Add unit test for PDF MIME Type

README.md

@@ -13,3 +13,4 @@ List of formats read:
 | RTF | X | text/rtf |
 | ODT | X | application/vnd.oasis.opendocument.text |
 | DOCX  | X  | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
+| PDF | X | application/pdf "

opencrucible.go

@@ -129,4 +129,5 @@ func readPdf(path string) (string, error) {
     newBytes := []byte(" ")
 	replacedBytes := bytes.Replace(buf.Bytes(), oldBytes, newBytes, -1)
 	return strings.Trim(string(replacedBytes), " "), nil
-}
+}
+

opencrucible_test.go

@@ -129,3 +129,19 @@ func TestPDFFileParser(t *testing.T) {
 		t.Errorf("got %q, wanted %q", got, want)
 	}
 }
+
+func TestPDFDetect(t *testing.T) {
+	pdf, err := os.ReadFile(filepath.Join("test_file","test_file_pdf_1000.pdf"))
+	if err != nil {
+		t.Errorf("error loading file \n %s", err)
+	}
+	got, _, err := DetectFileTypeMIME(pdf)
+	if err != nil {
+		t.Errorf("unable to detect file \n %s", err)
+	}
+	want := "application/pdf"
+	t.Logf("Parsed: %s", got)
+	if got != want {
+		t.Errorf("got %q, wanted %q", got, want)
+	}
+}