libdcp/test/ref/write_interop_subtitle_test3, branch warnings

Write OriginalFileName tags in PKL (DoM #2394).

2022-12-22T22:43:03Z

Without these it EasyDCP gives errors like "Id field in PKL must match uuid in asset" "Each Id used in the PKL files must be unique or reference the same file" which seem wrong but, as usual, here we are.

Make some tests repeatable across platforms.

2022-05-04T17:37:38Z

Nearly pretty-print subtitle XML (though not in nodes).

2022-03-20T20:20:58Z

This is an attempt to fix DoM bug #2205.

Use optional for ReelAsset _annotation_text.

2022-01-17T19:16:52Z

Not only is this tag optional in Interop and SMPTE, but it would appear that if it is present but empty a DCP will not play back on Sony SRX320 / LMT3000 systems (DoM bug #2124). Here we use optional<>, as seems to make sense, and also refuse to write empty tags (instead omitting the tag entirely).

Test churn from adding make_uuid() into CPL.

2021-06-01T23:44:34Z

Bv2.1 7.2.3: Check that subtitle exists and is 0.

2021-01-17T19:13:22Z

Use the read in when the Reel was created from XML (if appropriate)

2020-09-09T20:41:52Z

when writing it out again, rather than creating a new one each time. Also there is the associated test churn here from removing a call to make_uuid().

Fix up some tests.

2020-07-12T13:37:13Z

Hopefully make all tests stable enough to be run with --random,

2020-07-11T19:11:48Z

stopping test reference churn.

Accept that and are optional, and account for this in tests.

2019-03-18T00:29:47Z

Also fix tests to reflect no longer being filled in with a default value.