test code v1

2026-08-13 10:44:59 +02:00
commit f3b1165f19
301 changed files with 37885 additions and 0 deletions
@@ -0,0 +1,35 @@
+# Test Case: Tailpacking Block Boundaries
+
+**Test ID**: TC034-tailpacking-boundary
+
+## Objective
+
+Verify the actual erofs-utils boundary choices at 4095, 4096, and 4097 bytes,
+including the one-byte inline tail case.
+
+## Fixture
+
+Use `images/inline.erofs` and the three matching files under `source/inline`.
+Structured evidence requires layouts `0,0,2` respectively. A 4095-byte payload
+cannot fit beside a 32-byte inode in one 4096-byte metadata block, so it is not
+claimed as fully inline.
+
+## Procedure
+
+```sh
+for size in 4095 4096 4097; do
+  stat -f '%N size=%z blocks=%b' "$mnt/file-$size.dat"
+  cmp "/tmp/repo22-g1/source/inline/file-$size.dat" "$mnt/file-$size.dat"
+  sha256 "/tmp/repo22-g1/source/inline/file-$size.dat" "$mnt/file-$size.dat"
+done
+./read_probe pread "$mnt/file-4097.dat" 4088 9 /tmp/tc034-boundary
+dd if=/tmp/repo22-g1/source/inline/file-4097.dat \
+  of=/tmp/tc034-source bs=1 skip=4088 count=9 2>/dev/null
+cmp /tmp/tc034-source /tmp/tc034-boundary
+```
+
+## Expected Results
+
+- Exact sizes and full hashes match for all three files.
+- 4095 and 4096 are FLAT_PLAIN; 4097 is FLAT_INLINE with a one-byte tail.
+- The nine-byte cross-boundary range matches; cleanup succeeds.