Add max recursion test

tests/samples/include1_recursive.map

@@ -0,0 +1,4 @@
+MAP
+    NAME 'include_test'
+    INCLUDE 'include2_recursive.map'
+END

tests/samples/include2_recursive.map

@@ -0,0 +1,3 @@
+LAYER
+    INCLUDE 'include3_recursive.map'
+END

tests/samples/include3_recursive.map

@@ -0,0 +1,4 @@
+CLASS
+  NAME 'test_class'
+  INCLUDE 'include4_recursive.map'
+END

tests/samples/include4_recursive.map

@@ -0,0 +1,3 @@
+STYLE
+  INCLUDE 'include5_recursive.map'
+END

tests/samples/include5_recursive.map

@@ -0,0 +1,2 @@
+COLOR 0 0 0
+INCLUDE 'include6_recursive.map'

tests/samples/include6_recursive.map

@@ -0,0 +1,2 @@
+SIZE 8
+INCLUDE 'include7_recursive.map'

tests/samples/include7_recursive.map

@@ -0,0 +1 @@
+OUTLINECOLOR 255 255 255

tests/test_sample_maps.py

@@ -46,6 +46,14 @@ def test_includes_nested_path():
     print(mappyfile.dumps(d))
 
 
+def test_includes_max_recursion():
+    p = Parser()
+
+    with pytest.raises(Exception) as excinfo:
+        p.parse_file('./tests/samples/include1_recursive.map')
+
+    assert 'Maximum nested include exceeded' in str(excinfo.value)
+
 def run_tests():
     pytest.main(["tests/test_sample_maps.py"])