chore: count */core/*.py files for code coverage tests (#1080)

* chore: count */core/*.py files for code coverage tests

* counts test coverage for product and test codes seperately

* fail-under=87

Author: chelsea-lin

.coveragerc

@@ -34,6 +34,5 @@ exclude_lines =
 omit =
   */gapic/*.py
   */proto/*.py
-  */core/*.py
   */site-packages/*.py
   google/cloud/__init__.py

noxfile.py

@@ -432,7 +432,15 @@ def cover(session):
     (including system test runs), and then erases coverage data.
     """
     session.install("coverage", "pytest-cov")
-    session.run("coverage", "report", "--show-missing", "--fail-under=90")
+
+    # Create a coverage report that includes only the product code.
+    session.run(
+        "coverage",
+        "report",
+        "--include=bigframes/*",
+        "--show-missing",
+        "--fail-under=86",
+    )
 
     # Make sure there is no dead code in our test directories.
     session.run(

owlbot.py

@@ -130,6 +130,13 @@
     "BigQuery DataFrames provides DataFrame APIs on the BigQuery engine",
 )
 
+# Don't omit `*/core/*.py` when counting test coverages
+assert 1 == s.replace(
+    [".coveragerc"],
+    re.escape("  */core/*.py\n"),
+    "",
+)
+
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