Merge pull request #87 from iZettle/TextStyle_Equatable_BugFix

TextStyle Equatable bug fix

Author: mayur8657

Form.xcodeproj/project.pbxproj

@@ -35,6 +35,7 @@
 		CA6755EA1D4B6F1C000662FF /* SegmentedControlStyle.swift in Sources */ = {isa = PBXBuildFile; fileRef = CA6755E91D4B6F1C000662FF /* SegmentedControlStyle.swift */; };
 		CD49499B1C199520000176D3 /* (null) in Sources */ = {isa = PBXBuildFile; };
 		CDD2A5211F42DE7500E2B78B /* HighlightedTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = CDD2A5201F42DE7500E2B78B /* HighlightedTests.swift */; };
+		CFD2FFE3221323BF002D4D36 /* TextStyleTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = CFD2FFE2221323BF002D4D36 /* TextStyleTests.swift */; };
 		E63D89BF1DF59D6100AAB381 /* DisplayableString.swift in Sources */ = {isa = PBXBuildFile; fileRef = E63D89BE1DF59D6100AAB381 /* DisplayableString.swift */; };
 		F60102311DAE2D410020015B /* TableChange.swift in Sources */ = {isa = PBXBuildFile; fileRef = F60102301DAE2D410020015B /* TableChange.swift */; };
 		F604260A20B6A47E00BC4CAB /* ParentChildRelationalTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = F604260920B6A47E00BC4CAB /* ParentChildRelationalTests.swift */; };
@@ -139,6 +140,7 @@
 		B35F8B4B1F3783E400904E37 /* CollectionDiffTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CollectionDiffTests.swift; sourceTree = "<group>"; };
 		CA6755E91D4B6F1C000662FF /* SegmentedControlStyle.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = SegmentedControlStyle.swift; path = Form/SegmentedControlStyle.swift; sourceTree = "<group>"; };
 		CDD2A5201F42DE7500E2B78B /* HighlightedTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HighlightedTests.swift; sourceTree = "<group>"; };
+		CFD2FFE2221323BF002D4D36 /* TextStyleTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextStyleTests.swift; sourceTree = "<group>"; };
 		E63D89BE1DF59D6100AAB381 /* DisplayableString.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = DisplayableString.swift; path = Form/DisplayableString.swift; sourceTree = SOURCE_ROOT; };
 		F60102301DAE2D410020015B /* TableChange.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = TableChange.swift; path = Form/TableChange.swift; sourceTree = "<group>"; };
 		F604260920B6A47E00BC4CAB /* ParentChildRelationalTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ParentChildRelationalTests.swift; sourceTree = "<group>"; };
@@ -263,6 +265,7 @@
 		F62E45B51CABFB5300C6867E /* FormTests */ = {
 			isa = PBXGroup;
 			children = (
+				CFD2FFE2221323BF002D4D36 /* TextStyleTests.swift */,
 				CDD2A5201F42DE7500E2B78B /* HighlightedTests.swift */,
 				1C2881821F20EE2000666A21 /* SelectViewTests.swift */,
 				1CDD56A91D9C10D7004B0CA9 /* TableTests.swift */,
@@ -572,6 +575,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				CFD2FFE3221323BF002D4D36 /* TextStyleTests.swift in Sources */,
 				F604260A20B6A47E00BC4CAB /* ParentChildRelationalTests.swift in Sources */,
 				F6B81B9420CA906000B6AC39 /* NumberEditorTests.swift in Sources */,
 				CDD2A5211F42DE7500E2B78B /* HighlightedTests.swift in Sources */,

Form/TextStyle.swift

@@ -136,6 +136,11 @@ public extension TextStyle {
         var style = ((self.attribute(for: .paragraphStyle) as NSParagraphStyle?)?.mutableCopy() as? NSMutableParagraphStyle) ?? NSMutableParagraphStyle()
         update(&style)
         attributes[.paragraphStyle] = style
+
+        if equatableForAttribute[.paragraphStyle] == nil {
+            equatableForAttribute[.paragraphStyle] = { $0 as! NSMutableParagraphStyle == $1 as! NSMutableParagraphStyle }
+        }
+
     }
 
     /// Register a custom `transfrom` for `attribute`
@@ -159,7 +164,7 @@ extension TextStyle: Equatable {
         }
 
         for (attribute, left) in lhs.attributes {
-            guard let right = rhs.attributes[attribute], attribute != .paragraphStyle else {
+            guard let right = rhs.attributes[attribute] else {
                 return false
             }
 

FormTests/TextStyleTests.swift

@@ -0,0 +1,26 @@
+//
+//  TextStyleTests.swift
+//  FormTests
+//
+//  Created by Mayur Deshmukh on 12/02/19.
+//  Copyright © 2019 iZettle. All rights reserved.
+//
+
+import XCTest
+import Form
+
+class TextStyleTests: XCTestCase {
+
+    func testTextStyleEquality() {
+        let textStyle1 = TextStyle(font: .systemFont(ofSize: 14.0), color: .red, alignment: .left, lineBreakMode: .byWordWrapping)
+        let textStyle2 = TextStyle(font: .systemFont(ofSize: 14.0), color: .red, alignment: .left, lineBreakMode: .byWordWrapping)
+        let textStyle3 = TextStyle(font: .systemFont(ofSize: 14.0), color: .red, alignment: .left, lineBreakMode: .byCharWrapping)
+        let textStyle4 = TextStyle(font: .systemFont(ofSize: 15.0), color: .red, alignment: .left, lineBreakMode: .byWordWrapping)
+        let textStyle5 = TextStyle(font: .systemFont(ofSize: 14.0), color: .green, alignment: .left, lineBreakMode: .byWordWrapping)
+
+        XCTAssertEqual(textStyle1, textStyle2)
+        XCTAssertNotEqual(textStyle1, textStyle3)
+        XCTAssertNotEqual(textStyle1, textStyle4)
+        XCTAssertNotEqual(textStyle1, textStyle5)
+    }
+}