Add buildless tests

java/integration-tests-lib/buildless_test_utils.py

@@ -0,0 +1,37 @@
+import sys
+import os.path
+import glob
+
+def extract_fetched_jar_path(l):
+  if not l.startswith("["):
+    # Line continuation
+    return None
+  bits = l.split(" ", 3) # date time processid logline
+  if len(bits) >= 4 and bits[3].startswith("Fetch "):
+    return bits[3][6:].strip()
+  else:
+    return None
+
+def read_fetched_jars(fname):
+  with open(fname, "r") as f:
+    lines = [l for l in f]
+    return [l for l in map(extract_fetched_jar_path, lines) if l is not None]
+
+def check_buildless_fetches():
+
+  extractor_logs = glob.glob(os.path.join("test-db", "log", "javac-extractor-*.log"))
+  fetched_jars = map(read_fetched_jars, extractor_logs)
+  all_fetched_jars = tuple(sorted([item for sublist in fetched_jars for item in sublist]))
+
+  try:
+    with open("buildless-fetches.expected", "r") as f:  
+      expected_jar_fetches = tuple(l.strip() for l in f)
+  except FileNotFoundError:
+    expected_jar_fetches = tuple()
+
+  if all_fetched_jars != expected_jar_fetches:
+    print("Expected jar fetch mismatch. Expected:\n%s\n\nActual:\n%s" % ("\n".join(expected_jar_fetches), "\n".join(all_fetched_jars)), file = sys.stderr)
+    with open("buildless-fetches.actual", "w") as f:
+      for j in all_fetched_jars:
+        f.write(j + "\n")
+    sys.exit(1)