add config tests

docs/content/configuration/defaults.md

@@ -34,7 +34,7 @@ exclude_tags: []
 pve:
     server:
     user:
-    password
+    password:
     auth_timeout: 5
     verify_ssl: true
 

prometheuspvesd/test/data/config.yml

@@ -0,0 +1,24 @@
+---
+logging:
+  level: warning
+  format: console
+
+metrics:
+  enabled: true
+  address: "127.0.0.1"
+  port: 8000
+
+output_file: dummy
+loop_delay: 300
+service: true
+
+exclude_state: []
+exclude_vmid: []
+exclude_tags: []
+
+pve:
+  server: proxmox.example.com
+  user: root
+  password: secure
+  auth_timeout: 5
+  verify_ssl: true

prometheuspvesd/test/data/config_error.yml

@@ -1,4 +0,0 @@
----
-exclude_vmid:
-  - 100
-  - "101"

prometheuspvesd/test/fixtures/fixtures.py

@@ -109,7 +109,7 @@ def builtins():
 
 
 @pytest.fixture
-def defaults():
+def required():
     return {
         "exclude_state": [],
         "exclude_tags": [],
@@ -136,6 +136,34 @@ def defaults():
     }
 
 
+@pytest.fixture
+def defaults():
+    return {
+        "exclude_state": [],
+        "exclude_tags": [],
+        "exclude_vmid": [],
+        "logging": {
+            "format": "console",
+            "level": "WARNING"
+        },
+        "loop_delay": 300,
+        "metrics": {
+            "address": "127.0.0.1",
+            "enabled": True,
+            "port": 8000
+        },
+        "output_file": "dummy",
+        "pve": {
+            "auth_timeout": 5,
+            "password": "",
+            "server": "",
+            "user": "",
+            "verify_ssl": True
+        },
+        "service": True,
+    }
+
+
 @pytest.fixture
 def qemus():
     return [

prometheuspvesd/test/unit/test_config.py

@@ -0,0 +1,35 @@
+"""Test Config class."""
+import pytest
+import ruamel.yaml
+
+import prometheuspvesd.exception
+from prometheuspvesd.config import Config
+
+pytest_plugins = [
+    "prometheuspvesd.test.fixtures.fixtures",
+]
+
+
+def test_yaml_config(mocker, defaults):
+    mocker.patch(
+        "prometheuspvesd.config.default_config_file", "./prometheuspvesd/test/data/config.yml"
+    )
+    config = Config()
+
+    defaults["pve"]["user"] = "root"
+    defaults["pve"]["password"] = "secure"
+    defaults["pve"]["server"] = "proxmox.example.com"
+
+    assert config.config == defaults
+
+
+def test_yaml_config_error(mocker, capsys):
+    mocker.patch(
+        "prometheuspvesd.config.default_config_file", "./prometheuspvesd/test/data/config.yml"
+    )
+    mocker.patch.object(ruamel.yaml.YAML, "load", side_effect=ruamel.yaml.composer.ComposerError)
+
+    with pytest.raises(prometheuspvesd.exception.ConfigError) as e:
+        Config()
+
+    assert "Unable to read config file ./prometheuspvesd/test/data/config.yml" in str(e.value)