package mimeparse import ( "bytes" "encoding/json" "fmt" "io" "strconv" "strings" "testing" "time" ) var p *Parser func init() { } func TestInject(t *testing.T) { p = NewMimeParser() var b bytes.Buffer // it should read from both slices // as if it's a continuous stream p.inject([]byte("abcd"), []byte("efgh"), []byte("ijkl")) for i := 0; i < 12; i++ { b.WriteByte(p.ch) if p.pos == 3 && p.msgPos < 4 { if c := p.peek(); c != 101 { t.Error("next() expecting e, got:", string(c)) } } p.next() if p.ch == 0 { break } } if b.String() != "abcdefghijkl" { t.Error("expecting abcdefghijkl, got:", b.String()) } } func TestMimeType(t *testing.T) { p = NewMimeParser() if isTokenSpecial['-'] { t.Error("- should not be in the set") } p.inject([]byte("text/plain; charset=us-ascii")) str, err := p.mimeType() if err != nil { t.Error(err) } if str != "text" { t.Error("mime type should be: text") } } func TestMimeContentType(t *testing.T) { p = NewMimeParser() go func() { <-p.consumed p.gotNewSlice <- false }() // what happens if we call Charset with empty content type? empty := contentType{} blank := empty.Charset() if blank != "" { t.Error("expecting charset to be blank") } subject := "text/plain; charset=\"us-aScii\"; moo; boundary=\"foo\"" p.inject([]byte(subject)) contentType, err := p.contentType() if err != nil { t.Error(err) } if charset := contentType.Charset(); charset != "US-ASCII" { t.Error("charset is not US-ASCII") } // test the stringer (note it will canonicalize us-aScii to US-ASCII subject = strings.Replace(subject, "us-aScii", "US-ASCII", 1) if ct := contentType.String(); contentType.String() != subject { t.Error("\n[" + ct + "]\ndoes not equal\n[" + subject + "]") } // what happens if we don't use quotes for the param? subject = "text/plain; charset=us-aScii; moo; boundary=\"foo\"" p.inject([]byte(subject)) contentType, err = p.contentType() if err != nil { t.Error(err) } if contentType.subType != "plain" { t.Error("contentType.subType expecting 'plain', got:", contentType.subType) } if contentType.superType != "text" { t.Error("contentType.subType expecting 'text', got:", contentType.superType) } } func TestEmailHeader(t *testing.T) { p = NewMimeParser() in := `Wong ignore me From: Al Gore To: White House Transportation Coordinator Subject: [Fwd: Map of Argentina with Description] MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; s=ncr424; d=reliancegeneral.co.in; h=List-Unsubscribe:MIME-Version:From:To:Reply-To:Date:Subject:Content-Type:Content-Transfer-Encoding:Message-ID; i=prospects@prospects.reliancegeneral.co.in; bh=F4UQPGEkpmh54C7v3DL8mm2db1QhZU4gRHR1jDqffG8=; b=MVltcq6/I9b218a370fuNFLNinR9zQcdBSmzttFkZ7TvV2mOsGrzrwORT8PKYq4KNJNOLBahswXf GwaMjDKT/5TXzegdX/L3f/X4bMAEO1einn+nUkVGLK4zVQus+KGqm4oP7uVXjqp70PWXScyWWkbT 1PGUwRfPd/HTJG5IUqs= Content-Type: multipart/mixed; boundary="D7F------------D7FD5A0B8AB9C65CCDBFA872" This is a multi-part message in MIME format. --D7F------------D7FD5A0B8AB9C65CCDBFA872 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Fred, Fire up Air Force One! We\'re going South! Thanks, Al --D7F------------D7FD5A0B8AB9C65CCDBFA872 This ` p.inject([]byte(in)) h := newPart() err := p.header(h) if err != nil { t.Error(err) } if _, err := p.boundary(h.ContentBoundary); err != nil { t.Error(err) } } func TestBoundary(t *testing.T) { p = NewMimeParser() var err error part := newPart() part.ContentBoundary = "-wololo-" // in the middle of the string test := "The quick brown fo---wololo-\nx jumped over the lazy dog" p.inject([]byte(test)) _, err = p.boundary(part.ContentBoundary) if err != nil && err != io.EOF { t.Error(err) } body := string(test[:p.lastBoundaryPos]) if body != "The quick brown fo" { t.Error("p.lastBoundaryPos seems incorrect") } // at the end (with the -- postfix) p.inject([]byte("The quick brown fox jumped over the lazy dog---wololo---\n")) _, err = p.boundary(part.ContentBoundary) if err != nil && err != io.EOF { t.Error(err) } // the boundary with an additional buffer in between p.inject([]byte("The quick brown fox jumped over the lazy dog"), []byte("this is the middle"), []byte("and thats the end---wololo---\n")) _, err = p.boundary(part.ContentBoundary) if err != nil && err != io.EOF { t.Error(err) } } func TestBoundarySplit(t *testing.T) { p = NewMimeParser() var err error part := newPart() part.ContentBoundary = "-wololo-" // boundary is split over multiple slices p.inject( []byte("The quick brown fox jumped ov---wolo"), []byte("lo---\ner the lazy dog")) _, err = p.boundary(part.ContentBoundary) if err != nil && err != io.EOF { t.Error(err) } body := string([]byte("The quick brown fox jumped ov---wolo")[:p.lastBoundaryPos]) if body != "The quick brown fox jumped ov" { t.Error("p.lastBoundaryPos value seems incorrect") } // boundary has a space, pointer advanced before, and is split over multiple slices part.ContentBoundary = "XXXXboundary text" // 17 chars p.inject( []byte("The quick brown fox jumped ov--X"), []byte("XXXboundary text\ner the lazy dog")) p.next() // here the pointer is advanced before the boundary is searched _, err = p.boundary(part.ContentBoundary) if err != nil && err != io.EOF { t.Error(err) return } } func TestSkip(t *testing.T) { p = NewMimeParser() p.inject( []byte("you cant touch this"), []byte("stop, hammer time")) p.skip(3) if p.pos != 3 { t.Error("position should be 3 after skipping 3 bytes, it is:", p.pos) } p.pos = 0 // after we used next() to advance p.next() p.skip(3) if p.pos != 4 { t.Error("position should be 4 after skipping 3 bytes, it is:", p.pos) } // advance to the 2nd buffer p.pos = 0 p.msgPos = 0 p.skip(19) if p.pos != 0 && p.buf[0] != 's' { t.Error("position should be 0 and p.buf[0] should be 's'") } } func TestHeaderNormalization(t *testing.T) { p = NewMimeParser() p.inject([]byte("ConTent-type")) p.accept.upper = true for { p.acceptHeaderName() p.next() if p.ch == 0 { break } } if p.accept.String() != "Content-Type" { t.Error("header name not normalized, expecting Content-Type") } } func TestMimeContentQuotedParams(t *testing.T) { p = NewMimeParser() // quoted p.inject([]byte("text/plain; charset=\"us-ascii\"")) contentType, err := p.contentType() if err != nil { t.Error(err) } // with whitespace & tab p.inject([]byte("text/plain; charset=\"us-ascii\" \tboundary=\"D7F------------D7FD5A0B8AB9C65CCDBFA872\"")) contentType, err = p.contentType() if err != nil { t.Error(err) } // with comment (ignored) p.inject([]byte("text/plain; charset=\"us-ascii\" (a