diff --git a/tests/test_Ccp_Abc.py b/tests/test_Ccp_Abc.py
index fd02caf..92d3658 100755
--- a/tests/test_Ccp_Abc.py
+++ b/tests/test_Ccp_Abc.py
@@ -1,16 +1,17 @@
 #!/usr/bin/env python
 
+from loguru import logger
+import pytest
+from ciscoconfparse.ciscoconfparse import CiscoConfParse
+from ciscoconfparse.errors import DynamicAddressException
+from ciscoconfparse.ccp_util import IPv4Obj, CiscoRange, CiscoIOSInterface
+from ciscoconfparse.ccp_abc import BaseCfgLine
+from ciscoconfparse.models_cisco import IOSCfgLine
 import sys
-import os
 
 sys.path.insert(0, "..")
 
-from ciscoconfparse.ccp_util import IPv4Obj, CiscoRange, CiscoIOSInterface
-from ciscoconfparse.errors import DynamicAddressException
-from ciscoconfparse.ciscoconfparse import CiscoConfParse
-import pytest
 
-from loguru import logger
 
 r""" test_Ccp_Abc.py - Parse, Query, Build, and Modify IOS-style configs
 
@@ -33,6 +34,157 @@
      mike [~at~] pennington [/dot\] net
 """
 
+
+def testVal_BaseCfgLine_obj_01():
+    """Test the text and other attributes of ccp_abc.BaseCfgLine()"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    assert obj01.text == "hostname Foo"
+    assert obj01.linenum == -1
+    assert obj01.child_indent == 0
+    assert obj01.is_comment is False
+    assert str(obj01) == "<BaseCfgLine # -1 'hostname Foo'>"
+
+
+def testVal_BaseCfgLine_eq_01():
+    """Test the equality of BaseCfgLine() objects"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj02 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    assert obj01 == obj02
+
+
+def testVal_BaseCfgLine_neq_01():
+    """Test the inequality of BaseCfgLine() objects if their linenumbers are different"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    obj02 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj02.linenum = 2
+    assert obj01 != obj02
+
+
+def testVal_BaseCfgLine_gt_01():
+    """Test the __gt__ of BaseCfgLine() objects if their linenumbers are different"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    obj02 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj02.linenum = 2
+    assert obj02 > obj01
+
+
+def testVal_BaseCfgLine_lt_01():
+    """Test the __lt__ of BaseCfgLine() objects if their linenumbers are different"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    obj02 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj02.linenum = 2
+    assert obj01 < obj02
+
+
+def testVal_BaseCfgLine_index_01():
+    """Test BaseCfgLine().index"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    assert obj01.linenum == 1
+    assert obj01.index == obj01.linenum
+
+
+def testVal_BaseCfgLine_calculate_line_id_01():
+    """Test BaseCfgLine().calculate_line_id() is an integer.  calculate_line_id() returns a different number for each unique object and it cannot be easily predicted"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    assert isinstance(obj01.calculate_line_id(), int)
+
+
+def testVal_BaseCfgLine_diff_id_list_01():
+    """Test BaseCfgLine().diff_id_list() is a list.  diff_id_list() returns a different contents for each unique object and it cannot be easily predicted"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    assert len(obj01.diff_id_list) == 1
+    assert isinstance(obj01.diff_id_list, list)
+    assert isinstance(obj01.diff_id_list[0], int)
+
+
+def testVal_BaseCfgLine_safe_escape_curly_braces_01():
+    """Test BaseCfgLine().safe_escape_curly_braces()"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    assert obj01.safe_escape_curly_braces("hello{") == "hello{{"
+
+
+def testVal_BaseCfgLine_safe_escape_curly_braces_02():
+    """Test BaseCfgLine().safe_escape_curly_braces()"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    assert obj01.safe_escape_curly_braces("hello}") == "hello}}"
+
+
+def testVal_BaseCfgLine_safe_escape_curly_braces_03():
+    """Test BaseCfgLine().safe_escape_curly_braces()"""
+    obj01 = BaseCfgLine(all_lines=None, line="hostname Foo")
+    obj01.linenum = 1
+    assert obj01.safe_escape_curly_braces("{hello} {") == "{{hello}} {{"
+
+
+def testVal_BaseCfgLine_parent_01():
+    """Test BaseCfgLine().parent"""
+    parse = CiscoConfParse(
+        ["interface GigabitEthernet1/1", " ip address 192.0.2.1 255.255.255.0"],
+        syntax="ios",
+    )
+    obj01 = parse.find_objects("interface")[0]
+    obj01.linenum = 1
+    assert len(obj01.children) == 1
+    assert obj01.children[0].parent is obj01
+
+
+def testVal_BaseCfgLine_hash_children_01():
+    """Test BaseCfgLine().hash_children"""
+    parse = CiscoConfParse(
+        ["interface GigabitEthernet1/1", " ip address 192.0.2.1 255.255.255.0"],
+        syntax="ios",
+    )
+    obj01 = parse.find_objects("interface")[0]
+    obj01.linenum = 1
+    assert len(obj01.children) == 1
+    assert isinstance(obj01.children, list)
+    assert isinstance(obj01.hash_children, int)
+
+
+def testVal_BaseCfgLine_family_endpoint_01():
+    """Test BaseCfgLine().family_endpoint"""
+    obj01 = BaseCfgLine(all_lines=None, line="interface Ethernet0/0")
+    obj01.linenum = 1
+    obj02 = BaseCfgLine(all_lines=None, line=" ip address 192.0.2.1 255.255.255.0")
+    obj02.linenum = 2
+    obj03 = BaseCfgLine(all_lines=None, line=" no ip proxy-arp")
+    obj03.linenum = 3
+    obj01.children = [obj02, obj03]
+    assert len(obj01.children) == 2
+    assert obj01.family_endpoint == 3
+
+
+def testVal_BaseCfgLine_verbose_01():
+    """Test BaseCfgLine().verbose"""
+    obj01 = BaseCfgLine(all_lines=None, line="interface Ethernet0/0")
+    obj01.linenum = 1
+    obj02 = BaseCfgLine(all_lines=None, line=" ip address 192.0.2.1 255.255.255.0")
+    obj02.linenum = 2
+    obj03 = BaseCfgLine(all_lines=None, line=" no ip proxy-arp")
+    obj03.linenum = 3
+    obj01.children = [obj02, obj03]
+    assert obj01.verbose == "<BaseCfgLine # 1 'interface Ethernet0/0' (child_indent: 0 / len(children): 2 / family_endpoint: 3)>"
+    assert obj02.verbose == "<BaseCfgLine # 2 ' ip address 192.0.2.1 255.255.255.0' (no_children / family_endpoint: 2)>"
+
+
+def testVal_BaseCfgLine_is_comment_01():
+    """Test BaseCfgLine().is_comment"""
+    obj01 = BaseCfgLine(all_lines=None, line="! hostname Foo", comment_delimiter="!")
+    assert obj01.is_comment is True
+    obj02 = BaseCfgLine(all_lines=None, line="hostname !Foo", comment_delimiter="!")
+    assert obj02.is_comment is False
+    obj03 = BaseCfgLine(all_lines=None, line="hostname Foo!", comment_delimiter="!")
+    assert obj03.is_comment is False
+
+
 def testVal_re_match_iter_typed_parent_default_type_norecurse():
     """Test that re_match_iter_typed(recurse=False) finds the parent and returns the default `result_type`, which is `str`"""
     config = """!
@@ -85,6 +237,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result == "GigabitEthernet 1/1"
 
