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/*
* This file is part of GNU Taler
* (C) 2022 Taler Systems S.A.
*
* GNU Taler is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 3, or (at your option) any later version.
*
* GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import XCTest
@testable import taler_swift
class AmountTests: XCTestCase {
func testParsing() {
var str = "TESTKUDOS:23.42"
var amt = try! Amount(fromString: str)
XCTAssert(str == amt.description)
XCTAssert("TESTKUDOS" == amt.currency)
XCTAssert(23 == amt.value)
XCTAssert(UInt64(0.42 * 1e8) == amt.fraction)
str = "EUR:500000000.00000001"
amt = try! Amount(fromString: str)
XCTAssert(str == amt.description)
XCTAssert("EUR" == amt.currency)
XCTAssert(500000000 == amt.value)
XCTAssert(1 == amt.fraction)
str = "EUR:1500000000.00000003"
amt = try! Amount(fromString: str)
XCTAssert(str == amt.description)
XCTAssert("EUR" == amt.currency)
XCTAssert(1500000000 == amt.value)
XCTAssert(3 == amt.fraction)
let maxValue = 4503599627370496
str = "TESTKUDOS123:\(maxValue).99999999"
amt = try! Amount(fromString: str)
XCTAssert(str == amt.description)
XCTAssert("TESTKUDOS123" == amt.currency)
XCTAssert(maxValue == amt.value)
XCTAssertThrowsError(try Amount(fromString: "TESTKUDOS1234:\(maxValue).99999999"))
XCTAssertThrowsError(try Amount(fromString: "TESTKUDOS123:\(maxValue + 1).99999999"))
XCTAssertThrowsError(try Amount(fromString: "TESTKUDOS123:\(maxValue).999999990"))
XCTAssertThrowsError(try Amount(fromString: "TESTKUDOS:0,5"))
XCTAssertThrowsError(try Amount(fromString: "+TESTKUDOS:0.5"))
XCTAssertThrowsError(try Amount(fromString: "0.5"))
XCTAssertThrowsError(try Amount(fromString: ":0.5"))
XCTAssertThrowsError(try Amount(fromString: "EUR::0.5"))
XCTAssertThrowsError(try Amount(fromString: "EUR:.5"))
}
func testAddition() {
XCTAssert(try Amount(fromString: "EUR:1") + Amount(fromString: "EUR:1") == Amount(fromString: "EUR:2"))
XCTAssert(try Amount(fromString: "EUR:1.5") + Amount(fromString: "EUR:1.5") == Amount(fromString: "EUR:3"))
XCTAssert(try Amount(fromString: "EUR:500000000.00000001") + Amount(fromString: "EUR:0.00000001") == Amount(fromString: "EUR:500000000.00000002"))
XCTAssertThrowsError(try Amount(fromString: "EUR:1") + Amount(fromString: "USD:1"))
XCTAssertThrowsError(try Amount(fromString: "EUR:4503599627370496.99999999") + Amount(fromString: "EUR:4503599627370496.99999999"))
XCTAssertThrowsError(try Amount(fromString: "EUR:4000000000000000") + Amount(fromString: "EUR:4000000000000000"))
}
func testSubtraction() {
XCTAssert(try Amount(fromString: "EUR:1") - Amount(fromString: "EUR:1") == Amount(fromString: "EUR:0"))
XCTAssert(try Amount(fromString: "EUR:3") - Amount(fromString: "EUR:1.5") == Amount(fromString: "EUR:1.5"))
XCTAssert(try Amount(fromString: "EUR:500000000.00000002") - Amount(fromString: "EUR:0.00000001") == Amount(fromString: "EUR:500000000.00000001"))
XCTAssertThrowsError(try Amount(fromString: "EUR:3") - Amount(fromString: "USD:1.5"))
XCTAssertThrowsError(try Amount(fromString: "EUR:23.42") - Amount(fromString: "EUR:42.23"))
XCTAssertThrowsError(try Amount(fromString: "EUR:0.5") - Amount(fromString: "EUR:0.50000001"))
}
func testMultiplication() {
XCTAssert(try Amount(fromString: "EUR:2") * 1 == Amount(fromString: "EUR:2"))
XCTAssert(try Amount(fromString: "EUR:1") * 2 == Amount(fromString: "EUR:2"))
XCTAssert(try Amount(fromString: "EUR:1.5") * 3 == Amount(fromString: "EUR:4.5"))
XCTAssert(try Amount(fromString: "EUR:1.11") * 0 == Amount(fromString: "EUR:0"))
