diff --git a/roles/backup_server/molecule/default/tests/test_default.py b/roles/backup_server/molecule/default/tests/test_default.py
index eaca91ed06efbae0b6a1e0e521f535411cceccd3..72cac4603998a6895dddd9c3440de39d1660efb7 100644
--- a/roles/backup_server/molecule/default/tests/test_default.py
+++ b/roles/backup_server/molecule/default/tests/test_default.py
@@ -39,7 +39,7 @@ def test_regular_ssh_server_configuration(host):
 
     with host.sudo():
 
-        assert "DenyGroups backup" in host.file('/etc/ssh/sshd_config').content
+        assert "DenyGroups backup" in host.file('/etc/ssh/sshd_config').content_string
 
 
 def test_backup_ssh_server_configuration_directory(host):
@@ -70,7 +70,7 @@ def test_backup_ssh_server_service_configuration(host):
     assert config_file.user == 'root'
     assert config_file.group == 'root'
     assert config_file.mode == 0o644
-    assert 'SSHD_OPTS="-f /etc/ssh-backup/sshd_config"' in config_file.content
+    assert 'SSHD_OPTS="-f /etc/ssh-backup/sshd_config"' in config_file.content_string
 
 
 def test_backup_ssh_server_configuration(host):
@@ -86,16 +86,16 @@ def test_backup_ssh_server_configuration(host):
         assert config_file.user == 'root'
         assert config_file.group == 'root'
         assert config_file.mode == 0o600
-        assert "AllowGroups backup" in config_file.content
-        assert "ChrootDirectory %h" in config_file.content
-        assert "ForceCommand internal-sftp" in config_file.content
-        assert "Subsystem sftp internal-sftp" in config_file.content
-        assert "PasswordAuthentication no" in config_file.content
-        assert "PubkeyAuthentication yes" in config_file.content
-        assert "PermitRootLogin no" in config_file.content
-        assert "HostKey /etc/ssh-backup/ssh_host_rsa_key" in config_file.content
-        assert "HostKey /etc/ssh-backup/ssh_host_ecdsa_key" in config_file.content
-        assert "HostKey /etc/ssh-backup/ssh_host_ed25519_key" in config_file.content
+        assert "AllowGroups backup" in config_file.content_string
+        assert "ChrootDirectory %h" in config_file.content_string
+        assert "ForceCommand internal-sftp" in config_file.content_string
+        assert "Subsystem sftp internal-sftp" in config_file.content_string
+        assert "PasswordAuthentication no" in config_file.content_string
+        assert "PubkeyAuthentication yes" in config_file.content_string
+        assert "PermitRootLogin no" in config_file.content_string
+        assert "HostKey /etc/ssh-backup/ssh_host_rsa_key" in config_file.content_string
+        assert "HostKey /etc/ssh-backup/ssh_host_ecdsa_key" in config_file.content_string
+        assert "HostKey /etc/ssh-backup/ssh_host_ed25519_key" in config_file.content_string
 
 
 def test_backup_ssh_server_keys(host):
@@ -110,28 +110,28 @@ def test_backup_ssh_server_keys(host):
         assert dsa.user == 'root'
         assert dsa.group == 'root'
         assert dsa.mode == 0o600
-        assert dsa.content == open('tests/data/ssh/server_dsa', 'r').read()
+        assert dsa.content_string == open('tests/data/ssh/server_dsa', 'r').read()
 
         rsa = host.file('/etc/ssh-backup/ssh_host_rsa_key')
         assert rsa.is_file
         assert rsa.user == 'root'
         assert rsa.group == 'root'
         assert rsa.mode == 0o600
-        assert rsa.content == open('tests/data/ssh/server_rsa', 'r').read()
+        assert rsa.content_string == open('tests/data/ssh/server_rsa', 'r').read()
 
         ed25519 = host.file('/etc/ssh-backup/ssh_host_ed25519_key')
         assert ed25519.is_file
         assert ed25519.user == 'root'
         assert ed25519.group == 'root'
         assert ed25519.mode == 0o600
-        assert ed25519.content == open('tests/data/ssh/server_ed25519', 'r').read()
+        assert ed25519.content_string == open('tests/data/ssh/server_ed25519', 'r').read()
 
         ecdsa = host.file('/etc/ssh-backup/ssh_host_ecdsa_key')
         assert ecdsa.is_file
         assert ecdsa.user == 'root'
         assert ecdsa.group == 'root'
         assert ecdsa.mode == 0o600
-        assert ecdsa.content == open('tests/data/ssh/server_ecdsa', 'r').read()
+        assert ecdsa.content_string == open('tests/data/ssh/server_ecdsa', 'r').read()
 
 
 def test_backup_ssh_server_systemd_service(host):
@@ -146,7 +146,7 @@ def test_backup_ssh_server_systemd_service(host):
     assert service_file.user == 'root'
     assert service_file.group == 'root'
     assert service_file.mode == 0o644
-    assert "EnvironmentFile=-/etc/default/ssh-backup" in service_file.content
+    assert "EnvironmentFile=-/etc/default/ssh-backup" in service_file.content_string
 
 
 def test_backup_ssh_server_service(host):