1 files changed, 57 insertions, 0 deletions
diff --git a/tests/unittests/test_render_cloudcfg.py b/tests/unittests/test_render_cloudcfg.py
new file mode 100644
index 00000000..8b1e6042
--- /dev/null
+++ b/tests/unittests/test_render_cloudcfg.py
@@ -0,0 +1,57 @@
+"""Tests for tools/render-cloudcfg"""
+
+import os
+import sys
+
+import pytest
+
+from cloudinit import util
+
+# TODO(Look to align with tools.render-cloudcfg or cloudinit.distos.OSFAMILIES)
+DISTRO_VARIANTS = ["amazon", "arch", "centos", "debian", "fedora", "freebsd",
+                   "netbsd", "openbsd", "rhel", "suse", "ubuntu", "unknown"]
+
+
+class TestRenderCloudCfg:
+
+    cmd = [sys.executable, os.path.realpath('tools/render-cloudcfg')]
+    tmpl_path = os.path.realpath('config/cloud.cfg.tmpl')
+
+    @pytest.mark.parametrize('variant', (DISTRO_VARIANTS))
+    def test_variant_sets_distro_in_cloud_cfg(self, variant, tmpdir):
+        outfile = tmpdir.join('outcfg').strpath
+        util.subp(
+            self.cmd + ['--variant', variant, self.tmpl_path, outfile])
+        with open(outfile) as stream:
+            system_cfg = util.load_yaml(stream.read())
+        if variant == 'unknown':
+            variant = 'ubuntu'  # Unknown is defaulted to ubuntu
+        assert system_cfg['system_info']['distro'] == variant
+
+    @pytest.mark.parametrize('variant', (DISTRO_VARIANTS))
+    def test_variant_sets_default_user_in_cloud_cfg(self, variant, tmpdir):
+        outfile = tmpdir.join('outcfg').strpath
+        util.subp(
+            self.cmd + ['--variant', variant, self.tmpl_path, outfile])
+        with open(outfile) as stream:
+            system_cfg = util.load_yaml(stream.read())
+
+        default_user_exceptions = {
+            'amazon': 'ec2-user', 'debian': 'ubuntu', 'unknown': 'ubuntu'}
+        default_user = system_cfg['system_info']['default_user']['name']
+        assert default_user == default_user_exceptions.get(variant, variant)
+
+    @pytest.mark.parametrize('variant,renderers', (
+        ('freebsd', ['freebsd']), ('netbsd', ['netbsd']),
+        ('openbsd', ['openbsd']), ('ubuntu', ['netplan', 'eni', 'sysconfig']))
+    )
+    def test_variant_sets_network_renderer_priority_in_cloud_cfg(
+        self, variant, renderers, tmpdir
+    ):
+        outfile = tmpdir.join('outcfg').strpath
+        util.subp(
+            self.cmd + ['--variant', variant, self.tmpl_path, outfile])
+        with open(outfile) as stream:
+            system_cfg = util.load_yaml(stream.read())
+
+        assert renderers == system_cfg['system_info']['network']['renderers']