Add test for append(null) to LengthLimitingStringBuilder

jmaroeder · jmaroeder · commit b9622719b8fa · 2022-02-28T17:46:33.000-05:00
diff --git a/src/test/java/com/hubspot/jinjava/util/LengthLimitingStringBuilderTest.java b/src/test/java/com/hubspot/jinjava/util/LengthLimitingStringBuilderTest.java
@@ -1,5 +1,6 @@
 package com.hubspot.jinjava.util;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 import com.hubspot.jinjava.interpret.OutputTooBigException;
@@ -19,4 +20,11 @@ public void itDoesNotLimitWithZeroLength() {
     LengthLimitingStringBuilder sb = new LengthLimitingStringBuilder(0);
     sb.append("0123456789");
   }
+
+  @Test
+  public void itHandlesNullStrings() {
+    LengthLimitingStringBuilder sb = new LengthLimitingStringBuilder(10);
+    sb.append(null);
+    assertThat(sb.length()).isEqualTo(0);
+  }
 }
