// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
//
// SPDX-License-Identifier: MIT

package mail

import "testing"

// TestEncoding_String tests the string method of the Encoding object
func TestEncoding_String(t *testing.T) {
	tests := []struct {
		name string
		e    Encoding
		want string
	}{
		{"Encoding: Base64", EncodingB64, "base64"},
		{"Encoding: QP", EncodingQP, "quoted-printable"},
		{"Encoding: None/8bit", NoEncoding, "8bit"},
		{"Encoding: US-ASCII/7bit", EncodingUSASCII, "7bit"},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if tt.e.String() != tt.want {
				t.Errorf("wrong string for Encoding returned. Expected: %s, got: %s",
					tt.want, tt.e.String())
			}
		})
	}
}

// TestContentType_String tests the string method of the ContentType object
func TestContentType_String(t *testing.T) {
	tests := []struct {
		name string
		ct   ContentType
		want string
	}{
		{"ContentType: text/plain", TypeTextPlain, "text/plain"},
		{"ContentType: text/html", TypeTextHTML, "text/html"},
		{
			"ContentType: application/octet-stream", TypeAppOctetStream,
			"application/octet-stream",
		},
		{
			"ContentType: multipart/alternative", TypeMultipartAlternative,
			"multipart/alternative",
		},
		{
			"ContentType: multipart/mixed", TypeMultipartMixed,
			"multipart/mixed",
		},
		{
			"ContentType: multipart/related", TypeMultipartRelated,
			"multipart/related",
		},
		{
			"ContentType: application/pgp-signature", TypePGPSignature,
			"application/pgp-signature",
		},
		{
			"ContentType: application/pgp-encrypted", TypePGPEncrypted,
			"application/pgp-encrypted",
		},

		{
			"ContentType: pkcs7-signature", typeSMimeSigned,
			`application/pkcs7-signature; name="smime.p7s"`,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if tt.ct.String() != tt.want {
				t.Errorf("wrong string for Content-Type returned. Expected: %s, got: %s",
					tt.want, tt.ct.String())
			}
		})
	}
}

// TestCharset_String tests the string method of the Charset object
func TestCharset_String(t *testing.T) {
	tests := []struct {
		name string
		c    Charset
		want string
	}{
		{"Charset: US-ASCII", CharsetASCII, "US-ASCII"},
		{"Charset: UTF-7", CharsetUTF7, "UTF-7"},
		{"Charset: UTF-8", CharsetUTF8, "UTF-8"},
		{"Charset: ISO-8859-1", CharsetISO88591, "ISO-8859-1"},
		{"Charset: ISO-8859-2", CharsetISO88592, "ISO-8859-2"},
		{"Charset: ISO-8859-3", CharsetISO88593, "ISO-8859-3"},
		{"Charset: ISO-8859-4", CharsetISO88594, "ISO-8859-4"},
		{"Charset: ISO-8859-5", CharsetISO88595, "ISO-8859-5"},
		{"Charset: ISO-8859-6", CharsetISO88596, "ISO-8859-6"},
		{"Charset: ISO-8859-7", CharsetISO88597, "ISO-8859-7"},
		{"Charset: ISO-8859-9", CharsetISO88599, "ISO-8859-9"},
		{"Charset: ISO-8859-13", CharsetISO885913, "ISO-8859-13"},
		{"Charset: ISO-8859-14", CharsetISO885914, "ISO-8859-14"},
		{"Charset: ISO-8859-15", CharsetISO885915, "ISO-8859-15"},
		{"Charset: ISO-8859-16", CharsetISO885916, "ISO-8859-16"},
		{"Charset: ISO-2022-JP", CharsetISO2022JP, "ISO-2022-JP"},
		{"Charset: ISO-2022-KR", CharsetISO2022KR, "ISO-2022-KR"},
		{"Charset: windows-1250", CharsetWindows1250, "windows-1250"},
		{"Charset: windows-1251", CharsetWindows1251, "windows-1251"},
		{"Charset: windows-1252", CharsetWindows1252, "windows-1252"},
		{"Charset: windows-1255", CharsetWindows1255, "windows-1255"},
		{"Charset: windows-1256", CharsetWindows1256, "windows-1256"},
		{"Charset: KOI8-R", CharsetKOI8R, "KOI8-R"},
		{"Charset: KOI8-U", CharsetKOI8U, "KOI8-U"},
		{"Charset: Big5", CharsetBig5, "Big5"},
		{"Charset: GB18030", CharsetGB18030, "GB18030"},
		{"Charset: GB2312", CharsetGB2312, "GB2312"},
		{"Charset: GBK", CharsetGBK, "GBK"},
		{"Charset: TIS-620", CharsetTIS620, "TIS-620"},
		{"Charset: EUC-KR", CharsetEUCKR, "EUC-KR"},
		{"Charset: Shift_JIS", CharsetShiftJIS, "Shift_JIS"},
		{"Charset: Unknown", CharsetUnknown, "Unknown"},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if tt.c.String() != tt.want {
				t.Errorf("wrong string for Charset returned. Expected: %s, got: %s",
					tt.want, tt.c.String())
			}
		})
	}
}

// TestContentType_String tests the mime type method of the MIMEType object
func TestMimeType_String(t *testing.T) {
	tests := []struct {
		mt   MIMEType
		want string
	}{
		{MIMEAlternative, "alternative"},
		{MIMEMixed, "mixed"},
		{MIMERelated, "related"},
		{MIMESMime, `signed; protocol="application/pkcs7-signature"; micalg=sha-256`},
	}
	for _, tt := range tests {
		t.Run(tt.mt.String(), func(t *testing.T) {
			if tt.mt.String() != tt.want {
				t.Errorf("wrong string for mime type returned. Expected: %s, got: %s",
					tt.want, tt.mt.String())
			}
		})
	}
}