Use rewind/fast forward emojis to denote selection endpoints in tests. The emoji arrows don't render in Chrome, and these emoji stick out better than a few other options.

Author: DaveEwing

Sources/_SwiftFormatTestSupport/MarkedText.swift

@@ -21,7 +21,7 @@ public struct MarkedText {
   /// The text with all markers removed.
   public let textWithoutMarkers: String
 
-  /// If the marked text contains "➡️" and "⬅️", they're used to create a selection
+  /// If the marked text contains "⏩" and "⏪", they're used to create a selection
   public var selection: Selection?
 
   /// Creates a new `MarkedText` value by extracting emoji markers from the given text.
@@ -35,9 +35,9 @@ public struct MarkedText {
       text += markedText[lastIndex..<marker.range.lowerBound]
       lastIndex = marker.range.upperBound
 
-      if marker.name == "➡️" {
+      if marker.name == "⏩" {
         lastRangeStart = text.utf8.count
-      } else if marker.name == "⬅️" {
+      } else if marker.name == "⏪" {
         ranges.append(Selection.Range(start: lastRangeStart, end: text.utf8.count))
       } else {
         assert(markers[marker.name] == nil, "Marker names must be unique")
@@ -90,7 +90,7 @@ extension Character {
   /// location marker.
   fileprivate var isMarkerEmoji: Bool {
     switch self {
-    case "0️⃣", "1️⃣", "2️⃣", "3️⃣", "4️⃣", "5️⃣", "6️⃣", "7️⃣", "8️⃣", "9️⃣", "🔟", "ℹ️", "➡️", "⬅️":
+    case "0️⃣", "1️⃣", "2️⃣", "3️⃣", "4️⃣", "5️⃣", "6️⃣", "7️⃣", "8️⃣", "9️⃣", "🔟", "ℹ️", "⏩", "⏪":
       return true
     default: return false
     }

Tests/SwiftFormatTests/PrettyPrint/AccessorTests.swift

@@ -84,10 +84,10 @@ final class AccessorTests: PrettyPrintTestCase {
   func testBasicAccessorsWithSelections() {
     let input =
       """
-      ➡️struct MyStruct {
+      ⏩struct MyStruct {
         var memberValue: Int
         var someValue: Int { get { return memberValue + 2 } set(newValue) { memberValue = newValue } }
-      }⬅️
+      }⏪
       struct MyStruct {
         var memberValue: Int
         var someValue: Int { @objc get { return memberValue + 2 } @objc(isEnabled) set(newValue) { memberValue = newValue } }
@@ -102,7 +102,7 @@ final class AccessorTests: PrettyPrintTestCase {
           }
           set(newValue) {
             memberValue = newValue && otherValue
-            ➡️memberValue2 = newValue / 2 && andableValue⬅️
+            ⏩memberValue2 = newValue / 2 && andableValue⏪
           }
         }
       }

Tests/SwiftFormatTests/PrettyPrint/CommentTests.swift

@@ -278,24 +278,24 @@ final class CommentTests: PrettyPrintTestCase {
     let input =
       """
       // Array comment
-      let a = [➡️4⬅️56, // small comment
+      let a = [⏩4⏪56, // small comment
         789]
 
       // Dictionary comment
-      let b = ["abc": ➡️456, // small comment
-        "def": 789]⬅️
+      let b = ["abc": ⏩456, // small comment
+        "def": 789]⏪
 
       // Trailing comment
       let c = [123, 456  // small comment
       ]
 
-      ➡️/* Array comment */
+      ⏩/* Array comment */
       let a = [456, /* small comment */
         789]
 
        /* Dictionary comment */
       let b = ["abc": 456,        /* small comment */
-        "def": 789]⬅️
+        "def": 789]⏪
       """
 
     let expected =

Tests/SwiftFormatTests/PrettyPrint/Selections.swift

@@ -5,11 +5,11 @@ final class Selections: PrettyPrintTestCase {
   func testSelectAll() {
     let input =
       """
-      ➡️func foo() {
+      ⏩func foo() {
       if let SomeReallyLongVar = Some.More.Stuff(), let a = myfunc() {
         // do stuff
       }
-      }⬅️
+      }⏪
       """
 
     let expected =
@@ -30,7 +30,7 @@ final class Selections: PrettyPrintTestCase {
       """
       func foo() {
       if let SomeReallyLongVar = Some.More.Stuff(), let a = myfunc() {
-      ➡️// do stuff⬅️
+      ⏩// do stuff⏪
       }
       }
       """
@@ -53,7 +53,7 @@ final class Selections: PrettyPrintTestCase {
       """
       func foo() {
       if let SomeReallyLongVar = Some.More.Stuff(), let a = myfunc() {
-      ➡️⬅️// do stuff
+      ⏩⏪// do stuff
       }
       }
       """
@@ -75,7 +75,7 @@ final class Selections: PrettyPrintTestCase {
     let input =
       """
       func foo() {
-      if let SomeReallyLongVar ➡️ =   ⬅️Some.More.Stuff(), let a = myfunc() {
+      if let SomeReallyLongVar ⏩ =   ⏪Some.More.Stuff(), let a = myfunc() {
       // do stuff
       }
       }
@@ -101,7 +101,7 @@ final class Selections: PrettyPrintTestCase {
     let input =
       """
       func foo() {
-      ➡️if let SomeReallyLongVar  =   Some.More.Stuff(), let a = myfunc() ⬅️{
+      ⏩if let SomeReallyLongVar  =   Some.More.Stuff(), let a = myfunc() ⏪{
       // do stuff
       }
       }
@@ -124,7 +124,7 @@ final class Selections: PrettyPrintTestCase {
     let input =
       """
       func foo() {
-      if let SomeReallyLongVar = ➡️Some.More.Stuff(), let a = myfunc()⬅️ {
+      if let SomeReallyLongVar = ⏩Some.More.Stuff(), let a = myfunc()⏪ {
       // do stuff
       }
       }
@@ -149,8 +149,8 @@ final class Selections: PrettyPrintTestCase {
       """
       func foo() {
       if let SomeReallyLongVar = Some.More.Stuff(), let a = myfunc() {
-      ➡️// do stuff
-      // do more stuff⬅️
+      ⏩// do stuff
+      // do more stuff⏪
       var i = 0
       }
       }
@@ -178,7 +178,7 @@ final class Selections: PrettyPrintTestCase {
       if let SomeReallyLongVar = Some.More.Stuff(), let a = myfunc() {
       // do stuff
       // do more stuff
-      ➡️⬅️var i = 0
+      ⏩⏪var i = 0
       }
       }
       """
@@ -204,9 +204,9 @@ final class Selections: PrettyPrintTestCase {
       """
       func foo() {
       if let SomeReallyLongVar = Some.More.Stuff(), let a = myfunc() {
-      ➡️⬅️// do stuff
+      ⏩⏪// do stuff
       // do more stuff
-      ➡️⬅️var i = 0
+      ⏩⏪var i = 0
       }
       }
       """