Traversable implements CanBeEmpty 2/2

mP1 · Mar 25, 2024 · 0dd8528 · 0dd8528
1 parent e8ff558
commit 0dd8528
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/src/main/java/walkingkooka/tree/TraversableTesting2.java b/src/main/java/walkingkooka/tree/TraversableTesting2.java
@@ -107,6 +107,13 @@ default <TT> void checkCached(final T traversable,
         assertSame(value, value2, () -> traversable + " did not cache " + property);
     }
 
+    // CanBeEmptyTesting................................................................................................
+
+    @Override
+    default T createCanBeEmpty() {
+        return this.createObject();
+    }
+
     // HashcodeAndEqualityTesting.......................................................................................
 
     @Override

diff --git a/src/test/java/walkingkooka/tree/expression/ExpressionTestCase.java b/src/test/java/walkingkooka/tree/expression/ExpressionTestCase.java
@@ -510,7 +510,10 @@ public final String isMethodTypeNameSuffix() {
 
     @Override
     public final Predicate<String> isMethodIgnoreMethodFilter() {
-        return (m) -> m.equals("isRoot") || m.equals("parentOrFail") || m.equals("isPure");
+        return (m) -> m.equals("isRoot") ||
+                m.equals("parentOrFail") ||
+                m.equals("isPure") ||
+                m.equals("isEmpty");
     }
 
     // ClassTestCase.........................................................................................