pogs subdir tests failing

[glycerine]

pogs seems pretty awesome. Very similar to what I ended up doing in practice anyway: I always ended up defining a plain Go struct that mirrored the capnp struct (and thus motivated the github.com/glycerine/bambam mini-project for the reverse direction). So I'd love to see go-capnproto2's pogs in action.

Strangely the tests seem to fail for me, using go1.7 on osx 10.11.6 El Capitan.

Certainly could be user error on my part...I didn't try to troubleshoot much here... please advise.

jaten@jatens-MacBook-Pro ~/src/zombiezen.com/go/capnproto2/pogs (master) $ go test -v
go test -v
=== RUN   TestExtract_Embed
--- FAIL: TestExtract_Embed (0.00s)
    embed_test.go:40: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:43: Extract produced {}; want {VerVal:{Val:123}}
=== RUN   TestExtract_EmbedPtr
--- FAIL: TestExtract_EmbedPtr (0.00s)
    embed_test.go:60: Extract error: pogs: extract @0xf705dc45c94766fd: unexpected EOF
    embed_test.go:63: Extract produced {}; want {VerVal:{Val:123},Duo:456}
=== RUN   TestExtract_EmbedOmit
--- FAIL: TestExtract_EmbedOmit (0.00s)
    embed_test.go:80: Extract error: pogs: extract @0xf705dc45c94766fd: unexpected EOF
    embed_test.go:83: Extract produced {}; want {Duo:456}
=== RUN   TestExtract_EmbedName
--- FAIL: TestExtract_EmbedName (0.00s)
    embed_test.go:108: Extract error: pogs: extract @0xe1c9eac512335361: unexpected EOF
    embed_test.go:111: Extract produced {}; want {PlaneBase:{Name:"ALL YOUR BASE",Rating:5,CanFly:true}}
=== RUN   TestInsert_Embed
--- FAIL: TestInsert_Embed (0.00s)
    embed_test.go:127: Insert({VerVal:{Val:123}}) error: pogs: insert @0xfca3742893be4cde: unexpected EOF
    embed_test.go:130: Insert({VerVal:{Val:123}}) produced 
=== RUN   TestInsert_EmbedPtr
--- FAIL: TestInsert_EmbedPtr (0.00s)
    embed_test.go:146: Insert({VerVal:{Val:123},Duo:456}) error: pogs: insert @0xf705dc45c94766fd: unexpected EOF
    embed_test.go:149: Insert({VerVal:{Val:123},Duo:456}) produced 
=== RUN   TestInsert_EmbedNilPtr
--- FAIL: TestInsert_EmbedNilPtr (0.00s)
    embed_test.go:165: Insert({Duo:456}) error: pogs: insert @0xf705dc45c94766fd: unexpected EOF
    embed_test.go:168: Insert({Duo:456}) produced 
=== RUN   TestInsert_EmbedOmit
--- FAIL: TestInsert_EmbedOmit (0.00s)
    embed_test.go:184: Insert({VerVal:{Val:123},Duo:456}) error: pogs: insert @0xf705dc45c94766fd: unexpected EOF
    embed_test.go:187: Insert({VerVal:{Val:123},Duo:456}) produced 
=== RUN   TestInsert_EmbedNamed
--- FAIL: TestInsert_EmbedNamed (0.00s)
    embed_test.go:203: Insert({PlaneBase:{Name:"ALL YOUR BASE",Rating:5,CanFly:true}}) error: pogs: insert @0xe1c9eac512335361: unexpected EOF
    embed_test.go:214: Insert({PlaneBase:{Name:"ALL YOUR BASE",Rating:5,CanFly:true}}) produced 
=== RUN   TestExtract_EmbedCollide
--- FAIL: TestExtract_EmbedCollide (0.00s)
    embed_test.go:303: top: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:306: top: Extract produced {}; want {Val:123}
    embed_test.go:303: no tags: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:303: 1 tag: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:306: 1 tag: Extract produced {}; want {VerValTag1:{Val:123}}
    embed_test.go:303: 1 tag with untagged: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:306: 1 tag with untagged: Extract produced {}; want {VerValTag1:{Val:123}}
    embed_test.go:303: 2 tags: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:303: 3 tags: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:303: top with lower collision: Extract error: pogs: extract @0xfca3742893be4cde: unexpected EOF
    embed_test.go:306: top with lower collision: Extract produced {}; want {Val:123}
=== RUN   TestInsert_EmbedCollide
--- FAIL: TestInsert_EmbedCollide (0.00s)
    embed_test.go:354: top: Insert(..., {Val:123,VerVal:{Val:456}}): %!v(MISSING)
    embed_test.go:357: top: Insert(..., {Val:123,VerVal:{Val:456}}) produced ; want (val = 123)
    embed_test.go:354: no tags: Insert(..., {VerVal:{Val:123},VerValNoTag:{Val:456}}): %!v(MISSING)
    embed_test.go:354: 1 tag: Insert(..., {VerVal:{Val:123},VerValTag1:{Val:456}}): %!v(MISSING)
    embed_test.go:357: 1 tag: Insert(..., {VerVal:{Val:123},VerValTag1:{Val:456}}) produced ; want (val = 456)
    embed_test.go:354: 1 tag with untagged: Insert(..., {VerVal:{Val:123},VerValTag1:{Val:456},VerValNoTag:{Val:789}}): %!v(MISSING)
    embed_test.go:357: 1 tag with untagged: Insert(..., {VerVal:{Val:123},VerValTag1:{Val:456},VerValNoTag:{Val:789}}) produced ; want (val = 456)
    embed_test.go:354: 2 tags: Insert(..., {VerValTag1:{Val:123},VerValTag2:{Val:456}}): %!v(MISSING)
    embed_test.go:354: 3 tags: Insert(..., {VerValTag1:{Val:123},VerValTag2:{Val:456},VerValTag3:{Val:789}}): %!v(MISSING)
    embed_test.go:354: top with lower collision: Insert(..., {Val:123,VerVal:{Val:456},VerValNoTag:{Val:789}}): %!v(MISSING)
    embed_test.go:357: top with lower collision: Insert(..., {Val:123,VerVal:{Val:456},VerValNoTag:{Val:789}}) produced ; want (val = 123)
=== RUN   TestExtract
--- FAIL: TestExtract (0.00s)
