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-rw-r--r--testrig/util.go64
1 files changed, 64 insertions, 0 deletions
diff --git a/testrig/util.go b/testrig/util.go
new file mode 100644
index 000000000..96a979342
--- /dev/null
+++ b/testrig/util.go
@@ -0,0 +1,64 @@
+/*
+ GoToSocial
+ Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package testrig
+
+import (
+ "bytes"
+ "io"
+ "mime/multipart"
+ "os"
+)
+
+// CreateMultipartFormData is a handy function for taking a fieldname and a filename, and creating a multipart form bytes buffer
+// with the file contents set in the given fieldname. The extraFields param can be used to add extra FormFields to the request, as necessary.
+// The returned bytes.Buffer b can be used like so:
+// httptest.NewRequest(http.MethodPost, "https://example.org/whateverpath", bytes.NewReader(b.Bytes()))
+// The returned *multipart.Writer w can be used to set the content type of the request, like so:
+// req.Header.Set("Content-Type", w.FormDataContentType())
+func CreateMultipartFormData(fieldName string, fileName string, extraFields map[string]string) (bytes.Buffer, *multipart.Writer, error) {
+ var b bytes.Buffer
+ var err error
+ w := multipart.NewWriter(&b)
+ var fw io.Writer
+ file, err := os.Open(fileName)
+ if err != nil {
+ return b, nil, err
+ }
+ if fw, err = w.CreateFormFile(fieldName, file.Name()); err != nil {
+ return b, nil, err
+ }
+ if _, err = io.Copy(fw, file); err != nil {
+ return b, nil, err
+ }
+
+ for k, v := range extraFields {
+ f, err := w.CreateFormField(k)
+ if err != nil {
+ return b, nil, err
+ }
+ if _, err := io.Copy(f, bytes.NewBufferString(v)); err != nil {
+ return b, nil, err
+ }
+ }
+
+ if err := w.Close(); err != nil {
+ return b, nil, err
+ }
+ return b, w, nil
+}