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ludic.save save_write_tree: a tree straight to disk through Json.write_file, the backup and read-back kept; ludic.telemetry writes its id file the same way

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 15:42:59 +03:00
parent edb33400b3
commit 045ab0cdf6
4 changed files with 46 additions and 3 deletions
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19
packages/ludic.save/tests/save_test.ludic
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@ -91,6 +91,25 @@ program SaveTest {
expect(Fs.read_text(bak()) == "{\"body\": \"one\", \"version\": 3}")
}
test "a tree is written straight to the file, and the old file backed up only when whole" {
fresh()
let v = value_object()
value_put(v, "body", value_str("one"))
value_put(v, "version", value_int(3))
expect(save_write_tree(path(), bak(), v))
expect(not Fs.exists(bak()))
expect(Fs.read_text(path()) == Json.encode(v))
value_put(v, "body", value_str("two"))
expect(save_write_tree(path(), bak(), v))
expect(save_file_intact(bak()))
expect(save_open(path(), bak(), fmt()).status == SAVE_OK)
Fs.write_text(path(), "{\"body\": \"thr")
expect(save_write_tree(path(), bak(), v))
expect(save_int(Json.parse(Fs.read_text(bak())), "version", 0) == 3)
let r = save_open(path(), bak(), fmt())
r.readonly = true
expect(not save_write_tree_to(r, path(), bak(), v))
}
test "the backup stands in for a damaged file, and both damaged is read-only" {
fresh()
Fs.write_text(path(), "{\"body\": \"cut")