From 06669137a9522cf009e11b6b3dd0af986d43dfbf Mon Sep 17 00:00:00 2001
From: pixelzoom <cmalley@pixelzoom.com>
Date: Mon, 11 Jul 2022 17:14:00 -0600
Subject: [PATCH] factor out TANDEM_NAME_SUFFIX,
 https://github.com/phetsims/tandem/issues/267

---
 js/AquaRadioButton.ts                | 8 +++++---
 js/buttons/RectangularRadioButton.ts | 6 ++++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/js/AquaRadioButton.ts b/js/AquaRadioButton.ts
index 137ceb98..b0819f15 100644
--- a/js/AquaRadioButton.ts
+++ b/js/AquaRadioButton.ts
@@ -52,7 +52,9 @@ export default class AquaRadioButton<T> extends Voicing( Node, 0 ) {
 
   private readonly disposeAquaRadioButton: () => void;
 
-  public static DEFAULT_RADIUS = 7;
+  public static readonly DEFAULT_RADIUS = 7;
+
+  public static readonly TANDEM_NAME_SUFFIX = 'RadioButton';
 
   /**
    * @mixes {Voicing}
@@ -96,8 +98,8 @@ export default class AquaRadioButton<T> extends Voicing( Node, 0 ) {
 
     }, providedOptions );
 
-    assert && assert( !options.tandem.supplied || options.tandem.name.endsWith( 'RadioButton' ),
-      `AquaRadioButton tandem.name must end with RadioButton: ${options.tandem.phetioID}` );
+    assert && assert( !options.tandem.supplied || options.tandem.name.endsWith( AquaRadioButton.TANDEM_NAME_SUFFIX ),
+      `AquaRadioButton tandem.name must end with ${AquaRadioButton.TANDEM_NAME_SUFFIX}: ${options.tandem.phetioID}` );
 
     super();
 
diff --git a/js/buttons/RectangularRadioButton.ts b/js/buttons/RectangularRadioButton.ts
index de51f56a..39921042 100644
--- a/js/buttons/RectangularRadioButton.ts
+++ b/js/buttons/RectangularRadioButton.ts
@@ -70,6 +70,8 @@ export default class RectangularRadioButton<T> extends RectangularButton {
 
   private readonly disposeRectangularRadioButton: () => void;
 
+  public static readonly TANDEM_NAME_SUFFIX = 'RadioButton';
+
   /**
    * @param property - axon Property that can take on a set of values, one for each radio button in the group
    * @param value - value when this radio button is selected
@@ -113,8 +115,8 @@ export default class RectangularRadioButton<T> extends RectangularButton {
       phetioReadOnly: PhetioObject.DEFAULT_OPTIONS.phetioReadOnly // to support properly passing this to children, see https://github.com/phetsims/tandem/issues/60
     }, providedOptions );
 
-    assert && assert( !options.tandem.supplied || options.tandem.name.endsWith( 'RadioButton' ),
-      `RectangularRadioButton tandem.name must end with RadioButton: ${options.tandem.phetioID}` );
+    assert && assert( !options.tandem.supplied || options.tandem.name.endsWith( RectangularRadioButton.TANDEM_NAME_SUFFIX ),
+      `RectangularRadioButton tandem.name must end with ${RectangularRadioButton.TANDEM_NAME_SUFFIX}: ${options.tandem.phetioID}` );
 
     // Note it shares a tandem with this, so the emitter will be instrumented as a child of the button
     const buttonModel = new ButtonModel( {