comment) \tboundary=\"D7F------------D7FD5A0B8AB9C65CCDBFA872\"")) contentType, err = p.contentType() if contentType.subType != "plain" { t.Error("contentType.subType expecting 'plain', got:", contentType.subType) } if contentType.superType != "text" { t.Error("contentType.subType expecting 'text', got:", contentType.superType) } if len(contentType.parameters) != 2 { t.Error("expecting 2 elements in parameters") } else { m := make(map[string]string) for _, e := range contentType.parameters { m[e.name] = e.value } if _, ok := m["charset"]; !ok { t.Error("charset parameter not present") } if b, ok := m["boundary"]; !ok { t.Error("charset parameter not present") } else { if b != "D7F------------D7FD5A0B8AB9C65CCDBFA872" { t.Error("boundary should be: D7F------------D7FD5A0B8AB9C65CCDBFA872") } } } } var email = `From: Al Gore To: White House Transportation Coordinator Subject: [Fwd: Map of Argentina with Description] MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; s=ncr424; d=reliancegeneral.co.in; h=List-Unsubscribe:MIME-Version:From:To:Reply-To:Date:Subject:Content-Type:Content-Transfer-Encoding:Message-ID; i=prospects@prospects.reliancegeneral.co.in; bh=F4UQPGEkpmh54C7v3DL8mm2db1QhZU4gRHR1jDqffG8=; b=MVltcq6/I9b218a370fuNFLNinR9zQcdBSmzttFkZ7TvV2mOsGrzrwORT8PKYq4KNJNOLBahswXf GwaMjDKT/5TXzegdX/L3f/X4bMAEO1einn+nUkVGLK4zVQus+KGqm4oP7uVXjqp70PWXScyWWkbT 1PGUwRfPd/HTJG5IUqs= Content-Type: multipart/mixed; boundary="D7F------------D7FD5A0B8AB9C65CCDBFA872" This is a multi-part message in MIME format. --D7F------------D7FD5A0B8AB9C65CCDBFA872 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Fred, Fire up Air Force One! We're going South! Thanks, Al --D7F------------D7FD5A0B8AB9C65CCDBFA872 Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Return-Path: Received: from mailhost.whitehouse.gov ([192.168.51.200]) by heartbeat.whitehouse.gov (8.8.8/8.8.8) with ESMTP id SAA22453 for ; Mon, 13 Aug 1998 l8:14:23 +1000 Received: from the_big_box.whitehouse.gov ([192.168.51.50]) by mailhost.whitehouse.gov (8.8.8/8.8.7) with ESMTP id RAA20366 for vice-president@whitehouse.gov; Mon, 13 Aug 1998 17:42:41 +1000 Date: Mon, 13 Aug 1998 17:42:41 +1000 Message-Id: <199804130742.RAA20366@mai1host.whitehouse.gov> From: Bill Clinton To: A1 (The Enforcer) Gore Subject: Map of Argentina with Description MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="DC8------------DC8638F443D87A7F0726DEF7" This is a multi-part message in MIME format. --DC8------------DC8638F443D87A7F0726DEF7 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi A1, I finally figured out this MIME thing. Pretty cool. I'll send you some sax music in .au files next week! Anyway, the attached image is really too small to get a good look at Argentina. Try this for a much better map: http://www.1one1yp1anet.com/dest/sam/graphics/map-arg.htm Then again, shouldn't the CIA have something like that? Bill --DC8------------DC8638F443D87A7F0726DEF7 Content-Type: image/gif; name="map_of_Argentina.gif" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="map_of_Argentina.gif" R01GOD1hJQA1AKIAAP/////78P/omn19fQAAAAAAAAAAAAAAACwAAAAAJQA1AAAD7Qi63P5w wEmjBCLrnQnhYCgM1wh+pkgqqeC9XrutmBm7hAK3tP31gFcAiFKVQrGFR6kscnonTe7FAAad