refactor(gqlclient): improve test suite, allow structs for variables

[steebchen]

No description provided.

[github-actions]

golint

gqlclient.go:8:1: comment on exported type Client should be of the form "Client ..." (with optional leading article)
structs/structs.go:10:1: exported function Unpack should have comment or be unexported
structs/structs.go:26:1: exported function StructToMap should have comment or be unexported

[github-actions]

go fmt

./structs/structs_test.go

diff -u ./structs/structs_test.go.orig ./structs/structs_test.go
--- ./structs/structs_test.go.orig	2019-06-04 15:04:26.968509155 +0000
+++ ./structs/structs_test.go	2019-06-04 15:04:26.968509155 +0000
@@ -19,7 +19,7 @@
 		{
 			name: "normal struct",
 			args: &args{
-				in: struct{
+				in: struct {
 					ID string
 				}{
 					ID: "123",
@@ -32,7 +32,7 @@
 		{
 			name: "allow struct tags",
 			args: &args{
-				in: struct{
+				in: struct {
 					ID string `json:"my_id"`
 				}{
 					ID: "123",

[github-actions]

golint

gqlclient.go:8:1: comment on exported type Client should be of the form "Client ..." (with optional leading article)
structs/structs.go:10:1: exported function Unpack should have comment or be unexported
structs/structs.go:26:1: exported function StructToMap should have comment or be unexported