[[file: open successful
file: read: [0]
file: read: [1]
-file: read failed: I/O error: file: error reading 4 bytes starting at offset 170 (unexpected end of file)
+file: read failed: I/O error: file: error reading 4 bytes starting at offset 170 (End of file)
file: write:["longer data"] successful
]], [ignore])
AT_CHECK(