- F DateScrubber.getScrubberFor("") returns empty scrubber

Co-authored-by: Jay Bazuzi <jay@bazuzi.com>
Co-authored-by: Llewellyn Falco <llewellyn.falco@gmail.com>

Author: 3 people

approvaltests-tests/src/test/java/org/approvaltests/scrubbers/DateScrubberTest.java

@@ -4,7 +4,6 @@
 import com.spun.util.markdown.table.MarkdownTable;
 import org.approvaltests.Approvals;
 import org.approvaltests.core.Options;
-import org.approvaltests.velocity.VelocityApprovals;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
@@ -72,4 +71,9 @@ void textExamples()
         """.split("\n");
     Approvals.verifyAll("Date scrubbing", examples, this::verifyScrubbing);
   }
+  @Test
+  void testBlank()
+  {
+    DateScrubber.getScrubberFor("");
+  }
 }

approvaltests/src/main/java/org/approvaltests/scrubbers/DateScrubber.java

@@ -2,6 +2,7 @@
 
 import com.spun.util.ArrayUtils;
 import com.spun.util.FormattedException;
+import com.spun.util.StringUtils;
 import org.lambda.functions.Function1;
 import org.lambda.query.Query;
 
@@ -56,6 +57,8 @@ private static SupportedFormat __(String regex, String... examples)
   }
   public static DateScrubber getScrubberFor(String formattedExample)
   {
+    if (StringUtils.isEmpty(formattedExample))
+    { return DateScrubber.getNull(); }
     for (SupportedFormat pattern : getSupportedFormats())
     {
       DateScrubber scrubber = new DateScrubber(pattern.getRegex());
@@ -66,6 +69,17 @@ public static DateScrubber getScrubberFor(String formattedExample)
         "No match found for %s.\n Feel free to add your date at https://github.com/approvals/ApprovalTests.Java/issues/112 \n Current supported formats are: %s",
         formattedExample, Query.select(getSupportedFormats(), SupportedFormat::getRegex));
   }
+  public static DateScrubber getNull()
+  {
+    return new DateScrubber("")
+    {
+      @Override
+      public String scrub(String input)
+      {
+        return input;
+      }
+    };
+  }
   public static class SupportedFormat
   {
     private final String[] examples;