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:2,F64:3.5}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:3,F32:3.5}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:4,I64:-123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:5,I32:-123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:6,I16:-123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:7,I8:-123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:8,U64:123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:9,U32:123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:10,U16:123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:11,U8:123}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:12,Bool:true}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:12}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:13,Text:"Hello, World!"}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:14,Blob:[72,101,108,108,111,44,32,87,111,114,108,100,33]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:15}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:15,F64vec:[-2,4.5]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:16}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:16,F32vec:[-2,4.5]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:17}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:17,I64vec:[-123,0,123]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:20}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:20,I8vec:[-123,0,123]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:21}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:21,U64vec:[0,123]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:24}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:24,U8vec:[0,123]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:39}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:39,Boolvec:[false,true,false]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:40}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:40,Datavec:[[104,105],[98,121,101]]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:41}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:41,Textvec:["John","Paul","George","Ringo"]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:25,Zvec:[{Which:4,I64:-123},{Which:13,Text:"Hi"}]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:26,Zvecvec:[[{Which:4,I64:1},{Which:4,I64:2}],[{Which:4,I64:3},{Which:4,I64:4}]]}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:32}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:32,Planebase:{Name:"Boeing",Homes:[2,5],Rating:123,CanFly:true,Capacity:100,MaxSpeed:9001}}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:33,Airport:2}
    pogs_test.go:148: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:151: Extract() produced {}; want {Which:42,Grp:{First:123,Second:456}}
=== RUN   TestInsert
--- FAIL: TestInsert (0.00s)
    pogs_test.go:170: Insert({Which:2,F64:3.5}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:2,F64:3.5}) produced 
    pogs_test.go:170: Insert({Which:3,F32:3.5}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:3,F32:3.5}) produced 
    pogs_test.go:170: Insert({Which:4,I64:-123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:4,I64:-123}) produced 
    pogs_test.go:170: Insert({Which:5,I32:-123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:5,I32:-123}) produced 
    pogs_test.go:170: Insert({Which:6,I16:-123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:6,I16:-123}) produced 
    pogs_test.go:170: Insert({Which:7,I8:-123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:7,I8:-123}) produced 
    pogs_test.go:170: Insert({Which:8,U64:123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:8,U64:123}) produced 
    pogs_test.go:170: Insert({Which:9,U32:123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:9,U32:123}) produced 
    pogs_test.go:170: Insert({Which:10,U16:123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:10,U16:123}) produced 
    pogs_test.go:170: Insert({Which:11,U8:123}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:11,U8:123}) produced 
    pogs_test.go:170: Insert({Which:12,Bool:true}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:12,Bool:true}) produced 
    pogs_test.go:170: Insert({Which:12}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:12}) produced 
    pogs_test.go:170: Insert({Which:13,Text:"Hello, World!"}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:13,Text:"Hello, World!"}) produced 
    pogs_test.go:170: Insert({Which:14,Blob:[72,101,108,108,111,44,32,87,111,114,108,100,33]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:14,Blob:[72,101,108,108,111,44,32,87,111,114,108,100,33]}) produced 
    pogs_test.go:170: Insert({Which:15}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:15}) produced 
    pogs_test.go:170: Insert({Which:15,F64vec:[-2,4.5]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:15,F64vec:[-2,4.5]}) produced 
    pogs_test.go:170: Insert({Which:16}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:16}) produced 
    pogs_test.go:170: Insert({Which:16,F32vec:[-2,4.5]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:16,F32vec:[-2,4.5]}) produced 
    pogs_test.go:170: Insert({Which:17}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:17}) produced 