GugmRu3CmiBt57fsVq3Y0VFKnpYdxPC6M7Ze4crnnHum4oN6LFJ1bn5NXTN7OF5fQkN5WYow BEN2dkGQGWJtSzqGTICJgnQuTJN/WJsojad9qXMuhIWdjXKjY4tenjo6tjVssk2gaWq3uGNX U6ZGxseyk8SasGw3J9GRzdTQky1iHNvcPNNI4TLeKdfMvy0vMqLrItvuxfDW8ubjueDtJufz 7itICBxISKDBgwgTKjyYAAA7 --DC8------------DC8638F443D87A7F0726DEF7-- --D7F------------D7FD5A0B8AB9C65CCDBFA872-- ` var email2 = `From: abc@def.de Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CBE273.65A0E7AA" To: ghi@def.de This is a multi-part message in MIME format. ------_=_NextPart_001_01CBE273.65A0E7AA Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01CBE273.65A0E7AA" ------_=_NextPart_002_01CBE273.65A0E7AA Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 [base64-content] ------_=_NextPart_002_01CBE273.65A0E7AA Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: base64 [base64-content] ------_=_NextPart_002_01CBE273.65A0E7AA-- ------_=_NextPart_001_01CBE273.65A0E7AA Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_003_01CBE272.13692C80" From: bla@bla.de To: xxx@xxx.de This is a multi-part message in MIME format. ------_=_NextPart_003_01CBE272.13692C80 Content-Type: multipart/alternative; boundary="----_=_NextPart_004_01CBE272.13692C80" ------_=_NextPart_004_01CBE272.13692C80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =20 Viele Gr=FC=DFe ------_=_NextPart_004_01CBE272.13692C80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ... ------_=_NextPart_004_01CBE272.13692C80-- ------_=_NextPart_003_01CBE272.13692C80 Content-Type: application/x-zip-compressed; name="abc.zip" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="abc.zip" [base64-content] ------_=_NextPart_003_01CBE272.13692C80-- ------_=_NextPart_001_01CBE273.65A0E7AA--` // note: this mime has an error: the boundary for multipart/alternative is re-used. // it should use a new unique boundary marker, which then needs to be terminated after // the text/html part. var email3 = `MIME-Version: 1.0 X-Mailer: MailBee.NET 8.0.4.428 Subject: test subject To: kevinm@datamotion.com Content-Type: multipart/mixed; boundary="XXXXboundary text" --XXXXboundary text Content-Type: multipart/alternative; boundary="XXXXboundary text" --XXXXboundary text Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable This is the body text of a sample message. --XXXXboundary text Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable 
This is the body text of a sample message.
--XXXXboundary text Content-Type: text/plain; name="log_attachment.txt" Content-Disposition: attachment; filename="log_attachment.txt" Content-Transfer-Encoding: base64 TUlNRS1WZXJzaW9uOiAxLjANClgtTWFpbGVyOiBNYWlsQmVlLk5FVCA4LjAuNC40MjgNClN1Ympl Y3Q6IHRlc3Qgc3ViamVjdA0KVG86IGtldmlubUBkYXRhbW90aW9uLmNvbQ0KQ29udGVudC1UeXBl OiBtdWx0aXBhcnQvYWx0ZXJuYXRpdmU7DQoJYm91bmRhcnk9Ii0tLS09X05leHRQYXJ0XzAwMF9B RTZCXzcyNUUwOUFGLjg4QjdGOTM0Ig0KDQoNCi0tLS0tLT1fTmV4dFBhcnRfMDAwX0FFNkJfNzI1 RTA5QUYuODhCN0Y5MzQNCkNvbnRlbnQtVHlwZTogdGV4dC9wbGFpbjsNCgljaGFyc2V0PSJ1dGYt OCINCkNvbnRlbnQtVHJhbnNmZXItRW5jb2Rpbmc6IHF1b3RlZC1wcmludGFibGUNCg0KdGVzdCBi b2R5DQotLS0tLS09X05leHRQYXJ0XzAwMF9BRTZCXzcyNUUwOUFGLjg4QjdGOTM0DQpDb250ZW50 LVR5cGU6IHRleHQvaHRtbDsNCgljaGFyc2V0PSJ1dGYtOCINCkNvbnRlbnQtVHJhbnNmZXItRW5j