Add test case for ArgumentTypeNameMatch.java

skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/api/plugin/bytebuddy/ArgumentTypeNameMatch.java

 package com.a.eye.skywalking.api.plugin.bytebuddy;
 
 import net.bytebuddy.description.method.MethodDescription;
+import net.bytebuddy.description.method.ParameterList;
 import net.bytebuddy.matcher.ElementMatcher;
 
 /**
@@ -39,8 +40,9 @@ public class ArgumentTypeNameMatch implements ElementMatcher<MethodDescription>
      */
     @Override
     public boolean matches(MethodDescription target) {
-        if (target.getParameters().size() > index) {
-            return target.getParameters().get(index).getType().asErasure().getName().equals(argumentTypeName);
+        ParameterList<?> parameters = target.getParameters();
+        if (parameters.size() > index) {
+            return parameters.get(index).getType().asErasure().getName().equals(argumentTypeName);
         }
 
         return false;

skywalking-sniffer/skywalking-api/src/test/java/com/a/eye/skywalking/api/plugin/bytebuddy/ArgumentTypeNameMatchTest.java

+package com.a.eye.skywalking.api.plugin.bytebuddy;
+
+import net.bytebuddy.description.method.MethodDescription;
+import net.bytebuddy.description.method.ParameterDescription;
+import org.junit.Assert;
+import org.junit.Test;
+import org.mockito.Mockito;
+
+import static org.mockito.Mockito.when;
+
+/**
+ * @author wusheng
+ */
+public class ArgumentTypeNameMatchTest {
+    @Test
+    public void testMatches() throws IllegalAccessException {
+        MethodDescription methodDescription = Mockito.mock(MethodDescription.class, Mockito.RETURNS_DEEP_STUBS);
+        ParameterDescription parameterDescription = Mockito.mock(ParameterDescription.class, Mockito.RETURNS_DEEP_STUBS);
+        when(methodDescription.getParameters().get(0)).thenReturn(parameterDescription);
+        when(methodDescription.getParameters().size()).thenReturn(1);
+        when(parameterDescription.getType().asErasure().getName()).thenReturn("com.a.eye.TestClass");
+
+        ArgumentTypeNameMatch matcher = ((ArgumentTypeNameMatch)ArgumentTypeNameMatch.takesArgumentWithType(0, "com.a.eye.TestClass"));
+        Assert.assertTrue(matcher.matches(methodDescription));
+
+        ArgumentTypeNameMatch matcher2 = ((ArgumentTypeNameMatch)ArgumentTypeNameMatch.takesArgumentWithType(0, "com.a.eye.TestClass2"));
+        Assert.assertFalse(matcher2.matches(methodDescription));
+    }
+
+    @Test
+    public void testMatchesWithNoParameters(){
+        MethodDescription methodDescription = Mockito.mock(MethodDescription.class, Mockito.RETURNS_DEEP_STUBS);
+        ParameterDescription parameterDescription = Mockito.mock(ParameterDescription.class, Mockito.RETURNS_DEEP_STUBS);
+        when(methodDescription.getParameters().size()).thenReturn(0);
+
+        ArgumentTypeNameMatch matcher2 = ((ArgumentTypeNameMatch)ArgumentTypeNameMatch.takesArgumentWithType(0, "com.a.eye.TestClass"));
+        Assert.assertFalse(matcher2.matches(methodDescription));
+    }
+}