    pogs_test.go:170: Insert({Which:17,I64vec:[-123,0,123]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:17,I64vec:[-123,0,123]}) produced 
    pogs_test.go:170: Insert({Which:20}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:20}) produced 
    pogs_test.go:170: Insert({Which:20,I8vec:[-123,0,123]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:20,I8vec:[-123,0,123]}) produced 
    pogs_test.go:170: Insert({Which:21}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:21}) produced 
    pogs_test.go:170: Insert({Which:21,U64vec:[0,123]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:21,U64vec:[0,123]}) produced 
    pogs_test.go:170: Insert({Which:24}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:24}) produced 
    pogs_test.go:170: Insert({Which:24,U8vec:[0,123]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:24,U8vec:[0,123]}) produced 
    pogs_test.go:170: Insert({Which:39}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:39}) produced 
    pogs_test.go:170: Insert({Which:39,Boolvec:[false,true,false]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:39,Boolvec:[false,true,false]}) produced 
    pogs_test.go:170: Insert({Which:40}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:40}) produced 
    pogs_test.go:170: Insert({Which:40,Datavec:[[104,105],[98,121,101]]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:40,Datavec:[[104,105],[98,121,101]]}) produced 
    pogs_test.go:170: Insert({Which:41}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:41}) produced 
    pogs_test.go:170: Insert({Which:41,Textvec:["John","Paul","George","Ringo"]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:41,Textvec:["John","Paul","George","Ringo"]}) produced 
    pogs_test.go:170: Insert({Which:25,Zvec:[{Which:4,I64:-123},{Which:13,Text:"Hi"}]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:25,Zvec:[{Which:4,I64:-123},{Which:13,Text:"Hi"}]}) produced 
    pogs_test.go:170: Insert({Which:26,Zvecvec:[[{Which:4,I64:1},{Which:4,I64:2}],[{Which:4,I64:3},{Which:4,I64:4}]]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:26,Zvecvec:[[{Which:4,I64:1},{Which:4,I64:2}],[{Which:4,I64:3},{Which:4,I64:4}]]}) produced 
    pogs_test.go:170: Insert({Which:32}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:32}) produced 
    pogs_test.go:170: Insert({Which:32,Planebase:{Name:"Boeing",Homes:[2,5],Rating:123,CanFly:true,Capacity:100,MaxSpeed:9001}}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:32,Planebase:{Name:"Boeing",Homes:[2,5],Rating:123,CanFly:true,Capacity:100,MaxSpeed:9001}}) produced 
    pogs_test.go:170: Insert({Which:33,Airport:2}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:33,Airport:2}) produced 
    pogs_test.go:170: Insert({Which:42,Grp:{First:123,Second:456}}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:175: Insert({Which:42,Grp:{First:123,Second:456}}) produced 
=== RUN   TestInsert_Size
--- FAIL: TestInsert_Size (0.00s)
    pogs_test.go:403: void into 0-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=8 ptrs=0}), {}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: void into 1-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=9 ptrs=0}), {}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: bool into 1 byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=9 ptrs=0}), {Which:12,Bool:true}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: int8 into 1-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=9 ptrs=0}), {Which:7,I8:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: uint8 into 1-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=9 ptrs=0}), {Which:11,U8:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: int16 into 2-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=10 ptrs=0}), {Which:6,I16:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: uint16 into 2-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=10 ptrs=0}), {Which:10,U16:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: enum into 2-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=10 ptrs=0}), {Which:33,Airport:1}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: int32 into 4-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=12 ptrs=0}), {Which:5,I32:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: uint32 into 4-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=12 ptrs=0}), {Which:9,U32:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: float32 into 4-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=12 ptrs=0}), {Which:3,F32:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: int64 into 8-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=16 ptrs=0}), {Which:4,I64:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: uint64 into 8-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=16 ptrs=0}), {Which:8,U64:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: float64 into 8-byte: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=16 ptrs=0}), {Which:2,F64:123}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: text into 1 pointer: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=8 ptrs=1}), {Which:13,Text:"hi"}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: data into 1 pointer: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=8 ptrs=1}), {Which:14,Blob:[104,105]}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: list into 1 pointer: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=8 ptrs=1}), {Which:15,F64vec:[123]}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
