diff --git a/src/test/java/com/puppycrawl/tools/checkstyle/checks/metrics/ClassFanOutComplexityCheckTest.java b/src/test/java/com/puppycrawl/tools/checkstyle/checks/metrics/ClassFanOutComplexityCheckTest.java
index a2979db62..679ad61a2 100644
--- a/src/test/java/com/puppycrawl/tools/checkstyle/checks/metrics/ClassFanOutComplexityCheckTest.java
+++ b/src/test/java/com/puppycrawl/tools/checkstyle/checks/metrics/ClassFanOutComplexityCheckTest.java
@@ -22,6 +22,7 @@ package com.puppycrawl.tools.checkstyle.checks.metrics;
 import static com.puppycrawl.tools.checkstyle.checks.metrics.ClassFanOutComplexityCheck.MSG_KEY;
 
 import java.io.File;
+import java.io.IOException;
 
 import org.apache.commons.lang3.ArrayUtils;
 import org.junit.Assert;
@@ -32,6 +33,12 @@ import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
 
 public class ClassFanOutComplexityCheckTest extends BaseCheckTestSupport {
+    @Override
+    protected String getPath(String filename) throws IOException {
+        return super.getPath("checks" + File.separator
+                + "metrics" + File.separator + filename);
+    }
+
     @Test
     public void test() throws Exception {
         DefaultConfiguration checkConfig = createCheckConfig(ClassFanOutComplexityCheck.class);
@@ -43,10 +50,7 @@ public class ClassFanOutComplexityCheckTest extends BaseCheckTestSupport {
             "38:1: " + getCheckMessage(MSG_KEY, 1, 0),
         };
 
-        verify(checkConfig,
-               getPath("checks" + File.separator
-                       + "metrics" + File.separator + "ClassCouplingCheckTestInput.java"),
-               expected);
+        verify(checkConfig, getPath("ClassCouplingCheckTestInput.java"), expected);
     }
 
     @Test
@@ -67,10 +71,7 @@ public class ClassFanOutComplexityCheckTest extends BaseCheckTestSupport {
         String[] expected = ArrayUtils.EMPTY_STRING_ARRAY;
 
         createChecker(checkConfig);
-        verify(checkConfig,
-            getPath("checks" + File.separator
-                    + "metrics" + File.separator + "ClassCouplingCheckTestInput.java"),
-            expected);
+        verify(checkConfig, getPath("ClassCouplingCheckTestInput.java"), expected);
     }
 
     @Test
diff --git a/src/test/resources/com/puppycrawl/tools/checkstyle/checks/metrics/Input15Extensions.java b/src/test/resources/com/puppycrawl/tools/checkstyle/checks/metrics/Input15Extensions.java
new file mode 100644
index 000000000..d63640690
--- /dev/null
+++ b/src/test/resources/com/puppycrawl/tools/checkstyle/checks/metrics/Input15Extensions.java
@@ -0,0 +1,36 @@
+// someexamples of 1.5 extensions
+package com.puppycrawl.tools.checkstyle.checks.metrics;
+
+@interface MyAnnotation1 {
+    String name();
+    int version();
+}
+
+@MyAnnotation1(name = "ABC", version = 1)
+public class Input15Extensions
+{
+
+}
+
+enum Enum1
+{
+    A, B, C;
+    Enum1() {}
+    public String toString() {
+        return ""; //some custom implementation
+    }
+}
+
+interface TestRequireThisEnum
+{
+    enum DAY_OF_WEEK
+    {
+        SUNDAY,
+        MONDAY,
+        TUESDAY,
+        WEDNESDAY,
+        THURSDAY,
+        FRIDAY,
+        SATURDAY
+    }
+}