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action_handler_test.go
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action_handler_test.go
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package detour
import (
"context"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/smartystreets/assertions/should"
"github.com/smartystreets/gunit"
)
func TestModelBinderFixture(t *testing.T) {
gunit.Run(new(ModelBinderFixture), t)
}
type ModelBinderFixture struct {
*gunit.Fixture
controller *Controller
request *http.Request
response *httptest.ResponseRecorder
}
func (this *ModelBinderFixture) Setup() {
this.controller = &Controller{}
this.request = httptest.NewRequest("GET", "/?binding=BindingInputModel", nil)
this.response = httptest.NewRecorder()
}
func (this *ModelBinderFixture) TestFromFactory_IncorrectInputModelType__Panic() {
wrongInputModelType := func() interface{} { return "wrong type" }
action := func() { NewFromFactory(wrongInputModelType, this.controller.HandleBasicInputModel) }
this.So(action, should.PanicWith,
"Controller requires input model of type: [*detour.BlankBasicInputModel] "+
"Factory function provided input model of type: [string]")
}
func (this *ModelBinderFixture) TestFromFactory_ControllerWithNoInputModel__Panic() {
action := func() { NewFromFactory(NewBlankBasicInputModel, this.controller.HandleNoInputModel) }
this.So(action, should.Panic)
}
func (this *ModelBinderFixture) TestFromFactory_BasicInputModelProvidedToApplication__HTTP200() {
binder := NewFromFactory(NewBlankBasicInputModel, this.controller.HandleBasicInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusOK)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: BasicInputModel")
}
func (this *ModelBinderFixture) TestNoInputModelProvidedToApplication__HTTP200() {
binder := New(this.controller.HandleNoInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusOK)
}
func (this *ModelBinderFixture) TestRequestContextIsPopulatedWhenOnInputModel_HTTP200() {
binder := New(this.controller.HandleInputModelWithContextField)
binder.ServeHTTP(this.response, this.request.WithContext(context.WithValue(context.Background(), "Key", "ContextInputModel")))
this.So(this.response.Code, should.Equal, http.StatusOK)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: ContextInputModel")
}
func (this *ModelBinderFixture) TestBindsModelForApplication__HTTP200() {
binder := New(this.controller.HandleBindingInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusOK)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: BindingInputModel")
}
func (this *ModelBinderFixture) TestBindsFormParseFails__HTTP400() {
this.request = httptest.NewRequest("GET", "/?asdf=%%%%%", nil)
binder := New(this.controller.HandleBindingInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusBadRequest)
}
func (this *ModelBinderFixture) TestBindsModelAndHandlesError__HTTP400_JSONResponse() {
binder := New(this.controller.HandleBindingFailsInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 400)
this.So(this.response.Result().Header.Get(contentTypeHeader), should.Equal, jsonContentType)
this.So(this.response.Body.String(), should.EqualTrimSpace, `[{"Problem":"BindingFailsInputModel"}]`)
}
func (this *ModelBinderFixture) TestBindModelError__CustomStatusCode() {
binder := New(this.controller.HandleBindingFailsCustomStatusCodeInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusTeapot)
}
func (this *ModelBinderFixture) TestBindsModelAndHandlesNilErrors() {
binder := New(this.controller.HandleBindingEmptyErrorsInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
}
func (this *ModelBinderFixture) TestBindsModelEmptyValidationErrors__HTTP200() {
binder := New(this.controller.HandleBindingSucceedsInputModelWithEmptyDiagnosticErrors)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: BindingEmptyDiagnosticErrorsInputModel")
}
func (this *ModelBinderFixture) TestBindFromJSONRequiresInputModelToImplementJSONMarkerInterface() {
this.request = httptest.NewRequest("POST", "/", strings.NewReader(`{"content": "Hello, World!"}`))
this.request.Header.Set("Content-Type", "application/json")
binder := New(this.controller.HandleFailedBindingFromJSON)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.NotContainSubstring, "Hello, World!")
