For better testability, add toString() implementations

Author: kerrykimbrough

src/main/java/org/cornutum/hamcrest/BaseCompositeMatcher.java

@@ -80,6 +80,11 @@ public Optional<Matcher<? super T>> getMismatch()
       {
       return Optional.ofNullable( mismatch);
       }
+
+    public String toString()
+      {
+      return String.format( "%s[%s]", getClass().getSimpleName(), BaseCompositeMatcher.this.getClass().getSimpleName());
+      }
     }
 
   /**
@@ -217,4 +222,9 @@ private Optional<Matcher<? super T>> getMismatch()
       ? Optional.empty()
       : compositeMatcher.getMismatch();
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }

src/main/java/org/cornutum/hamcrest/ContainsElements.java

@@ -85,4 +85,9 @@ public void describeMismatch( Object actual, Description description)
     {
     containsMembers.describeMismatch( actual, description);
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }

src/main/java/org/cornutum/hamcrest/ContainsMembers.java

@@ -61,7 +61,12 @@ public T getActualMember()
     public Matcher<T> getMatcher()
       {
       return matcher;
-      }    
+      }
+
+    public String toString()
+      {
+      return String.format( "%s[actual=%s, matcher=%s]", getClass().getSimpleName(), actualMember, matcher);
+      }
     }
 
   /**
@@ -235,6 +240,11 @@ private String toString( List<?> members)
         .map( m -> String.valueOf(m))
         .reduce( "", (list, m) -> list + (list.isEmpty()? "" : ", ") + m);
       }
+
+    public String toString()
+      {
+      return String.format( "%s[%s]", getClass().getSimpleName(), ContainsMembers.this.getClass().getSimpleName());
+      }
     }
 
   /**
@@ -317,4 +327,9 @@ private Optional<MemberMatch> getMemberMismatch()
       ? Optional.empty()
       : memberMatcher.getMemberMismatch();
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }

src/main/java/org/cornutum/hamcrest/ExpectedFailure.java

@@ -78,6 +78,11 @@ public static ExpectedFailure<AssertionError> expectFailure()
     return expectFailure( AssertionError.class);
     }
 
+  public String toString()
+    {
+    return String.format( "%s[%s]", getClass().getSimpleName(), failureType.getSimpleName());
+    }
+
   /**
    * Implements an action that could throw any type of Throwable, including a checked exception.
    */

src/main/java/org/cornutum/hamcrest/ListsElements.java

@@ -85,4 +85,9 @@ public void describeMismatch( Object actual, Description description)
     {
     listsMembers.describeMismatch( actual, description);
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }

src/main/java/org/cornutum/hamcrest/ListsMembers.java

@@ -61,7 +61,12 @@ public T getActualMember()
     public Matcher<T> getMatcher()
       {
       return matcher;
-      }    
+      }
+
+    public String toString()
+      {
+      return String.format( "%s[actual=%s, matcher=%s]", getClass().getSimpleName(), actualMember, matcher);
+      }
     }
 
   /**
@@ -207,6 +212,11 @@ public Optional<MemberMatch> getMemberMismatch()
       {
       return Optional.ofNullable( memberMismatch);
       }
+
+    public String toString()
+      {
+      return String.format( "%s[%s]", getClass().getSimpleName(), ListsMembers.this.getClass().getSimpleName());
+      }
     }
 
   /**
@@ -289,4 +299,9 @@ private Optional<MemberMatch> getMemberMismatch()
       ? Optional.empty()
       : memberMatcher.getMemberMismatch();
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }

src/main/java/org/cornutum/hamcrest/MatchesFunction.java

@@ -82,6 +82,11 @@ public Optional<String> getMismatch()
         ? Optional.of( mismatch.toString())
         : Optional.empty();
       }
+
+    public String toString()
+      {
+      return String.format( "%s[%s]", getClass().getSimpleName(), functionName);
+      }
     }
 
   /**
@@ -218,4 +223,9 @@ private FunctionMatcher getFunctionMatcher( Object actual)
 
     return functionMatcher;
     }
+
+  public String toString()
+    {
+    return String.format( "%s[%s]", getClass().getSimpleName(), functionName);
+    }
   }

src/main/java/org/cornutum/hamcrest/VisitsList.java

@@ -84,4 +84,9 @@ public void describeMismatch( Object actual, Description description)
     {
     listsMembers.describeMismatch( actual, description);
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }

src/main/java/org/cornutum/hamcrest/VisitsMembers.java

@@ -84,4 +84,9 @@ public void describeMismatch( Object actual, Description description)
     {
     containsMembers.describeMismatch( actual, description);
     }
+
+  public String toString()
+    {
+    return String.format( "%s[]", getClass().getSimpleName());
+    }
   }