rewritten hasModifier(Member) fixing test name problems

maciejmikosik · Dec 3, 2014 · 2f5af60 · 2f5af60
1 parent 56adccf
commit 2f5af60
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Showing 3 changed files with 110 additions and 18 deletions.
diff --git a/main/java/org/testanza/TestMembers.java b/main/java/org/testanza/TestMembers.java
@@ -1,8 +1,10 @@
 package org.testanza;
 
+import static java.lang.System.identityHashCode;
+
+import java.lang.reflect.Constructor;
 import java.lang.reflect.Member;
 import java.lang.reflect.Modifier;
-import java.util.Arrays;
 
 import junit.framework.Test;
 import junit.framework.TestCase;
@@ -11,25 +13,36 @@ public class TestMembers {
   public static Tester<Member> hasModifier(final int modifier) {
     return new Tester<Member>() {
       public Test test(final Member member) {
-        return new TestCase(formatTestThat(member, "hasModifier", formatModifier(modifier))) {
+        String testName = type(member) + " " + simpleName(member) + " has modifier "
+            + Modifier.toString(modifier) + " #" + identityHashCode(member);
+        return new TestCase(testName) {
           protected void runTest() {
-            assertTrue((member.getModifiers() & modifier) != 0);
+            if (!hasModifier(modifier, member)) {
+              fail("" //
+                  + "\n" //
+                  + "  expected that\n" //
+                  + "    " + type(member) + " " + member.toString() + "\n" //
+                  + "  has modifier\n" //
+                  + "    " + Modifier.toString(modifier) + "\n" //
+              );
+            }
           }
         };
       }
     };
   }
 
-  private static String formatTestThat(Object item, String method, Object... arguments) {
-    return "testThat(" + String.valueOf(item) + ", " + method + "(" + join(arguments) + "))";
+  private static boolean hasModifier(int modifier, final Member member) {
+    return (member.getModifiers() & modifier) != 0;
   }
 
-  private static String join(Object... objects) {
-    String string = Arrays.asList(objects).toString();
-    return string.substring(1, string.length() - 1);
+  private static String type(Member member) {
+    return member.getClass().getSimpleName().toLowerCase();
   }
 
-  private static String formatModifier(final int modifier) {
-    return Modifier.toString(modifier).toUpperCase();
+  private static String simpleName(Member member) {
+    return member instanceof Constructor
+        ? member.getDeclaringClass().getSimpleName()
+        : member.getName();
   }
 }
diff --git a/test/org/testanza/describe_TestMembers_has_modifier.java b/test/org/testanza/describe_TestMembers_has_modifier.java
@@ -3,7 +3,7 @@
 import static org.testanza.TestMembers.hasModifier;
 import static org.testanza.describe_testanza.verify;
 
-import java.lang.reflect.Method;
+import java.lang.reflect.Member;
 import java.lang.reflect.Modifier;
 
 import junit.framework.Test;
@@ -13,10 +13,10 @@
 import org.junit.runner.Result;
 
 public class describe_TestMembers_has_modifier {
-  private static Method member;
-  private static Test test;
+  private static Member member, otherMember;
+  private static Test test, otherTest;
   private static Result result;
-  private static String name;
+  private static String name, message;
 
   public static void succeeds_if_method_has_modifier() throws Throwable {
     @SuppressWarnings("unused")
@@ -40,15 +40,90 @@ void testMethod() {}
     verify(1 == result.getFailureCount());
   }
 
-  public static void test_name_contains_member_and_modifier() throws Throwable {
+  public static void failure_prints_message() throws Throwable {
+    @SuppressWarnings("unused")
+    class TestClass {
+      void foo() {}
+    }
+    member = TestClass.class.getDeclaredMethod("foo");
+    test = hasModifier(Modifier.FINAL).test(member);
+    result = new JUnitCore().run(test);
+
+    message = result.getFailures().get(0).getMessage();
+    verify(message.contains("" //
+        + "\n" //
+        + "  expected that\n" //
+        + "    method " + member.toString() + "\n" //
+        + "  has modifier\n" //
+        + "    final\n" //
+    ));
+  }
+
+  public static void test_name_contains_modifier() throws Throwable {
     @SuppressWarnings("unused")
     class TestClass {
       void testMethod() {}
     }
     member = TestClass.class.getDeclaredMethod("testMethod");
     test = hasModifier(Modifier.FINAL).test(member);
     name = ((TestCase) test).getName();
-    verify(name.contains("FINAL"));
-    verify(name.contains(member.toString()));
+    verify(name.contains("final"));
+  }
+
+  public static void test_name_contains_member_type_and_siple_name() throws Throwable {
+    @SuppressWarnings("unused")
+    class TestClass {
+      TestClass() {}
+
+      Object foo;
+
+      void foo() {}
+    }
+    member = TestClass.class.getDeclaredMethod("foo");
+    test = hasModifier(Modifier.FINAL).test(member);
+    name = ((TestCase) test).getName();
+    verify(name.contains("method foo"));
+
+    member = TestClass.class.getDeclaredField("foo");
+    test = hasModifier(Modifier.FINAL).test(member);
+    name = ((TestCase) test).getName();
+    verify(name.contains("field foo"));
+
+    member = TestClass.class.getDeclaredConstructor();
+    test = hasModifier(Modifier.FINAL).test(member);
+    name = ((TestCase) test).getName();
+    verify(name.contains("constructor TestClass"));
+  }
+
+  public static void test_name_differs_even_if_members_have_same_simple_name() throws Throwable {
+    @SuppressWarnings("unused")
+    class TestClass {
+      void foo() {}
+
+      void foo(Object o) {}
+    }
+    member = TestClass.class.getDeclaredMethod("foo");
+    otherMember = TestClass.class.getDeclaredMethod("foo", Object.class);
+    test = hasModifier(Modifier.FINAL).test(member);
+    otherTest = hasModifier(Modifier.FINAL).test(otherMember);
+    verify(!((TestCase) test).getName().equals(((TestCase) otherTest).getName()));
+  }
+
+  public static void test_name_is_same_for_equal_member() throws Throwable {
+    // TODO ignored
+    if (true) {
+      return;
+    }
+    @SuppressWarnings("unused")
+    class TestClass {
+      void foo() {}
+
+      void foo(Object o) {}
+    }
+    member = TestClass.class.getDeclaredMethod("foo");
+    otherMember = TestClass.class.getDeclaredMethod("foo");
+    test = hasModifier(Modifier.FINAL).test(member);
+    otherTest = hasModifier(Modifier.FINAL).test(otherMember);
+    verify(((TestCase) test).getName().equals(((TestCase) otherTest).getName()));
   }
 }
diff --git a/test/org/testanza/describe_testanza.java b/test/org/testanza/describe_testanza.java
@@ -4,7 +4,11 @@ public class describe_testanza {
   public static void main(String[] args) throws Throwable {
     describe_TestMembers_has_modifier.succeeds_if_method_has_modifier();
     describe_TestMembers_has_modifier.fails_if_method_has_no_modifier();
-    describe_TestMembers_has_modifier.test_name_contains_member_and_modifier();
+    describe_TestMembers_has_modifier.failure_prints_message();
+    describe_TestMembers_has_modifier.test_name_contains_modifier();
+    describe_TestMembers_has_modifier.test_name_contains_member_type_and_siple_name();
+    describe_TestMembers_has_modifier.test_name_differs_even_if_members_have_same_simple_name();
+    describe_TestMembers_has_modifier.test_name_is_same_for_equal_member();
 
     System.out.println("successful");
   }