[Go] "go test" does not pass

This seems to be a problem with some code that wasn’t updated with ATN serialization/deserialization.

Unfortunately, I don’t think the tests are performed in CI builds. cd runtime/Go/antlr4; go test. Honestly, these Go-specific tests probably should not even go here, but it is what it is, and I’m continuing the tradition.

ken@DESKTOP-DL44R7B:/mnt/c/msys64/home/Kenne/current/antlr4/runtime/Go/antlr$ go test
panic: Could not deserialize ATN with version 3 (expected 4).

goroutine 1 [running]:
github.com/antlr/antlr4/runtime/Go/antlr.(*ATNDeserializer).checkVersion(0x678980)
	/mnt/c/msys64/home/Kenne/current/antlr4/runtime/Go/antlr/atn_deserializer.go:87 +0xdd
github.com/antlr/antlr4/runtime/Go/antlr.(*ATNDeserializer).DeserializeFromUInt16(0xc00011a2a0, {0x678980, 0x7fffffff, 0x10})
	/mnt/c/msys64/home/Kenne/current/antlr4/runtime/Go/antlr/atn_deserializer.go:52 +0x7d
github.com/antlr/antlr4/runtime/Go/antlr.init()
	/mnt/c/msys64/home/Kenne/current/antlr4/runtime/Go/antlr/testing_lexer_b_test.go:44 +0x672
exit status 2
FAIL    github.com/antlr/antlr4/runtime/Go/antlr        0.005s

I’ll fix the code. Blocked on another Go PR because of this.

[jimidle]

The go.mod file is updated and go.sum is now included in the repo, as it should be.

I think that the pure go runtime tests will be useful, but they are not very substantial as they stand. they do not have to reside in the main package, they can be in a test package.

[jimidle]

@parrt This can be closed now. The go test does pass, even if the tests don’t really do that much and probably should be expanded greatly.

Go pretty much requires that _test versions of a source reside along side the source they are testing. We could make external tests work, but that would not be the go ‘way’.