XCTAssert(try Amount(fromString: "EUR:1.11") * 1 == Amount(fromString: "EUR:1.11"))
XCTAssert(try Amount(fromString: "EUR:1.11") * 2 == Amount(fromString: "EUR:2.22"))
XCTAssert(try Amount(fromString: "EUR:1.11") * 3 == Amount(fromString: "EUR:3.33"))
XCTAssert(try Amount(fromString: "EUR:1.11") * 4 == Amount(fromString: "EUR:4.44"))
XCTAssert(try Amount(fromString: "EUR:1.11") * 5 == Amount(fromString: "EUR:5.55"))
XCTAssert(try Amount(fromString: "EUR:500000000.00000001") * 3 == Amount(fromString: "EUR:1500000000.00000003"))
XCTAssertThrowsError(try Amount(fromString: "4000000000000000") * 2)
}
func testDivision() {
XCTAssert(try Amount(fromString: "EUR:2") / 1 == Amount(fromString: "EUR:2"))
XCTAssert(try Amount(fromString: "EUR:2") / 2 == Amount(fromString: "EUR:1"))
XCTAssert(try Amount(fromString: "EUR:4.5") / 3 == Amount(fromString: "EUR:1.5"))
XCTAssert(try Amount(fromString: "EUR:0") / 5 == Amount(fromString: "EUR:0"))
XCTAssert(try Amount(fromString: "EUR:1.11") / 1 == Amount(fromString: "EUR:1.11"))
XCTAssert(try Amount(fromString: "EUR:2.22") / 2 == Amount(fromString: "EUR:1.11"))
XCTAssert(try Amount(fromString: "EUR:3.33") / 3 == Amount(fromString: "EUR:1.11"))
XCTAssert(try Amount(fromString: "EUR:4.44") / 4 == Amount(fromString: "EUR:1.11"))
XCTAssert(try Amount(fromString: "EUR:5.55") / 5 == Amount(fromString: "EUR:1.11"))
XCTAssert(try Amount(fromString: "EUR:1500000000.00000003") / 3 == Amount(fromString: "EUR:500000000.00000001"))
XCTAssert(try Amount(fromString: "EUR:0.00000003") / 2 == Amount(fromString: "EUR:0.00000001"))
XCTAssertThrowsError(try Amount(fromString: "EUR:1") / 0)
}
func testZero() {
XCTAssert(try Amount(fromString: "EUR") == Amount.zero(currency: "EUR"))
XCTAssert(Amount.zero(currency: "EUR").isZero)
XCTAssert(try Amount(fromString: "EUR:0").isZero)
XCTAssert(try Amount(fromString: "EUR:0.0").isZero)
XCTAssert(try Amount(fromString: "EUR:0.00000").isZero)
XCTAssert(try (Amount(fromString: "EUR:1.001") - Amount(fromString: "EUR:1.001")).isZero)
XCTAssert(try !Amount(fromString: "EUR:0.00000001").isZero)
XCTAssert(try !Amount(fromString: "EUR:1.0").isZero)
XCTAssert(try !Amount(fromString: "EUR:0001.0").isZero)
}
func testComparison() {
XCTAssert(try Amount(fromString: "EUR:0") <= Amount(fromString: "EUR:0"))
XCTAssert(try Amount(fromString: "EUR:0") <= Amount(fromString: "EUR:0.00000001"))
XCTAssert(try Amount(fromString: "EUR:0") < Amount(fromString: "EUR:0.00000001"))
XCTAssert(try Amount(fromString: "EUR:0") < Amount(fromString: "EUR:1"))
XCTAssert(try Amount(fromString: "EUR:0") == Amount(fromString: "EUR:0"))
XCTAssert(try Amount(fromString: "EUR:42") == Amount(fromString: "EUR:42"))
XCTAssert(try Amount(fromString: "EUR:42.00000001") == Amount(fromString: "EUR:42.00000001"))
XCTAssert(try Amount(fromString: "EUR:42.00000001") >= Amount(fromString: "EUR:42.00000001"))
XCTAssert(try Amount(fromString: "EUR:42.00000002") >= Amount(fromString: "EUR:42.00000001"))
XCTAssert(try Amount(fromString: "EUR:42.00000002") > Amount(fromString: "EUR:42.00000001"))
XCTAssert(try Amount(fromString: "EUR:0.00000002") > Amount(fromString: "EUR:0.00000001"))
XCTAssert(try Amount(fromString: "EUR:0.00000001") > Amount(fromString: "EUR:0"))
XCTAssert(try Amount(fromString: "EUR:2") > Amount(fromString: "EUR:1"))
XCTAssertThrowsError(try Amount(fromString: "EUR:0.5") < Amount(fromString: "USD:0.50000001"))
}
}
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