Fix getFileType for dicom images (#3610)

packages/@uppy/utils/src/getFileType.test.js

@@ -32,6 +32,10 @@ describe('getFileType', () => {
       name: 'bar.mkv',
       data: 'sdfsfhfh329fhwihs',
     }
+    const fileDicom = {
+      name: 'bar.dicom',
+      data: 'sdfsfhfh329fhwihs',
+    }
     const toUpper = (file) => ({ ...file, name: file.name.toUpperCase() })
     expect(getFileType(fileMP3)).toEqual('audio/mp3')
     expect(getFileType(toUpper(fileMP3))).toEqual('audio/mp3')
@@ -39,6 +43,8 @@ describe('getFileType', () => {
     expect(getFileType(toUpper(fileYAML))).toEqual('text/yaml')
     expect(getFileType(fileMKV)).toEqual('video/x-matroska')
     expect(getFileType(toUpper(fileMKV))).toEqual('video/x-matroska')
+    expect(getFileType(fileDicom)).toEqual('application/dicom')
+    expect(getFileType(toUpper(fileDicom))).toEqual('application/dicom')
   })
 
   it('should fail gracefully if unable to detect', () => {

packages/@uppy/utils/src/mimeTypes.js

@@ -23,6 +23,7 @@ module.exports = {
   mks: 'video/x-matroska',
   mkv: 'video/x-matroska',
   mov: 'video/quicktime',
+  dicom: 'application/dicom',
   doc: 'application/msword',
   docm: 'application/vnd.ms-word.document.macroenabled.12',
   docx: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',