test: raise encoder/decoder coverage (10 lowest-coverage classes)#115

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test/encoder-decoder-coverage

Jun 21, 2026

Commits on Jun 21, 2026

test(reader): cover ZigZagEncodingDecoder decode + broadcast paths

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test(writer): cover SequenceEncodingEncoder integer/float/edge paths

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test(reader): cover VariantEncodingDecoder.dtypeFromProto branches

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test(writer): cover ZigZagEncodingEncoder I8/I16 + accepts

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test(writer): add TimeExtensionEncoder coverage

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test(reader): cover VarBinViewEncodingDecoder guards + Binary dtype

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test(reader): cover VarBinEncodingDecoder I32 offsets + broadcast

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test(reader): cover AlpEncodingDecoder broadcast + patch-index paths

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test(reader): cover DateTimePartsEncodingDecoder guards + Days/nullable

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test(reader): cover DeltaEncodingDecoder null-meta + broadcast paths

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test(reader): use Arena.ofAuto() over Arena.global() in decoder tests

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