+
 def testVal_re_match_iter_typed_first_child_default_type_norecurse():
     """Test that re_match_iter_typed(recurse=False) finds the first child and returns the default `result_type`, which is `str`"""
     config = """!
@@ -137,6 +290,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result == "trunk"
 
+
 def testVal_re_match_iter_typed_first_child_default_type_recurse():
     """Test that re_match_iter_typed(recurse=True) finds the first child and returns the default `result_type`, which is `str`"""
     config = """!
@@ -189,6 +343,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result == "trunk"
 
+
 def testVal_re_match_iter_typed_child_deep_fail_norecurse():
     """Test that re_match_iter_typed(recurse=False) fails on a deep recurse through multiple children"""
     config = """!
@@ -241,6 +396,7 @@ class ALL
     assert obj.text == "policy-map EXTERNAL_CBWFQ"
     assert uut_result == "_no_match"
 
+
 def testVal_re_match_iter_typed_child_deep_pass_recurse():
     """Test that re_match_iter_typed(recurse=False) finds during a deep recurse through multiple levels of children"""
     config = """!
@@ -293,6 +449,7 @@ class ALL
     assert obj.text == "policy-map EXTERNAL_CBWFQ"
     assert uut_result == "drop"
 
+
 def testVal_re_match_iter_typed_second_child_default_type_recurse():
     """Test that re_match_iter_typed(recurse=False) finds the second child and returns the default `result_type`, which is `str`"""
     config = """!
@@ -345,6 +502,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result == "911"
 
+
 def testVal_re_match_iter_typed_second_child_int_type_recurse():
     """Test that re_match_iter_typed(recurse=False) finds the second child and returns the default `result_type`, which is `str`"""
     config = """!
@@ -398,6 +556,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result == 911
 
+
 def testVal_re_match_iter_typed_named_regex_group_second_child_int_type_recurse():
     """Test that re_match_iter_typed(recurse=False) finds the second child with a named regex"""
     config = """!
@@ -451,6 +610,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result == 911
 
+
 def testVal_re_match_iter_typed_intf_norecurse():
     """Test that re_match_iter_typed(recurse=False) finds the parent and returns a `str`"""
     config = """!
@@ -503,6 +663,7 @@ class ALL
     assert obj.text == "interface GigabitEthernet 1/1"
     assert uut_result["intf"] == "GigabitEthernet 1/1"
 
+
 def testVal_re_match_iter_typed_vlan_recurse():
     """Test that re_match_iter_typed(recurse=False) finds the second child and returns an `int`"""
     config = """!