[6.14.z] Add a test for parameter precedence on the host (#13636)

tests/foreman/api/test_parameters.py

@@ -0,0 +1,76 @@
+"""Tests for parameters
+
+:Requirement: Parameters
+
+:CaseAutomation: Automated
+
+:CaseLevel: Acceptance
+
+:CaseComponent: Parameters
+
+:Team: Rocket
+
+:TestType: Functional
+
+:CaseImportance: Critical
+
+:Upstream: No
+"""
+from fauxfactory import gen_string
+import pytest
+
+
+@pytest.mark.tier1
+@pytest.mark.e2e
+@pytest.mark.upgrade
+def test_positive_parameter_precedence_impact(
+    request, module_org, module_location, module_target_sat
+):
+    """Check parameter precedences for Global, Hostgroup, and Host parameters
+
+    :id: 8dd6c4e8-4ec9-4bee-8a04-f5788960979b
+
+    :steps:
+        1. Create Global Parameter
+        2. Create host and verify global parameter is assigned
+        3. Create Host Group with parameter
+        4. Assign hostgroup to host created above and verify hostgroup parameter is assigned.
+        5. Add parameter on the host directly, and verify that this should take precedence
+            over Host group and Global Parameter
+
+    :expectedresults: Host parameter take precedence over hostgroup and global parameter,
+        and hostgroup take precedence over global parameter when there are no host parameters
+    """
+    param_name = gen_string('alpha')
+    param_value = gen_string('alpha')
+
+    cp = module_target_sat.api.CommonParameter(name=param_name, value=param_value).create()
+    host = module_target_sat.api.Host(organization=module_org, location=module_location).create()
+    result = [res for res in host.all_parameters if res['name'] == param_name]
+    assert result[0]['name'] == param_name
+    assert result[0]['associated_type'] == 'global'
+
+    hg = module_target_sat.api.HostGroup(
+        organization=[module_org],
+        group_parameters_attributes=[{'name': param_name, 'value': param_value}],
+    ).create()
+    host.hostgroup = hg
+    host = host.update(['hostgroup'])
+    result = [res for res in host.all_parameters if res['name'] == param_name]
+    assert result[0]['name'] == param_name
+    assert result[0]['associated_type'] != 'global'
+    assert result[0]['associated_type'] == 'host group'
+
+    @request.addfinalizer
+    def _finalize():
+        host.delete()
+        hg.delete()
+        cp.delete()
+
+    host.host_parameters_attributes = [{'name': param_name, 'value': param_value}]
+    host = host.update(['host_parameters_attributes'])
+    result = [res for res in host.all_parameters if res['name'] == param_name]
+    assert result[0]['name'] == param_name
+    assert result[0]['associated_type'] != 'global'
+    assert result[0]['associated_type'] != 'host group'
+    assert result[0]['associated_type'] == 'host'