test: avatar (#183)

tests: avatar, colors, sizes, badge positions, texts

tests: added accessibility tests

tests: added tests for initials

tests: added golden tests

fix: changed avatar xs so it shows two initals

fix: changed example back

fix: added some commas

chore(automated): Lint commit and format

test: added loop for zetaavatar with border color for $size

docs: added brief docs for fontSize function in avatar

fix: get initials now returns the first and last name initials rather than first and second names.

test: changed extension test to reflect changes

test: removed comment that was cause github action to fail

lib/src/components/avatars/avatar.dart

@@ -188,7 +188,7 @@ class ZetaAvatar extends ZetaStatelessWidget {
         (initials != null
             ? Center(
                 child: Text(
-                  size == ZetaAvatarSize.xs ? initials!.substring(0, 1) : initials!,
+                  initials!,
                   style: initialTextStyle ??
                       TextStyle(
                         fontSize: size.fontSize(context),
@@ -288,11 +288,10 @@ class ZetaAvatar extends ZetaStatelessWidget {
       ..add(StringProperty('semanticLowerBadgeValue', semanticLowerBadgeLabel))
       ..add(DiagnosticsProperty<TextStyle>('initialTextStyle', initialTextStyle));
   }
-}
 
-extension on ZetaAvatarSize {
-  double pixelSize(BuildContext context) {
-    switch (this) {
+  /// Returns pixel size for [ZetaAvatarSize]
+  static double pixelSize(BuildContext context, ZetaAvatarSize size) {
+    switch (size) {
       case ZetaAvatarSize.xxxl:
         return Zeta.of(context).spacing.minimum * 50; // TODO(UX-1202): ZetaSpacingBase
       // return ZetaSpacingBase.x50;
@@ -316,6 +315,17 @@ extension on ZetaAvatarSize {
     }
   }
 
+  /// Font size for initials
+  static double fontSize(BuildContext context, ZetaAvatarSize size) {
+    return pixelSize(context, size) * 4 / 9;
+  }
+}
+
+extension on ZetaAvatarSize {
+  double pixelSize(BuildContext context) {
+    return ZetaAvatar.pixelSize(context, this);
+  }
+
   double borderSize(BuildContext context) {
     switch (this) {
       case ZetaAvatarSize.xxxl:
@@ -335,7 +345,7 @@ extension on ZetaAvatarSize {
   }
 
   double fontSize(BuildContext context) {
-    return pixelSize(context) * 4 / 9;
+    return ZetaAvatar.fontSize(context, this);
   }
 }
 

lib/src/utils/extensions.dart

@@ -97,7 +97,7 @@ extension StringExtensions on String? {
     final List<String> nameParts = this!.split(RegExp(r'\W+'))..removeWhere((item) => item.isEmpty);
     if (nameParts.isEmpty) return '';
     return (nameParts.length > 1
-            ? nameParts[0].substring(0, 1) + nameParts[1].substring(0, 1)
+            ? nameParts[0].substring(0, 1) + nameParts[nameParts.length - 1].substring(0, 1)
             : nameParts[0].length > 1
                 ? nameParts[0].substring(0, 2)
                 : nameParts[0])