Add tests for validating configuration variables

3 files changed, 101 insertions, 0 deletions

diff --git a/tests/loader/variables.py b/tests/loader/variables.py
new file mode 100644
index 000000000..9871d63c6
--- /dev/null
+++ b/tests/loader/variables.py
@@ -0,0 +1,99 @@
+import os
+import pytest
+
+from buildstream import _yaml
+from buildstream._exceptions import ErrorDomain, LoadErrorReason
+from tests.testutils import cli
+
+DATA_DIR = os.path.join(
+    os.path.dirname(os.path.realpath(__file__)),
+    'variables',
+)
+
+PROTECTED_VARIABLES = [('project-name'), ('element-name'), ('max-jobs')]
+
+
+@pytest.mark.parametrize('protected_var', PROTECTED_VARIABLES)
+@pytest.mark.datafiles(DATA_DIR)
+def test_use_of_protected_var_project_conf(cli, tmpdir, datafiles, protected_var):
+    project = os.path.join(str(datafiles), 'simple')
+
+    conf = {
+        'name': 'test',
+        'variables': {
+            protected_var: 'some-value'
+        }
+    }
+    _yaml.dump(conf, os.path.join(project, 'project.conf'))
+
+    element = {
+        'kind': 'import',
+        'sources': [
+            {
+                'kind': 'local',
+                'path': 'foo.txt'
+            }
+        ],
+    }
+    _yaml.dump(element, os.path.join(project, 'target.bst'))
+
+    result = cli.run(project=project, args=['build', 'target.bst'])
+    result.assert_main_error(ErrorDomain.LOAD,
+                             LoadErrorReason.PROTECTED_VARIABLE_REDEFINED)
+
+
+@pytest.mark.parametrize('protected_var', PROTECTED_VARIABLES)
+@pytest.mark.datafiles(DATA_DIR)
+def test_use_of_protected_var_element_overrides(cli, tmpdir, datafiles, protected_var):
+    project = os.path.join(str(datafiles), 'simple')
+
+    conf = {
+        'name': 'test',
+        'elements': {
+            'manual': {
+                'variables': {
+                    protected_var: 'some-value'
+                }
+            }
+        }
+    }
+    _yaml.dump(conf, os.path.join(project, 'project.conf'))
+
+    element = {
+        'kind': 'manual',
+        'sources': [
+            {
+                'kind': 'local',
+                'path': 'foo.txt'
+            }
+        ],
+    }
+    _yaml.dump(element, os.path.join(project, 'target.bst'))
+
+    result = cli.run(project=project, args=['build', 'target.bst'])
+    result.assert_main_error(ErrorDomain.LOAD,
+                             LoadErrorReason.PROTECTED_VARIABLE_REDEFINED)
+
+
+@pytest.mark.parametrize('protected_var', PROTECTED_VARIABLES)
+@pytest.mark.datafiles(DATA_DIR)
+def test_use_of_protected_var_in_element(cli, tmpdir, datafiles, protected_var):
+    project = os.path.join(str(datafiles), 'simple')
+
+    element = {
+        'kind': 'import',
+        'sources': [
+            {
+                'kind': 'local',
+                'path': 'foo.txt'
+            }
+        ],
+        'variables': {
+            protected_var: 'some-value'
+        }
+    }
+    _yaml.dump(element, os.path.join(project, 'target.bst'))
+
+    result = cli.run(project=project, args=['build', 'target.bst'])
+    result.assert_main_error(ErrorDomain.LOAD,
+                             LoadErrorReason.PROTECTED_VARIABLE_REDEFINED)
diff --git a/tests/loader/variables/simple/foo.txt b/tests/loader/variables/simple/foo.txt
new file mode 100644
index 000000000..257cc5642
--- /dev/null
+++ b/tests/loader/variables/simple/foo.txt
@@ -0,0 +1 @@
+foo
diff --git a/tests/loader/variables/simple/project.conf b/tests/loader/variables/simple/project.conf
new file mode 100644
index 000000000..5a240e3ed
--- /dev/null
+++ b/tests/loader/variables/simple/project.conf
@@ -0,0 +1 @@
+name: foo