optionos.py: Add tests for OptionOS

Same format as OptionArch tests, but with OS's.

3 files changed, 99 insertions, 0 deletions

diff --git a/tests/format/option-os/element.bst b/tests/format/option-os/element.bst
new file mode 100644
index 000000000..8208d67e8
--- /dev/null
+++ b/tests/format/option-os/element.bst
@@ -0,0 +1,12 @@
+kind: autotools
+variables:
+  result: "Nothing"
+  (?):
+  - machine_os == "Linux":
+      result: "Linuxy"
+  - machine_os == "Darwin":
+      result: "Darwiny"
+  - machine_os == "SunOS":
+      result: "SunOSy"
+  - machine_os == "FreeBSD":
+      result: "FreeBSDy"
\ No newline at end of file
diff --git a/tests/format/option-os/project.conf b/tests/format/option-os/project.conf
new file mode 100644
index 000000000..5edb5072f
--- /dev/null
+++ b/tests/format/option-os/project.conf
@@ -0,0 +1,11 @@
+name: test
+
+options:
+  machine_os:
+    type: os
+    description: The operating system
+    values:
+    - Linux
+    - Darwin
+    - FreeBSD
+    - SunOS
diff --git a/tests/format/optionos.py b/tests/format/optionos.py
new file mode 100644
index 000000000..b05d7e49e
--- /dev/null
+++ b/tests/format/optionos.py
@@ -0,0 +1,76 @@
+import os
+import pytest
+from contextlib import contextmanager
+
+from buildstream import _yaml
+from buildstream._exceptions import ErrorDomain, LoadErrorReason
+from tests.testutils.runcli import cli
+
+DATA_DIR = os.path.dirname(os.path.realpath(__file__))
+
+
+@contextmanager
+def override_uname_os(name):
+    orig_uname = os.uname
+    orig_tuple = tuple(os.uname())
+    override_result = (name, orig_tuple[1],
+                       orig_tuple[2], orig_tuple[3],
+                       orig_tuple[4])
+
+    def override():
+        return override_result
+
+    os.uname = override
+    yield
+    os.uname = orig_uname
+
+
+@pytest.mark.datafiles(DATA_DIR)
+@pytest.mark.parametrize("uname,value,expected", [
+    # Test explicitly provided arches
+    ('Darwin', 'Linux', 'Linuxy'),
+    ('SunOS', 'FreeBSD', 'FreeBSDy'),
+
+    # Test automatically derived arches
+    ('Linux', None, 'Linuxy'),
+    ('Darwin', None, 'Darwiny'),
+
+    # Test that explicitly provided arches dont error out
+    # when the `uname` reported arch is not supported
+    ('AIX', 'Linux', 'Linuxy'),
+    ('HaikuOS', 'SunOS', 'SunOSy'),
+])
+def test_conditionals(cli, datafiles, uname, value, expected):
+    with override_uname_os(uname):
+        project = os.path.join(datafiles.dirname, datafiles.basename, 'option-os')
+
+        bst_args = []
+        if value is not None:
+            bst_args += ['--option', 'machine_os', value]
+
+        bst_args += [
+            'show',
+            '--deps', 'none',
+            '--format', '%{vars}',
+            'element.bst'
+        ]
+        result = cli.run(project=project, silent=True, args=bst_args)
+        result.assert_success()
+
+        loaded = _yaml.load_data(result.output)
+        assert loaded['result'] == expected
+
+
+@pytest.mark.datafiles(DATA_DIR)
+def test_unsupported_arch(cli, datafiles):
+
+    with override_uname_os("AIX"):
+        project = os.path.join(datafiles.dirname, datafiles.basename, 'option-os')
+        result = cli.run(project=project, silent=True, args=[
+            'show',
+            '--deps', 'none',
+            '--format', '%{vars}',
+            'element.bst'
+        ])
+
+        result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.INVALID_DATA)