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LibJS: Add tests for String.prototype.repeat()

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Linus Groh 2020-04-19 22:35:32 +01:00 • committed by Andreas Kling
parent a893c6ff0d
commit d3e3f5b421
1 changed files with 37 additions and 0 deletions
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37
Libraries/LibJS/Tests/String.prototype.repeat.js Normal file
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load("test-common.js");
try {
assert(String.prototype.repeat.length === 1);
try {
"foo".repeat(-1);
assertNotReached();
} catch (e) {
assert(e.name === "RangeError");
assert(e.message === "repeat count must be a positive number");
}
try {
"foo".repeat(Infinity);
assertNotReached();
} catch (e) {
assert(e.name === "RangeError");
assert(e.message === "repeat count must be a finite number");
}
assert("foo".repeat(0) === "");
assert("foo".repeat(1) === "foo");
assert("foo".repeat(2) === "foofoo");
assert("foo".repeat(3) === "foofoofoo");
assert("foo".repeat(3.1) === "foofoofoo");
assert("foo".repeat(3.5) === "foofoofoo");
assert("foo".repeat(3.9) === "foofoofoo");
assert("foo".repeat(null) === "");
assert("foo".repeat(undefined) === "");
assert("foo".repeat([]) === "");
assert("foo".repeat("") === "");
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}