}
func (this *ModelBinderFixture) TestBindFromJSONPost() {
this.request = httptest.NewRequest("POST", "/", strings.NewReader(`{"content": "Hello, World!"}`))
this.request.Header.Set("Content-Type", "application/json")
this.request.Header.Set("binding", " (from the header)")
binder := New(this.controller.HandleBindingFromJSON)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.ContainSubstring, "Hello, World! (from the header)")
}
func (this *ModelBinderFixture) TestBindFromPost_UnsupportedMediaType() {
this.request = httptest.NewRequest("POST", "/", strings.NewReader(`{"content": "This will not be included."}`))
this.request.Header.Set("Content-Type", "application/xml")
this.request.Header.Set("binding", "(there should be nothing before this parenthetical header message)")
binder := New(this.controller.HandleBindingFromJSON)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 415)
this.So(this.response.Body.String(), should.Equal, "Unsupported Media Type")
}
func (this *ModelBinderFixture) TestBindFromJSONDisabled_JSONBodyIgnored() {
this.request = httptest.NewRequest("POST", "/", strings.NewReader(`{"content": "This will not be included."}`))
this.request.Header.Set("Content-Type", "application/json")
this.request.Header.Set("binding", "(there should be nothing before this parenthetical header message)")
binder := New(this.controller.HandleBindingFromJSONDisabled)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.Equal, "Just handled: (there should be nothing before this parenthetical header message)\n")
}
func (this *ModelBinderFixture) TestBindFromJSON_NotPUTorPOST_MethodNotAllowed() {
this.request = httptest.NewRequest("GET", "/", strings.NewReader(`{"content": "This will not be included."}`))
this.request.Header.Set("Content-Type", "application/json")
this.request.Header.Set("binding", "(there should be nothing before this parenthetical header message)")
binder := New(this.controller.HandleBindingFromJSON)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 405)
this.So(this.response.Body.String(), should.Equal, "Method Not Allowed")
}
func (this *ModelBinderFixture) TestBindFromJSONPut() {
this.request = httptest.NewRequest("PUT", "/", strings.NewReader(`{"content": "Hello, World!"}`))
this.request.Header.Set("Content-Type", "application/json")
binder := New(this.controller.HandleBindingFromJSON)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.ContainSubstring, "Hello, World!")
}
func (this *ModelBinderFixture) TestBindFromJSON_Malformed() {
this.request = httptest.NewRequest("PUT", "/", strings.NewReader(`{I can haz JSONs}`))
this.request.Header.Set("Content-Type", "application/json")
binder := New(this.controller.HandleBindingFromJSON)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 400)
this.So(this.response.Body.String(), should.ContainSubstring, "invalid character")
}
func (this *ModelBinderFixture) TestSanitizesModelIfAvailable() {
this.request.Header.Set("binding", "hello")
sanitizer := New(this.controller.HandleSanitizingInputModel)
sanitizer.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusOK)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: SANITIZINGINPUTMODEL")
}
func (this *ModelBinderFixture) TestValidatesModelForApplication__HTTP200() {
binder := New(this.controller.HandleValidatingInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusOK)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: ValidatingInputModel")
}
func (this *ModelBinderFixture) TestValidatesModelAndHandlesError__HTTP422() {
binder := New(this.controller.HandleValidatingFailsInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 422)
this.So(this.response.Result().Header.Get(contentTypeHeader), should.Equal, jsonContentType)
this.So(this.response.Body.String(), should.EqualTrimSpace, `[{"Problem":"ValidatingFailsInputModel"}]`)
}
func (this *ModelBinderFixture) TestValidatesModelEmptyValidationErrors__HTTP200() {
binder := New(this.controller.HandleValidatingEmptyErrors)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: ValidatingEmptyErrorsInputModel")
}
func (this *ModelBinderFixture) TestValidatesModelEmptyDiagnosticErrors__HTTP200() {
binder := New(this.controller.HandleValidatingEmptyDiagnosticErrors)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: ValidatingEmptyDiagnosticErrorsInputModel")
}
func (this *ModelBinderFixture) TestValidatesModelCustomStatusCodeError__HTTP418() {
binder := New(this.controller.HandleValidatingFailsWithCustomStatusCode)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusTeapot)
}
func (this *ModelBinderFixture) TestFinalErrorCondition__HTTP500() {
action := New(this.controller.HandleFinalError)
action.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 500)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Internal Server Error")
}
func (this *ModelBinderFixture) TestNoFinalErrorCondition__HTTP200() {
action := New(this.controller.HandleNoFinalError)
action.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
}
func (this *ModelBinderFixture) TestNilResponseFromApplication__HTTP200() {
binder := New(this.controller.HandleNilResponseInputModel)
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, http.StatusOK)
this.So(this.response.Body.String(), should.BeBlank)
}
////////////////////////////////////////////////////////////
func (this *ModelBinderFixture) TestModelParsingFromCallback() {
this.assertPanicWith(0, "The action provided is not a func.")
this.assertPanicWith(func(int) Renderer { return nil }, "The first argument to the controller callback must be a pointer type.")
this.assertPanicWith(func(*int, *int) Renderer { return nil }, "The callback provided must have no more than one argument.")
this.assertPanicWith(func(*BlankBasicInputModel) {}, "The return type must implement the detour.Renderer interface.")
this.assertDoesNOTPanic(func(*BlankBasicInputModel) Renderer { return nil })
this.assertDoesNOTPanic(func() Renderer { return nil })
}
func (this *ModelBinderFixture) assertPanicWith(callback interface{}, content string) {
this.So(func() { identifyInputModelArgumentType(callback) }, should.PanicWith, content)
}
func (this *ModelBinderFixture) assertDoesNOTPanic(callback interface{}) {
this.So(func() { identifyInputModelArgumentType(callback) }, should.NotPanic)
}
func (this *ModelBinderFixture) TestModelBinding() {
binder := New(func(input *BindingInputModel) Renderer {
return &ControllerResponse{Body: input.Content}
})
binder.ServeHTTP(this.response, this.request)
this.So(this.response.Code, should.Equal, 200)
this.So(this.response.Body.String(), should.EqualTrimSpace, "Just handled: BindingInputModel")
}