add tests

Author: mfbmina

hello/go.mod

@@ -5,6 +5,10 @@ go 1.20
 require github.com/Kong/go-pdk v0.8.0
 
 require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/testify v1.8.4 // indirect
 	github.com/ugorji/go/codec v1.2.1 // indirect
 	google.golang.org/protobuf v1.25.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

hello/go.sum

@@ -5,6 +5,8 @@ github.com/Kong/go-pdk v0.8.0/go.mod h1:D6tpamZZ1hZp3PEksGCbvlS+g0J2RhGTw7eZW3D7
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@@ -24,8 +26,11 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/ugorji/go v1.2.1/go.mod h1:cSVypSfTLm2o9fKxXvQgn3rMmkPXovcWor6Qn5tbFmI=
 github.com/ugorji/go/codec v1.2.1 h1:/TRfW3XKkvWvmAYyCUaQlhoCDGjcvNR8xVVA/l5p/jQ=
 github.com/ugorji/go/codec v1.2.1/go.mod h1:s/WxCRi46t8rA+fowL40EnmD7ec0XhR7ZypxeBNdzsM=
@@ -68,6 +73,9 @@ google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

hello/main.go

@@ -1,4 +1,5 @@
 /*
+	Example copied from https://github.com/Kong/go-plugins/blob/master/go-hello.go
 	A "hello world" plugin in Go,
 	which reads a request header and sets a response header.
 */

hello/main_test.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/Kong/go-pdk/test"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPluginWithoutConfig(t *testing.T) {
+	env, err := test.New(t, test.Request{
+		Method:  "GET",
+		Url:     "http://example.com?q=search&x=9",
+		Headers: map[string][]string{"host": {"localhost"}},
+	})
+	assert.NoError(t, err)
+
+	env.DoHttps(&Config{})
+	assert.Equal(t, 200, env.ClientRes.Status)
+	assert.Equal(t, "Go says hello to localhost", env.ClientRes.Headers.Get("x-hello-from-go"))
+}
+
+func TestPluginWithConfig(t *testing.T) {
+	env, err := test.New(t, test.Request{
+		Method:  "GET",
+		Url:     "http://example.com?q=search&x=9",
+		Headers: map[string][]string{"host": {"localhost"}},
+	})
+	assert.NoError(t, err)
+
+	env.DoHttps(&Config{Message: "nice to meet you"})
+	assert.Equal(t, 200, env.ClientRes.Status)
+	assert.Equal(t, "Go says nice to meet you to localhost", env.ClientRes.Headers.Get("x-hello-from-go"))
+}