Port the rest of the types package tests

[sogko]

Details

Currently the types branch includes some fixes to bugs where introspection does not return the right output when queried (Some of the fixes I've yet to commit to the branch yet).

This PR would not be ready for merge until all tests in the task lists are completed and all tests have passed.

Task list

• scalars_serialization tests
• definition tests
• enumType tests
• introspection tests
• validation tests
• code cleanup

Test

$ go build && go test ./...
ok      github.com/chris-ramon/graphql-go   0.014s
?       github.com/chris-ramon/graphql-go/errors    [no test files]
ok      github.com/chris-ramon/graphql-go/executor  0.110s
?       github.com/chris-ramon/graphql-go/language/ast  [no test files]
?       github.com/chris-ramon/graphql-go/language/kinds    [no test files]
ok      github.com/chris-ramon/graphql-go/language/lexer    0.011s
?       github.com/chris-ramon/graphql-go/language/location [no test files]
ok      github.com/chris-ramon/graphql-go/language/parser   0.039s
ok      github.com/chris-ramon/graphql-go/language/printer  0.055s
?       github.com/chris-ramon/graphql-go/language/source   [no test files]
ok      github.com/chris-ramon/graphql-go/language/visitor  0.017s
ok      github.com/chris-ramon/graphql-go/testutil  0.035s
ok      github.com/chris-ramon/graphql-go/types 0.098s
?       github.com/chris-ramon/graphql-go/validator [no test files]

[sogko]

Completed porting tests for types. Adding tests cases did exposed more missing implementation and bugs.

Notes

• This might conflict with PR Renames package types to gqltypes #16, a lot of changes were made to types package directory.
• TODO in a separate PR: Consolidate a couple of common utility/helpers e.g executor.isNullish()
• Added a test util to check if a map[string]interface{} is a subset of another map (testutil.ContainSubset()). Needed for introspection_test.go
• Added a test util to check if a []interface{} is a subset of another slice (testutil.ContainSubsetSlice()). Needed for introspection_test.go

/cc @chris-ramon

[chris-ramon]

Thanks a lot! for ur work on this one 🌟 finally landed 😄

[sogko]

Haha no problem, was glad to contribute 👍🏻
I just wanted to quickly see a working implementation of graphql for golang as quickly as possible (I was getting kind of jealous that ruby, python, scala etc already have working libraries for graphql)

By the way, I've got a live demo of graphql-go, using relay, graphiql and all that goodness, up and running at http://bit.ly/try-graphql-go
The source is available at https://github.com/sogko/golang-graphql-playground

Cheers!

[chris-ramon]

That is so awesome! 👍 great example! 🚀 , def will take a look closely.