diff --git a/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonAnalyserTest.kt b/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonAnalyserTest.kt
index 8976c8c4..aa32478b 100644
--- a/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonAnalyserTest.kt
+++ b/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonAnalyserTest.kt
@@ -3,5 +3,8 @@ package chapi.ast.pythonast
 import org.junit.jupiter.api.Test
 
 internal class PythonAnalyserTest {
+    @Test
+    internal fun shouldIdentBuilderPattern() {
 
+    }
 }
diff --git a/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonFullIdentListenerTest.kt b/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonFullIdentListenerTest.kt
index 1b08a231..d6160522 100644
--- a/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonFullIdentListenerTest.kt
+++ b/chapi-ast-python/src/test/kotlin/chapi/ast/pythonast/PythonFullIdentListenerTest.kt
@@ -9,13 +9,15 @@ internal class PythonFullIdentListenerTest {
     internal fun shouldAnalysisPython2() {
         val python2HelloWorld = """print("Hello, World!")"""
 
-        PythonAnalyser().analysis(python2HelloWorld, "")
+        val codeContainer = PythonAnalyser().analysis(python2HelloWorld, "py2.py")
+        assertEquals(codeContainer.FullName, "py2.py")
     }
 
     @Test
     internal fun shouldAnalysisPython3() {
         val py3HelloWorld = """print "Hello, World!""""
-        PythonAnalyser().analysis(py3HelloWorld, "")
+        val codeContainer = PythonAnalyser().analysis(py3HelloWorld, "py3.py")
+        assertEquals(codeContainer.FullName, "py3.py")
     }
 
     @Test
diff --git a/chapi-ast-python/src/test/resources/call/builder_pattern_call.py b/chapi-ast-python/src/test/resources/call/builder_pattern_call.py
new file mode 100644
index 00000000..29c4e307
--- /dev/null
+++ b/chapi-ast-python/src/test/resources/call/builder_pattern_call.py
@@ -0,0 +1,18 @@
+## https://stackoverflow.com/questions/17321167/calling-chains-methods-with-intermediate-results
+
+class Person:
+    def setName(self, name):
+        self.name = name
+        return self  ## this is what makes this work
+
+    def setAge(self, age):
+        self.age = age;
+        return self;
+
+    def setSSN(self, ssn):
+        self.ssn = ssn
+        return self
+
+
+p = Person()
+p.setName("Hunter").setAge(24).setSSN("111-22-3333")