Adding upstream version 1.0.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

multipart_test.go

@@ -0,0 +1,154 @@
+// Copyright 2014 Martini Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package binding
+
+import (
+	"bytes"
+	"fmt"
+	"mime/multipart"
+	"net/http"
+	"net/http/httptest"
+	"strconv"
+	"testing"
+
+	chi "github.com/go-chi/chi/v5"
+	"github.com/stretchr/testify/assert"
+)
+
+var multipartFormTestCases = []multipartFormTestCase{
+	{
+		description:      "Happy multipart form path",
+		shouldSucceed:    true,
+		inputAndExpected: BlogPost{Post: Post{Title: "Glorious Post Title"}, Id: 1, Author: Person{Name: "Matt Holt"}},
+	},
+	{
+		description:         "FormValue called before req.MultipartReader(); see https://github.com/martini-contrib/csrf/issues/6",
+		shouldSucceed:       true,
+		callFormValueBefore: true,
+		inputAndExpected:    BlogPost{Post: Post{Title: "Glorious Post Title"}, Id: 1, Author: Person{Name: "Matt Holt"}},
+	},
+	{
+		description:      "Empty payload",
+		shouldSucceed:    false,
+		inputAndExpected: BlogPost{},
+	},
+	{
+		description:      "Missing required field (Id)",
+		shouldSucceed:    false,
+		inputAndExpected: BlogPost{Post: Post{Title: "Glorious Post Title"}, Author: Person{Name: "Matt Holt"}},
+	},
+	{
+		description:      "Required embedded struct field not specified",
+		shouldSucceed:    false,
+		inputAndExpected: BlogPost{Id: 1, Author: Person{Name: "Matt Holt"}},
+	},
+	{
+		description:      "Required nested struct field not specified",
+		shouldSucceed:    false,
+		inputAndExpected: BlogPost{Post: Post{Title: "Glorious Post Title"}, Id: 1},
+	},
+	{
+		description:      "Multiple values",
+		shouldSucceed:    true,
+		inputAndExpected: BlogPost{Post: Post{Title: "Glorious Post Title"}, Id: 1, Author: Person{Name: "Matt Holt"}, Ratings: []int{3, 5, 4}},
+	},
+	{
+		description:     "Bad multipart encoding",
+		shouldSucceed:   false,
+		malformEncoding: true,
+	},
+}
+
+func Test_MultipartForm(t *testing.T) {
+	for _, testCase := range multipartFormTestCases {
+		performMultipartFormTest(t, MultipartForm, testCase)
+	}
+}
+
+func performMultipartFormTest(t *testing.T, binder handlerFunc, testCase multipartFormTestCase) {
+	httpRecorder := httptest.NewRecorder()
+	m := chi.NewRouter()
+
+	m.Post(testRoute, func(_ http.ResponseWriter, req *http.Request) {
+		var actual BlogPost
+		errs := binder(req, &actual)
+		if testCase.shouldSucceed {
+			assert.Empty(t, errs)
+		} else if !testCase.shouldSucceed {
+			assert.NotEmpty(t, errs)
+		}
+		assert.EqualValues(t, fmt.Sprintf("%+v", testCase.inputAndExpected), fmt.Sprintf("%+v", actual))
+	})
+
+	multipartPayload, mpWriter := makeMultipartPayload(testCase)
+
+	req, err := http.NewRequest("POST", testRoute, multipartPayload)
+	if err != nil {
+		panic(err)
+	}
+
+	req.Header.Add("Content-Type", mpWriter.FormDataContentType())
+
+	err = mpWriter.Close()
+	if err != nil {
+		panic(err)
+	}
+
+	if testCase.callFormValueBefore {
+		req.FormValue("foo")
+	}
+
+	m.ServeHTTP(httpRecorder, req)
+
+	switch httpRecorder.Code {
+	case http.StatusNotFound:
+		panic("Routing is messed up in test fixture (got 404): check methods and paths")
+	case http.StatusInternalServerError:
+		panic("Something bad happened on '" + testCase.description + "'")
+	}
+}
+
+// Writes the input from a test case into a buffer using the multipart writer.
+func makeMultipartPayload(testCase multipartFormTestCase) (*bytes.Buffer, *multipart.Writer) {
+	body := &bytes.Buffer{}
+	writer := multipart.NewWriter(body)
+	if testCase.malformEncoding {
+		// TODO: Break the multipart form parser which is apparently impervious!!
+		// (Get it to return an error. Trying to get 100% test coverage.)
+		body.Write([]byte(`--` + writer.Boundary() + `\nContent-Disposition: form-data; name="foo"\n\n--` + writer.Boundary() + `--`))
+		return body, writer
+	}
+	_ = writer.WriteField("title", testCase.inputAndExpected.Title)
+	_ = writer.WriteField("content", testCase.inputAndExpected.Content)
+	_ = writer.WriteField("id", strconv.Itoa(testCase.inputAndExpected.Id))
+	_ = writer.WriteField("ignored", testCase.inputAndExpected.Ignored)
+	for _, value := range testCase.inputAndExpected.Ratings {
+		_ = writer.WriteField("rating", strconv.Itoa(value))
+	}
+	_ = writer.WriteField("name", testCase.inputAndExpected.Author.Name)
+	_ = writer.WriteField("email", testCase.inputAndExpected.Author.Email)
+	return body, writer
+}
+
+type (
+	multipartFormTestCase struct {
+		description         string
+		shouldSucceed       bool
+		inputAndExpected    BlogPost
+		malformEncoding     bool
+		callFormValueBefore bool
+	}
+)