test: PR with more lines than GH allows for raw diffs

app/diff_generator.py

@@ -0,0 +1,26 @@
+# - Total diff: max 20,000 lines or 1 MB of raw data
+# - Per-file diff: max 20,000 lines or 500 KB of raw data
+# - Files in diff: max 300 files
+#
+# ┌─────────────┬─────────────────────────┬────────────────────────┬────────────────────────────────────┐
+# │   Method    │       File limit        │       Size limit       │            On overflow             │
+# ├─────────────┼─────────────────────────┼────────────────────────┼────────────────────────────────────┤
+# │ Raw diff    │ 300 files               │ 20k lines / 1 MB total │ HTTP 406                           │
+# ├─────────────┼─────────────────────────┼────────────────────────┼────────────────────────────────────┤
+# │ get_files() │ 3,000 files (paginated) │ N/A (no total limit)   │ patch field missing on large files │
+# └─────────────┴─────────────────────────┴────────────────────────┴────────────────────────────────────┘
+#
+# In this case we want to test:
+# - 1 file (very large file) that the patch will be missing from being too large
+# - More lines than raw diff will allow
+#
+# Expected result: raw diff fails with 406 code but get_files() returns all patches except for 1
+
+for i in range(300):
+    with open(f"z_changed_file_{i}.txt", "w") as fd:
+        for j in range(100):
+            fd.write(f"added line {j + 1}\n")
+
+with open("very_large_file.txt", "w") as fd:
+    for i in range(2_001):
+        fd.write(f"added line {i + 1}\n")