diff --git a/tests/data/base_file.csv b/tests/data/base_file.csv
index 5ff813f..53b2978 100644
--- a/tests/data/base_file.csv
+++ b/tests/data/base_file.csv
@@ -1,21 +1,21 @@
-network,is_valid,is_subnet_of_extra,test_case
-127.0.0.0/17,FALSE,FALSE,localhost
-0.128.0.0/10,TRUE,FALSE,private network
-206.0.0.0/8,TRUE,FALSE,valid
-105.231.36.0/23,TRUE,FALSE,valid
-108.232.0.0/13,TRUE,FALSE,valid
-110.204.32.0/21,TRUE,FALSE,valid
-113.53.128.0/17,TRUE,FALSE,valid
-121.128.0.0/9,TRUE,FALSE,valid
-122.64.0.0/11,TRUE,FALSE,valid
-131.128.0.0/9,TRUE,FALSE,valid
-138.232.0.0/13,TRUE,FALSE,valid
-140.210.168.0/22,TRUE,FALSE,valid
-145.224.0.0/13,TRUE,FALSE,valid
-152.128.0.0/9,TRUE,FALSE,valid
-162.55.64.0/18,TRUE,FALSE,valid
-165.128.0.0/13,TRUE,FALSE,valid
-174.160.0.0/11,TRUE,FALSE,valid
-109.92.213.0/24,TRUE,FALSE,valid
-244.20.0.0/14,TRUE,FALSE,valid
-244.20.0.0/14,TRUE,FALSE,duplicate
+network,in_result,comment
+127.0.0.0/17,1,merge does not handle sorting out localhost
+0.128.0.0/10,1,private network
+206.0.0.0/8,1,
+105.231.36.0/23,1,
+108.232.0.0/13,1,
+110.204.32.0/21,1,
+113.53.128.0/17,1,
+121.128.0.0/9,1,
+122.64.0.0/11,1,
+131.128.0.0/9,1,
+138.232.0.0/13,1,
+140.210.168.0/22,1,
+145.224.0.0/13,1,
+152.128.0.0/9,1,
+162.55.64.0/18,1,
+165.128.0.0/13,1,
+174.160.0.0/11,1,
+109.92.213.0/24,1,
+244.20.0.0/14,1,
+244.20.0.0/14,1,duplicates within each file are not expected so merge does not handle this
diff --git a/tests/data/extra_file.csv b/tests/data/extra_file.csv
index ffd6efc..43723c3 100644
--- a/tests/data/extra_file.csv
+++ b/tests/data/extra_file.csv
@@ -1,22 +1,22 @@
-network,is_valid,is_subnet_of_base,test_case
-2.11.76.0/22,TRUE,FALSE,valid
-115.7.192.0/19,TRUE,FALSE,valid
-12.132.80.0/20,TRUE,FALSE,valid
-82.64.0.0/11,TRUE,FALSE,valid
-194.48.0.0/17,TRUE,FALSE,valid
-197.216.136.0/21,TRUE,FALSE,valid
-249.0.0.0/9,TRUE,FALSE,valid
-32.17.64.0/20,TRUE,FALSE,valid
-38.66.0.0/17,TRUE,FALSE,valid
-40.240.124.0/22,TRUE,FALSE,valid
-44.26.0.0/19,TRUE,FALSE,valid
-46.99.64.0/20,TRUE,FALSE,valid
-55.48.0.0/15,TRUE,FALSE,valid
-74.0.0.0/10,TRUE,FALSE,valid
-77.120.136.0/22,TRUE,FALSE,valid
-131.128.58.0/23,TRUE,TRUE,valid
-244.20.240.0/20,TRUE,TRUE,valid
-108.232.0.0/16,TRUE,TRUE,valid
-122.68.0.0/14,TRUE,TRUE,valid
-121.128.0.0/10,TRUE,TRUE,valid
-121.128.0.0/10,TRUE,TRUE,duplicate
+network,in_result,comment
+2.11.76.0/22,1,
+115.7.192.0/19,1,
+12.132.80.0/20,1,
+82.64.0.0/11,1,
+194.48.0.0/17,1,
+197.216.136.0/21,1,
+249.0.0.0/9,1,
+32.17.64.0/20,1,
+38.66.0.0/17,1,
+40.240.124.0/22,1,
+44.26.0.0/19,1,
+46.99.64.0/20,1,
+55.48.0.0/15,1,
+74.0.0.0/10,1,
+77.120.136.0/22,1,
+131.128.58.0/23,0,subnet of 131.128.0.0/9 in base file
+244.20.240.0/20,0,subnet of 244.20.0.0/14 in base file
+108.232.0.0/16,0,subnet of 108.232.0.0/13 in base file
+122.68.0.0/14,0,subnet of 122.64.0.0/11 in base file
+121.128.0.0/10,0,subnet of 121.128.0.0/9 in base file
+109.92.213.0/24,0,duplicate of an entry in base file
diff --git a/tests/test_merge.py b/tests/test_merge.py
index 2922d7e..2e9a514 100644
--- a/tests/test_merge.py
+++ b/tests/test_merge.py
@@ -23,17 +23,16 @@ def __read_test_vectors(filepath):
     Fixtures for IP networks are under tests/data.
     Read them and return the list of valid networks and the list of individual subnets in the file.
     '''
-    networks = []
-    subnets = []
+    all_networks = []
+    all_in_result = []
     with open(filepath, "r") as f:
         lines = f.readlines()[1:]
         for line in lines:
-            network, _, is_subnet, test_case = line.split(',')
-            if test_case.strip() == "valid":
-                networks.append(network)
-            if is_subnet.strip() == "TRUE":
-                subnets.append(network)
-    return networks, subnets
+            network, in_result, _comment = line.split(',')
+            all_networks.append(network)
+            if in_result.strip() == "1":
+                all_in_result.append(network)
+    return all_networks, all_in_result
 
 def test_merge_from_fixtures(tmp_path):
     '''
@@ -42,9 +41,9 @@ def test_merge_from_fixtures(tmp_path):
     and subnets are merged into the root network appropriately.
     '''
     testdir = Path(__file__).parent
-    base_nets, base_nets_to_exclude = __read_test_vectors(testdir / "data/base_file.csv")
+    base_nets, base_results = __read_test_vectors(testdir / "data/base_file.csv")
     base_path = tmp_path / "base.txt"
-    extra_nets, extra_nets_to_exclude = __read_test_vectors(testdir / "data/extra_file.csv")
+    extra_nets, extra_results = __read_test_vectors(testdir / "data/extra_file.csv")
     extra_path = tmp_path / "extra.txt"
     # write the networks to disk, generating ASNs for each network
     generate_ip_file(base_path, build_file_lines(base_nets, generate_asns(len(base_nets))))
@@ -54,10 +53,9 @@ def test_merge_from_fixtures(tmp_path):
     general_merge(base_path, extra_path, None, outpath)
     with open(outpath, "r") as f:
         l = f.readlines()
-        final_networks = {line.split()[0] for line in l}
-        # the unique set of networks, excluding invalid, duplicate, or subnets
-        expected_networks = set(base_nets + extra_nets) - set(base_nets_to_exclude + extra_nets_to_exclude )
-        assert final_networks == expected_networks
+        final_networks = [line.split()[0] for line in l]
+        # the merged of networks, excluding duplicates and subnets
+        assert sorted(final_networks) == sorted(base_results + extra_results)
 
 
 def test_merge(tmp_path):