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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
class TestEnergyFormatter: XCTestCase {
let formatter: EnergyFormatter = EnergyFormatter()
override func setUp() {
formatter.numberFormatter.locale = Locale(identifier: "en_US")
formatter.isForFoodEnergyUse = false
super.setUp()
}
func test_stringFromJoulesJoulesRegion() {
formatter.numberFormatter.locale = Locale(identifier: "de_DE")
XCTAssertEqual(formatter.string(fromJoules: -100000), "-100 kJ")
XCTAssertEqual(formatter.string(fromJoules: -1), "-0,001 kJ")
XCTAssertEqual(formatter.string(fromJoules: 100000000), "100.000 kJ")
}
func test_stringFromJoulesCaloriesRegion() {
XCTAssertEqual(formatter.string(fromJoules: -10000), "-2.39 kcal")
XCTAssertEqual(formatter.string(fromJoules: 0.00001), "0 cal")
XCTAssertEqual(formatter.string(fromJoules: 0.0001), "0 cal")
XCTAssertEqual(formatter.string(fromJoules: 1), "0.239 cal")
XCTAssertEqual(formatter.string(fromJoules: 10000), "2.39 kcal")
}
func test_stringFromJoulesCaloriesRegionFoodEnergyUse() {
formatter.isForFoodEnergyUse = true
XCTAssertEqual(formatter.string(fromJoules: -1), "-0 Cal")
XCTAssertEqual(formatter.string(fromJoules: 0.001), "0 cal")
XCTAssertEqual(formatter.string(fromJoules: 0.1), "0.024 cal")
XCTAssertEqual(formatter.string(fromJoules: 1), "0.239 cal")
XCTAssertEqual(formatter.string(fromJoules: 10000), "2.39 Cal")
}
func test_stringFromValue() {
formatter.unitStyle = .long
XCTAssertEqual(formatter.string(fromValue: 0.002, unit: .kilojoule),"0.002 kilojoules")
XCTAssertEqual(formatter.string(fromValue:0, unit: .joule), "0 joules")
XCTAssertEqual(formatter.string(fromValue:1, unit: .joule), "1 joule")
formatter.unitStyle = .short
XCTAssertEqual(formatter.string(fromValue: 0.00000001, unit: .kilocalorie), "0kcal")
XCTAssertEqual(formatter.string(fromValue: 2.4, unit: .calorie), "2.4cal")
XCTAssertEqual(formatter.string(fromValue: 123456, unit: .calorie), "123,456cal")
formatter.unitStyle = .medium
formatter.isForFoodEnergyUse = true
XCTAssertEqual(formatter.string(fromValue: 0.00000001, unit: .calorie), "0 cal")
XCTAssertEqual(formatter.string(fromValue: 987654321, unit: .kilocalorie), "987,654,321 Cal")
formatter.isForFoodEnergyUse = false
XCTAssertEqual(formatter.string(fromValue: 5.3, unit: .kilocalorie), "5.3 kcal")
XCTAssertEqual(formatter.string(fromValue: 873.2345, unit: .calorie), "873.234 cal")
}
func test_unitStringFromJoules() {
var unit = EnergyFormatter.Unit.joule
XCTAssertEqual(formatter.unitString(fromJoules: -100000, usedUnit: &unit), "kcal")
XCTAssertEqual(unit, .kilocalorie)
XCTAssertEqual(formatter.unitString(fromJoules: 0, usedUnit: &unit), "kcal")
XCTAssertEqual(unit, .kilocalorie)
XCTAssertEqual(formatter.unitString(fromJoules: 0.0001, usedUnit: &unit), "cal")
XCTAssertEqual(unit, .calorie)
XCTAssertEqual(formatter.unitString(fromJoules: 4184, usedUnit: &unit), "cal")
XCTAssertEqual(unit, .calorie)
XCTAssertEqual(formatter.unitString(fromJoules: 4185, usedUnit: &unit), "kcal")
XCTAssertEqual(unit, .kilocalorie)
XCTAssertEqual(formatter.unitString(fromJoules: 100000, usedUnit: &unit), "kcal")
XCTAssertEqual(unit, .kilocalorie)
formatter.numberFormatter.locale = Locale(identifier: "de_DE")
XCTAssertEqual(formatter.unitString(fromJoules: -100000, usedUnit: &unit), "kJ")
XCTAssertEqual(unit, .kilojoule)
XCTAssertEqual(formatter.unitString(fromJoules: 0, usedUnit: &unit), "kJ")
XCTAssertEqual(unit, .kilojoule)
XCTAssertEqual(formatter.unitString(fromJoules: 0.0001, usedUnit: &unit), "J")
XCTAssertEqual(unit, .joule)
XCTAssertEqual(formatter.unitString(fromJoules: 1000, usedUnit: &unit), "J")
XCTAssertEqual(unit, .joule)
XCTAssertEqual(formatter.unitString(fromJoules: 1000.01, usedUnit: &unit), "kJ")
XCTAssertEqual(unit, .kilojoule)
}
func test_unitStringFromValue() {
formatter.isForFoodEnergyUse = true
formatter.unitStyle = .long
XCTAssertEqual(formatter.unitString(fromValue: 1, unit: .kilocalorie), "Calories")
XCTAssertEqual(formatter.unitString(fromValue: 2, unit: .kilocalorie), "Calories")
formatter.unitStyle = .medium
XCTAssertEqual(formatter.unitString(fromValue: 0.00000001, unit: .kilocalorie), "Cal")
XCTAssertEqual(formatter.unitString(fromValue: 987654321, unit: .kilocalorie), "Cal")
formatter.unitStyle = .short
XCTAssertEqual(formatter.unitString(fromValue: 0.00000001, unit: .calorie), "cal")
XCTAssertEqual(formatter.unitString(fromValue: 123456, unit: .kilocalorie), "C")
formatter.isForFoodEnergyUse = false
formatter.unitStyle = .long
XCTAssertEqual(formatter.unitString(fromValue: 0.002, unit: .kilojoule), "kilojoules")
formatter.unitStyle = .medium
XCTAssertEqual(formatter.unitString(fromValue: 0.00000001, unit: .kilocalorie), "kcal")
XCTAssertEqual(formatter.unitString(fromValue: 987654321, unit: .kilocalorie), "kcal")
formatter.unitStyle = .short
XCTAssertEqual(formatter.unitString(fromValue: 0.00000001, unit: .calorie), "cal")
XCTAssertEqual(formatter.unitString(fromValue: 123456, unit: .joule), "J")
}
}
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