    pogs_test.go:403: struct into 1 pointer: Insert(0xea26e9973bd6a0d9, capnp.NewStruct(seg, {datasz=8 ptrs=1}), {Which:32,Planebase:{}}) = pogs: insert @0xea26e9973bd6a0d9: unexpected EOF; want nil
=== RUN   TestExtract_StringBytes
--- FAIL: TestExtract_StringBytes (0.00s)
    pogs_test.go:432: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:436: Extract() produced {}; want {Which:13,Text:[72,101,108,108,111,44,32,87,111,114,108,100,33]}
=== RUN   TestExtract_StringListBytes
--- FAIL: TestExtract_StringListBytes (0.00s)
    pogs_test.go:455: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:459: Extract() produced {}; want {Which:41,Textvec:[[72,111,108,109,101,115],[87,97,116,115,111,110]]}
=== RUN   TestInsert_StringBytes
--- FAIL: TestInsert_StringBytes (0.00s)
    pogs_test.go:475: Insert({Which:13,Text:[72,101,108,108,111,44,32,87,111,114,108,100,33]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:481: Insert({Which:13,Text:[72,101,108,108,111,44,32,87,111,114,108,100,33]}) produced 
=== RUN   TestInsert_StringListBytes
--- FAIL: TestInsert_StringListBytes (0.00s)
    pogs_test.go:497: Insert({Which:41,Textvec:[[72,111,108,109,101,115],[87,97,116,115,111,110]]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:503: Insert({Which:41,Textvec:[[72,111,108,109,101,115],[87,97,116,115,111,110]]}) produced 
=== RUN   TestExtract_StructNoPtr
--- FAIL: TestExtract_StructNoPtr (0.00s)
    pogs_test.go:530: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:534: Extract() produced {}; want {Which:32,Planebase:{Name:"foo"}}
=== RUN   TestExtract_StructListNoPtr
--- FAIL: TestExtract_StructListNoPtr (0.00s)
    pogs_test.go:555: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:561: Extract() produced {}; want {Which:25,Zvec:[{Which:4,I64:123}]}
=== RUN   TestExtract_GroupNoPtr
--- FAIL: TestExtract_GroupNoPtr (0.00s)
    pogs_test.go:580: Extract() error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:584: Extract() produced {}; want {Which:42,Grp:{First:123,Second:456}}
=== RUN   TestInsert_StructNoPtr
--- FAIL: TestInsert_StructNoPtr (0.00s)
    pogs_test.go:600: Insert({Which:32,Planebase:{Name:"foo"}}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:606: Insert({Which:32,Planebase:{Name:"foo"}}) produced 
=== RUN   TestInsert_StructListNoPtr
--- FAIL: TestInsert_StructListNoPtr (0.00s)
    pogs_test.go:624: Insert({Which:25,Zvec:[{Which:4,I64:123}]}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:632: Insert({Which:25,Zvec:[{Which:4,I64:123}]}) produced 
=== RUN   TestInsert_GroupNoPtr
--- FAIL: TestInsert_GroupNoPtr (0.00s)
    pogs_test.go:648: Insert({Which:42,Grp:{First:123,Second:456}}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:654: Insert({Which:42,Grp:{First:123,Second:456}}) produced 
=== RUN   TestExtract_Tags
--- FAIL: TestExtract_Tags (0.00s)
    pogs_test.go:705: renamed field: Extract error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:708: renamed field: Extract produced {}; want {Which:2,Float64:3.5}
    pogs_test.go:705: omitted field: Extract error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:708: omitted field: Extract produced {}; want {Which:4}
    pogs_test.go:705: field with overlapping name: Extract error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:708: field with overlapping name: Extract produced {}; want {Which:12,U8:true}
=== RUN   TestInsert_Tags
--- FAIL: TestInsert_Tags (0.00s)
    pogs_test.go:748: renamed field: Insert({Which:2,Float64:3.5}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:753: renamed field: Insert({Which:2,Float64:3.5}) produced 
    pogs_test.go:748: omitted field: Insert({Which:4,I64:42}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:753: omitted field: Insert({Which:4,I64:42}) produced 
    pogs_test.go:748: field with overlapping name: Insert({Which:12,U8:true}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:753: field with overlapping name: Insert({Which:12,U8:true}) produced 
=== RUN   TestExtract_WhichTag
--- FAIL: TestExtract_WhichTag (0.00s)
    pogs_test.go:777: Extract error: pogs: extract @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:780: Extract produced {}; want {Bool:true}
=== RUN   TestExtract_WhichTagMismatch
--- PASS: TestExtract_WhichTagMismatch (0.00s)
=== RUN   TestInsert_WhichTag
--- FAIL: TestInsert_WhichTag (0.00s)
    pogs_test.go:814: Insert({Bool:true}) error: pogs: insert @0xea26e9973bd6a0d9: unexpected EOF
    pogs_test.go:820: Insert({Bool:true}) produced 
=== RUN   TestExtraFields
--- PASS: TestExtraFields (0.00s)
=== RUN   ExampleExtract
--- FAIL: ExampleExtract (0.00s)
panic: pogs: extract @0x8100cc88d7d4d47c: unexpected EOF [recovered]
    panic: pogs: extract @0x8100cc88d7d4d47c: unexpected EOF

