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Improve KVO bindings. Add two way KVO bindings. Fix #19.
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Srđan Rašić
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Mar 4, 2015
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| // | ||
| // FoundationTests.swift | ||
| // Bond | ||
| // | ||
| // Created by Srdan Rasic on 04/03/15. | ||
| // Copyright (c) 2015 Bond. All rights reserved. | ||
| // | ||
|
|
||
| import XCTest | ||
| import Bond | ||
|
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| @objc class User: NSObject { | ||
| dynamic var name: NSString? | ||
| dynamic var height: NSNumber = NSNumber(float: 0.0) | ||
|
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| init(name: NSString?) { | ||
| self.name = name | ||
| super.init() | ||
| } | ||
| } | ||
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| class FoundationTests: XCTestCase { | ||
|
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| func testKVO() { | ||
| let user = User(name: nil) | ||
| let dynamic: Dynamic<String> = dynamicObservableFor(user, keyPath: "name", defaultValue: "") | ||
|
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| XCTAssert(dynamic.value == "", "Value after initialization.") | ||
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| user.name = "Spock" | ||
| XCTAssert(dynamic.value == "Spock", "Value after property change.") | ||
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| user.name = nil | ||
| XCTAssert(dynamic.value == "", "Value after property change.") | ||
| } | ||
|
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| func testKVO2() { | ||
| let user = User(name: nil) | ||
| let dynamic: Dynamic<String?> = dynamicObservableFor(user, keyPath: "name", from: { $0 as? String }, to: { $0 }) | ||
|
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| XCTAssert(dynamic.value == nil, "Value after initialization.") | ||
|
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| user.name = "Spock" | ||
| XCTAssert(dynamic.value == "Spock", "Value after property change.") | ||
|
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| user.name = nil | ||
| XCTAssert(dynamic.value == nil, "Value after property change.") | ||
|
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| dynamic.value = "Jim" | ||
| XCTAssert(user.name == "Jim", "Value after dynamic change.") | ||
| } | ||
|
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| func testKVO3() { | ||
| let user = User(name: nil) | ||
| let dynamic: Dynamic<String> = dynamicObservableFor(user, keyPath: "name", from: { ($0 as? String) ?? "" }, to: { $0 }) | ||
|
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| XCTAssert(dynamic.value == "", "Value after initialization.") | ||
|
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| user.name = "Spock" | ||
| XCTAssert(dynamic.value == "Spock", "Value after property change.") | ||
|
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| user.name = nil | ||
| XCTAssert(dynamic.value == "", "Value after property change.") | ||
|
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| dynamic.value = "Jim" | ||
| XCTAssert(user.name == "Jim", "Value after dynamic change.") | ||
| } | ||
|
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| func testKVO4() { | ||
| let user = User(name: nil) | ||
| let height: Dynamic<Float> = dynamicObservableFor(user, keyPath: "height", from: { ($0 as NSNumber).floatValue }, to: { NSNumber(float: $0) }) | ||
|
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| XCTAssert(abs(height.value - 0) < 0.0001, "Value after initialization.") | ||
|
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| user.height = 6.9 | ||
| XCTAssert(abs(height.value - 6.9) < 0.0001, "Value after property change.") | ||
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| height.value = 7.1 | ||
| XCTAssert(abs(user.height.floatValue - 7.1) < 0.0001, "Value after dynamic change.") | ||
| } | ||
| } |
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