual(a, b);
} catch (e) {
assert(e.message === "actual: [object Object] expected: [object Object]");
didThrow = true;
}
assert(didThrow);
});
test(function testingDoesThrow() {
let count = 0;
assert.throws(() => {
count++;
throw new Error();
});
assert(count === 1);
});
test(function testingDoesNotThrow() {
let count = 0;
let didThrow = false;
try {
assert.throws(() => {
count++;
console.log("Hello world");
});
} catch (e) {
assert(e.message === "Expected function to throw.");
didThrow = true;
}
assert(count === 1);
assert(didThrow);
});
test(function testingThrowsErrorType() {
let count = 0;
assert.throws(() => {
count++;
throw new TypeError();
}, TypeError);
assert(count === 1);
});
test(function testingThrowsNotErrorType() {
let count = 0;
let didThrow = false;
try {
assert.throws(() => {
count++;
throw new TypeError();
}, RangeError);
} catch (e) {
assert(e.message === `Expected error to be instance of "RangeError".`);
didThrow = true;
}
assert(count === 1);
assert(didThrow);
});
test(function testingThrowsMsgIncludes() {
let count = 0;
assert.throws(
() => {
count++;
throw new TypeError("Hello world!");
},
TypeError,
"world"
);
assert(count === 1);
});
test(function testingThrowsMsgNotIncludes() {
let count = 0;
let didThrow = false;
try {
assert.throws(
() => {
count++;
throw new TypeError("Hello world!");
},
TypeError,
"foobar"
);
} catch (e) {
assert(
e.message ===
`Expected error message to include "foobar", but got "Hello world!".`
);
didThrow = true;
}
assert(count === 1);
assert(didThrow);
});
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