goroutine 1 [running]:
panic(0x172be0, 0xc42020e120)
    /usr/local/go/src/runtime/panic.go:500 +0x1a1
testing.runExample.func2(0xecf52be3b, 0xc40701daf1, 0x2797e0, 0xc42002a050, 0xc42002a010, 0xc4201f2c00, 0x1aa5af, 0xe, 0x1c5440, 0x1ae93c, ...)
    /usr/local/go/src/testing/example.go:109 +0x392
panic(0x172be0, 0xc42020e120)
    /usr/local/go/src/runtime/panic.go:458 +0x243
zombiezen.com/go/capnproto2/pogs_test.ExampleExtract()
    /Users/jaten/src/zombiezen.com/go/capnproto2/pogs/example_test.go:45 +0x2ef
testing.runExample(0x1aa5af, 0xe, 0x1c5440, 0x1ae93c, 0x1f, 0x0, 0x0)
    /usr/local/go/src/testing/example.go:114 +0x1a0
testing.RunExamples(0x1c4d08, 0x272e80, 0x2, 0x2, 0xe200)
    /usr/local/go/src/testing/example.go:38 +0x15e
testing.(*M).Run(0xc420037ee8, 0x1)
    /usr/local/go/src/testing/testing.go:744 +0xbd
main.main()
    zombiezen.com/go/capnproto2/pogs/_test/_testmain.go:122 +0xc6
exit status 2
FAIL    zombiezen.com/go/capnproto2/pogs    1.255s
jaten@jatens-MacBook-Pro ~/src/zombiezen.com/go/capnproto2/pogs (master) $

[zombiezen]

Woah. Legit failure and seems to be Go 1.7-related: I can repro on linux/amd64 with Go 1.7 but not Go 1.6. Investigating.

[zombiezen]

Fix in progress, but here's the issue (and I think it's also present in v1, but haven't confirmed yet): the schema data that is stored in the generated code is packed+zlib compressed. In Go 1.7, the flate reader now returns an error along with the data of the last read. The packed decompressor does not handle this case and drops the tail end of the bytes. I'm rewriting the decompressor to handle this better.

[glycerine]

oh interesting. the release notes mention something about this...

Lastly, there is a minor change to the decompressor's implementation of io.Reader. In previous versions, the decompressor deferred reporting io.EOF until exactly no more bytes could be read. Now, it reports io.EOF more eagerly when reading the last set of bytes.
-- https://golang.org/doc/go1.7

[zombiezen]

I've rewritten the decompressor now. You may want to backport it to go-capnproto v1, as I ended up improving performance by 3x while doing this.

[glycerine]

@zombiezen excellent.