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https://github.com/wneessen/go-mail.git
synced 2024-12-22 18:50:37 +01:00
More test coverage
New failing tests have been added to 'eml_test.go' to account for a variety of error situations, such as broken FROM, TO, headers, bodies, and unknown or unsupported content types. Improving the robustness of test coverage helps identify potential issues and ensure the resilience and correctness of the code.
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1 changed files with 222 additions and 0 deletions
222
eml_test.go
222
eml_test.go
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@ -5,6 +5,7 @@
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package mail
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import (
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"bytes"
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"fmt"
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"os"
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"strings"
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@ -31,6 +32,115 @@ This is a test mail. Please do not reply to this. Also this line is very long so
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainBrokenBody = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: base64
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This plain text body should not be parsed as Base64.
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`
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exampleMailPlainNoContentType = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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This plain text body should not be parsed as Base64.
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`
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exampleMailPlainUnknownContentType = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: application/unknown; charset=UTF-8
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Content-Transfer-Encoding: base64
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This plain text body should not be parsed as Base64.
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`
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exampleMailPlainBrokenHeader = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version = 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent = go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From = "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding = 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainBrokenFrom = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: Toni Tester" go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainBrokenTo = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: go-mail+test.go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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@ -99,6 +209,28 @@ This is a test mail. Please do not reply to this. Also this line is very lo=
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ng so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainUnsupportedTransferEnc = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text quoted-printable
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=ISO-8859-1
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Content-Transfer-Encoding: unknown
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it should be wrapped.
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㋛
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This is not ==D3
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Thank your for your business!
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The go-mail team
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@ -151,6 +283,37 @@ VGhpcyBpcyBhIHNpbXBsZSB0ZXN0IHRleHQgZmlsZSBhdHRhY2htZW50LgoKSXQgCiAgaGFzCiAg
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ICAgc2V2ZXJhbAogICAgICAgICAgICBuZXdsaW5lcwoJICAgICAgICAgICAgYW5kCgkgICAgc3Bh
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Y2VzCiAgICAgaW4KICBpdAouCgpBcyB3ZWxsIGFzIGFuIGVtb2ppOiDwn5mCCg==
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7--`
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exampleMailPlainB64BrokenBody = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text base64 with attachment
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User-Agent: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: multipart/mixed;
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boundary=45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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Content-Transfer-Encoding = base64
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Content-Type = text/plain; charset=UTF-8
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RGVhciBDdXN0b21lciwKClRoaXMgaXMgYSB0ZXN0IG1haWwuIFBsZWFzZSBkbyBub3QgcmVwbHkg
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dG8gdGhpcy4gQWxzbyB0aGlzIGxpbmUgaXMgdmVyeSBsb25nIHNvIGl0CnNob3VsZCBiZSB3cmFw
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cGVkLgoKClRoYW5rIHlvdXIgZm9yIHlvdXIgYnVzaW5lc3MhClRoZSBnby1tYWlsIHRlYW0KCi0t
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ClRoaXMgaXMgYSBzaWduYXR1cmU=
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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Content-Disposition: attachment; filename="test.attachment"
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Content-Transfer-Encoding: base64
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Content-Type: application/octet-stream; name="test.attachment"
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VGhpcyBpcyBhIHNpbXBsZSB0ZXN0IHRleHQgZmlsZSBhdHRhY2htZW50LgoKSXQgCiAgaGFzCiAg
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ICAgc2V2ZXJhbAogICAgICAgICAgICBuZXdsaW5lcwoJICAgICAgICAgICAgYW5kCgkgICAgc3Bh
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Y2VzCiAgICAgaW4KICBpdAouCgpBcyB3ZWxsIGFzIGFuIGVtb2ppOiDwn5mCCg==
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7--`
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exampleMailPlainB64WithEmbed = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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@ -270,6 +433,51 @@ func TestEMLToMsgFromFile(t *testing.T) {
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}
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}
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func TestEMLToMsgFromReaderFailing(t *testing.T) {
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mailbuf := bytes.Buffer{}
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mailbuf.WriteString(exampleMailPlainBrokenFrom)
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_, err := EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with broken FROM was supposed to fail, but didn't")
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}
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mailbuf.Reset()
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mailbuf.WriteString(exampleMailPlainBrokenHeader)
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_, err = EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with broken header was supposed to fail, but didn't")
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}
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mailbuf.Reset()
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mailbuf.WriteString(exampleMailPlainB64BrokenBody)
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_, err = EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with broken body was supposed to fail, but didn't")
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}
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mailbuf.Reset()
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mailbuf.WriteString(exampleMailPlainBrokenBody)
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_, err = EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with broken body was supposed to fail, but didn't")
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}
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mailbuf.Reset()
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mailbuf.WriteString(exampleMailPlainUnknownContentType)
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_, err = EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with unknown content type was supposed to fail, but didn't")
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}
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mailbuf.Reset()
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mailbuf.WriteString(exampleMailPlainNoContentType)
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_, err = EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with no content type was supposed to fail, but didn't")
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}
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mailbuf.Reset()
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mailbuf.WriteString(exampleMailPlainUnsupportedTransferEnc)
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_, err = EMLToMsgFromReader(&mailbuf)
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if err == nil {
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t.Error("EML from Reader with unsupported Transer-Encoding was supposed to fail, but didn't")
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}
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}
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func TestEMLToMsgFromStringBrokenDate(t *testing.T) {
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_, err := EMLToMsgFromString(exampleMailPlainNoEncInvalidDate)
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if err == nil {
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@ -291,6 +499,20 @@ func TestEMLToMsgFromStringBrokenDate(t *testing.T) {
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}
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}
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func TestEMLToMsgFromStringBrokenFrom(t *testing.T) {
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_, err := EMLToMsgFromString(exampleMailPlainBrokenFrom)
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if err == nil {
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t.Error("EML with broken FROM was supposed to fail, but didn't")
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}
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}
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func TestEMLToMsgFromStringBrokenTo(t *testing.T) {
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_, err := EMLToMsgFromString(exampleMailPlainBrokenTo)
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if err == nil {
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t.Error("EML with broken TO was supposed to fail, but didn't")
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}
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}
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func TestEMLToMsgFromStringWithAttachment(t *testing.T) {
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wantSubject := "Example mail // plain text base64 with attachment"
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msg, err := EMLToMsgFromString(exampleMailPlainB64WithAttachment)
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