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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
import Foundation
import XCTest
class StringExtensionsTests: XCTestCase {
func testEllipsize() {
// Odd maxLength. Note that we ellipsize with a Unicode join character to avoid wrapping.
XCTAssertEqual("abcd…\u{2060}fgh", "abcdefgh".ellipsize(maxLength: 7))
// Even maxLength.
XCTAssertEqual("abcd…\u{2060}ijkl", "abcdefghijkl".ellipsize(maxLength: 8))
// String shorter than maxLength.
XCTAssertEqual("abcd", "abcd".ellipsize(maxLength: 7))
// Empty String.
XCTAssertEqual("", "".ellipsize(maxLength: 8))
// maxLength < 2.
XCTAssertEqual("abcdefgh", "abcdefgh".ellipsize(maxLength: 0))
}
func testStringByTrimmingLeadingCharactersInSet() {
XCTAssertEqual("foo ", " foo ".stringByTrimmingLeadingCharactersInSet(.whitespaces))
XCTAssertEqual("foo456", "123foo456".stringByTrimmingLeadingCharactersInSet(.decimalDigits))
XCTAssertEqual("", "123456".stringByTrimmingLeadingCharactersInSet(.decimalDigits))
}
func testStringSplitWithNewline() {
XCTAssertEqual("", "".stringSplitWithNewline())
XCTAssertEqual("foo", "foo".stringSplitWithNewline())
XCTAssertEqual("aaa\n bbb", "aaa bbb".stringSplitWithNewline())
XCTAssertEqual("Mark as\n Read", "Mark as Read".stringSplitWithNewline())
XCTAssertEqual("aa\n bbbbbb", "aa bbbbbb".stringSplitWithNewline())
}
func testPercentEscaping() {
func roundtripTest(_ input: String, _ expected: String, file: StaticString = #file, line: UInt = #line) {
let observed = input.escape()!
XCTAssertEqual(observed, expected, "input is \(input)", file: file, line: line)
let roundtrip = observed.unescape()
XCTAssertEqual(roundtrip, input, "encoded is \(observed)", file: file, line: line)
}
}
}