chore(samples): Adding a test to make sure snippets are up-to-date (#243)

* chore(samples): Adding a test to make sure snippets are up-to-date

Author: m-strzelczyk

compute/compute/sgs.py

@@ -90,6 +90,7 @@ def __repr__(self):
     re.compile(r".*requirements-test\.txt$"),
     re.compile(r".*?/tests/.*"),
     re.compile(r".*?/__pycache__/.*"),
+    re.compile(r".*?sponge_log.xml.*"),
 )
 
 

compute/compute/snippets/instances/create_start_instance/create_with_existing_disks.py

@@ -30,11 +30,11 @@
 
 def get_disk(project_id: str, zone: str, disk_name: str) -> compute_v1.Disk:
     """
-    Deletes a disk from a project.
+    Gets a disk from a project.
 
     Args:
         project_id: project ID or project number of the Cloud project you want to use.
-        zone: name of the zone in which is the disk you want to delete.
+        zone: name of the zone where the disk exists.
         disk_name: name of the disk you want to retrieve.
     """
     disk_client = compute_v1.DisksClient()

compute/compute/test_sgs.py

@@ -16,6 +16,8 @@
 from pathlib import Path
 import tempfile
 
+import pytest
+
 from . import sgs
 
 FIXTURE_INGREDIENTS = Path("sgs_test_fixtures/ingredients")
@@ -30,3 +32,26 @@ def test_sgs_generate():
         for test_file in map(Path, glob.glob(f"{tmp_dir}/**")):
             match_file = FIXTURE_OUTPUT / test_file.relative_to(tmp_dir)
             assert test_file.read_bytes() == match_file.read_bytes()
+
+
+def test_snippets_freshness():
+    """
+    Make sure that the snippets/ folder is up-to-date and matches
+    ingredients/ and recipes/. This test will generate SGS output
+    in a temporary directory and compare it to the content of
+    snippets/ folder.
+    """
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        args = Namespace(output_dir=tmp_dir)
+        sgs.generate(args, Path("ingredients/").absolute(), Path("recipes/").absolute())
+        print(list(map(Path, glob.glob(f"{tmp_dir}/**"))))
+        for test_file in map(Path, glob.glob(f"{tmp_dir}/**", recursive=True)):
+            match_file = Path("snippets/") / test_file.relative_to(tmp_dir)
+            if test_file.is_file():
+                if test_file.read_bytes() != match_file.read_bytes():
+                    pytest.fail(
+                        f"This test fails because file {match_file} seems to be outdated. Please run "
+                        f"`python sgs.py generate` to update your snippets."
+                    )
+            elif test_file.is_dir():
+                assert match_file.is_dir()