b2Rpbmc6IHF1b3RlZC1wcmludGFibGUNCg0KPHByZT50ZXN0IGJvZHk8L3ByZT4NCi0tLS0tLT1f TmV4dFBhcnRfMDAwX0FFNkJfNzI1RTA5QUYuODhCN0Y5MzQtLQ0K --XXXXboundary text-- ` /* email 1 Array ( [0] => 1 [1] => 1.1 [2] => 1.2 [3] => 1.2.1 [4] => 1.2.1.1 [5] => 1.2.1.2 ) 0 =>744 to 3029 1 =>907 to 968 2 =>1101 to 3029 3 =>1889 to 3029 4 =>2052 to 2402 5 =>2594 to 2983 email 2 1 0 121 1763 1803 1.1 207 302 628 668 1.1.1 343 428 445 485 1.1.2 485 569 586 628 1.2 668 730 1763 1803 1.2.1 730 959 1721 1763 1.2.1.1 1045 1140 1501 1541 1.2.1.1.1 1181 1281 1303 1343 1.2.1.1.2 1343 1442 1459 1501 1.2.1.2 1541 1703 1721 1763 */ func TestNestedEmail(t *testing.T) { p = NewMimeParser() email = email3 //email = strings.Replace(string(email), "\n", "\r\n", -1) p.inject([]byte(email)) go func() { time.Sleep(time.Second * 15) // for debugging deadlocks //pprof.Lookup("goroutine").WriteTo(os.Stdout, 1) //os.Exit(1) }() if err := p.mime(nil, ""); err != nil { t.Error(err) } //output := email for part := range p.Parts { //output = replaceAtIndex(output, '#', p.Parts[part].StartingPos) //output = replaceAtIndex(output, '&', p.Parts[part].StartingPosBody) //output = replaceAtIndex(output, '*', p.Parts[part].EndingPosBody) fmt.Println(p.Parts[part].Node + " " + strconv.Itoa(int(p.Parts[part].StartingPos)) + " " + strconv.Itoa(int(p.Parts[part].StartingPosBody)) + " " + strconv.Itoa(int(p.Parts[part].EndingPosBody)) + " " + strconv.Itoa(int(p.Parts[part].EndingPos))) } //fmt.Print(output) //fmt.Println(strings.Index(output, "--D7F------------D7FD5A0B8AB9C65CCDBFA872--")) i := 1 _ = i //fmt.Println("[" + output[p.Parts[i].StartingPosBody:p.Parts[i].EndingPosBody] + "]") //i := 2 //fmt.Println("**********{" + output[p.parts[i].startingPosBody:p.parts[i].endingPosBody] + "}**********") //p.Close() //p.inject([]byte(email)) //if err := p.mime("", 1, ""); err != nil && err != io.EOF { // t.Error(err) //} //p.Close() } func replaceAtIndex(str string, replacement rune, index uint) string { return str[:index] + string(replacement) + str[index+1:] } var email4 = `Subject: test subject To: kevinm@datamotion.com This is not a an MIME email ` func TestNonMineEmail(t *testing.T) { p = NewMimeParser() p.inject([]byte(email4)) if err := p.mime(nil, ""); err != nil && err != NotMineErr { t.Error(err) } else { // err should be NotMime for part := range p.Parts { fmt.Println(p.Parts[part].Node + " " + strconv.Itoa(int(p.Parts[part].StartingPos)) + " " + strconv.Itoa(int(p.Parts[part].StartingPosBody)) + " " + strconv.Itoa(int(p.Parts[part].EndingPosBody))) } } err := p.Close() if err != nil { t.Error(err) } // what if we pass an empty string? p.inject([]byte{' '}) if err := p.mime(nil, ""); err == nil || err == NotMineErr { t.Error("unexpected error", err) } } var email6 = `Delivered-To: nevaeh@sharklasers.com Received: from bb_dyn_pb-146-88-38-36.violin.co.th (bb_dyn_pb-146-88-38-36.violin.co.th [146.88.38.36]) by sharklasers.com with SMTP id d0e961595a207a79ab84603750372de8@sharklasers.com; Tue, 17 Sep 2019 01:13:00 +0000 Received: from mx03.listsystemsf.net [100.20.38.85] by mxs.perenter.com with SMTP; Tue, 17 Sep 2019 04:57:59 +0500 Received: from mts.locks.grgtween.net ([Tue, 17 Sep 2019 04:52:27 +0500]) by webmail.halftomorrow.com with LOCAL; Tue, 17 Sep 2019 04:52:27 +0500 Received: from mail.naihautsui.co.kr ([61.220.30.1]) by mtu67.syds.piswix.net with ASMTP; Tue, 17 Sep 2019 04:47:25 +0500 Received: from unknown (HELO mx03.listsystemsf.net) (Tue, 17 Sep 2019 04:41:45 +0500) by smtp-server1.cfdenselr.com with LOCAL; Tue, 17 Sep 2019 04:41:45 +0500 Message-ID: <78431AF2.E9B20F56@violin.co.th> Date: Tue, 17 Sep 2019 04:14:56 +0500 Reply-To: "Richard" From: "Rick" User-Agent: Mozilla 4.73 [de]C-CCK-MCD DT (Win98; U) X-Accept-Language: en-us MIME-Version: 1.0 To: "Nevaeh" Subject: Cesść tereska Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAAG4AAAAyCAIAAAAydXkgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA B3RJTUUH1gYEExgGfYkXIAAAAAd0RVh0QXV0aG9yAKmuzEgAAAAMdEVYdERlc2NyaXB0aW9uABMJ ISMAAAAKdEVYdENvcHlyaWdodACsD8w6AAAADnRFWHRDcmVhdGlvbiB0aW1lADX3DwkAAAAJdEVY dFNvZnR3YXJlAF1w/zoAAAALdEVYdERpc2NsYWltZXIAt8C0jwAAAAh0RVh0V2FybmluZwDAG+aH AAAAB3RFWHRTb3VyY2UA9f+D6wAAAAh0RVh0Q29tbWVudAD2zJa/AAAABnRFWHRUaXRsZQCo7tIn AAABAElEQVR4nO2ZUY6DIBCG66YH88FGvQLHEI+hHsMriPFw7AMJIYAwoO269v+eSDPDmKn5HOXx AAAAAAAAAPxblmWRZJZlSU3RCCE451Z1IUQ00c1ScM7p15zHT1J0URSpwUkpmrquh2HY60uA1+vl /b2qKkp63tUCcA8otrK8k+dKr7+I1V0tEEUppRRCZDcnzZUZHLdP6g6uFomiBACYeHUTTnF9ZwV4 3dp1HaW0V5dRUR6ZJU3e7kqLaK+9ZpymKamKOV3uTZrhigCAU1wZhV7aRE2IlKn2tq60WNeVHtz3 vV7Xdc05b5pmL0ADVwLg5QOu3BNZhhxVwH1cmYoluwDqX2zbj2bPFgAAAMdJREFUNnUruBIALxmu dF1mBXhlSimtPzW6O5hfIQOJB7mcK72NSzrk2bYt+ku0IvhL8PCKwxhTi3meT9s06aBGOSjjpduF Ut1UnlnUUmG4kDtj6j5aa5c3noOfhX4ND1eXhvJMOYZFGYYxNs8zY6wsS73O3u2rUY1jjOkOBlp5 uSf4NTn/fsw4Bz/oSnMMCm9laU4FuzMj5ZpN6K58JrVSfnAEW9d127ZxHInVLZM2TSOlpL/C72He j2c+wQEAAAAAAAAAfB2/3ihTGANzPd8AAAAASUVORK5CYII= ` func TestNonMineEmailBigBody(t *testing.T) { p = NewMimeParser() b := []byte(email6) to := 74 var in [][]byte for i := 0; ; i += to { if to+i > len(b) { in = append(in, b[i:]) break } in = append(in, b[i:to+i]) } p.inject(in...) if err := p.mime(nil, ""); err != nil && err != NotMineErr { t.Error(err) } else { for part := range p.Parts { fmt.Println(p.Parts[part].Node + " " + strconv.Itoa(int(p.Parts[part].StartingPos)) + " " + strconv.Itoa(int(p.Parts[part].StartingPosBody)) + " " + strconv.Itoa(int(p.Parts[part].EndingPosBody))) } } err := p.Close() if err != nil { t.Error(err) } // what if we pass an empty string? p.inject([]byte{' '}) if err := p.mime(nil, ""); err == nil || err == NotMineErr { t.Error("unexpected error", err) } } func TestMimeErr(t *testing.T) { p := NewMimeParser() p.Open() // the error is missing subtype data := `To "moo": j m Subject: and a predicate MIME-Version: 1.0 Content-Type: text; Content-Transfer-Encoding: 1 Rock the microphone and then I’m gone ` i, err := p.Write([]byte(data)) if err != nil { if mimeErr, ok := err.(*Error); !ok { t.Error("not a *MimeError type") return } else { b, err := json.Marshal(mimeErr.Unwrap()) if err != nil { t.Error(err) return } if string(b) != "8" { t.Error("expecting error be 8") return } var parsedErr MimeError json.Unmarshal(b, &parsedErr) if parsedErr != ErrorMissingSubtype { t.Error("expecting error to be ErrorMissingSubtype, got:", parsedErr) return } } } if i != 148 { t.Error("test was expecting to read 148 bytes, got", i) } err = p.Close() }