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import { describe, it } from "@std/testing/bdd";
import { expect, fn } from "@std/expect";
import { Mail, MailDeliverer } from "./mail.ts";
const mockDate = "Fri, 02 May 2025 08:33:02 +0000";
const mockBodyStr = `This is body content.
Line 2
Line 4`;
const mockHeaders = [
["Content-Disposition", "inline"],
["Content-Transfer-Encoding", "quoted-printable"],
["MIME-Version", "1.0"],
["X-Mailer", "MIME-tools 5.509 (Entity 5.509)"],
["Content-Type", "text/plain; charset=utf-8"],
["From", '"Mock From" <mock@from.mock>'],
[
"To",
`"John \\"Big\\" Doe" <john@example.com>, "Alice (Work)" <alice+work@example.com>,
undisclosed-recipients:;, "Group: Team" <team@company.com>,
"Escaped, Name" <escape@test.com>, just@email.com,
"Comment (This is valid)" <comment@domain.net>,
"Odd @Chars" <weird!#$%'*+-/=?^_\`{|}~@char-test.com>,
"Non-ASCII 用户" <user@例子.中国>,
admin@[192.168.1.1]`,
],
["CC", "Mock CC <mock@cc.mock>"],
["Subject", "A very long mock\n subject"],
["Message-ID", "<abcdef@from.mock>"],
["Date", mockDate],
];
const mockHeaderStr = mockHeaders.map((h) => h[0] + ": " + h[1]).join("\n");
const mockMailStr = mockHeaderStr + "\n\n" + mockBodyStr;
const mockCrlfMailStr = mockMailStr.replaceAll("\n", "\r\n");
const mockToAddresses = [
"john@example.com",
"alice+work@example.com",
"team@company.com",
"escape@test.com",
"just@email.com",
"comment@domain.net",
"weird!#$%'*+-/=?^_`{|}~@char-test.com",
"user@例子.中国",
"admin@[192.168.1.1]",
];
const mockCcAddresses = ["mock@cc.mock"];
describe("Mail", () => {
it("simple parse", () => {
const parsed = new Mail(mockMailStr).simpleParse();
expect(parsed.sections.header).toEqual(mockHeaderStr);
expect(parsed.sections.body).toEqual(mockBodyStr);
expect(parsed.sep).toBe("\n");
expect(parsed.eol).toBe("\n");
});
it("simple parse crlf", () => {
const parsed = new Mail(mockCrlfMailStr).simpleParse();
expect(parsed.sep).toBe("\r\n");
expect(parsed.eol).toBe("\r\n");
});
it("simple parse date", () => {
expect(new Mail(mockMailStr).simpleParseDate()).toEqual(new Date(mockDate));
});
it("simple parse headers", () => {
expect(
new Mail(mockMailStr).simpleParseHeaders(),
).toEqual(mockHeaders.map(
(h) => [h[0], " " + h[1].replaceAll("\n", "")],
));
});
it("append headers", () => {
const mail = new Mail(mockMailStr);
const mockMoreHeaders = [["abc", "123"], ["def", "456"]] satisfies [
string,
string,
][];
mail.appendHeaders(mockMoreHeaders);
expect(mail.raw).toBe(
mockHeaderStr + "\n" +
mockMoreHeaders.map((h) => h[0] + ": " + h[1]).join("\n") +
"\n\n" + mockBodyStr,
);
});
it("parse recipients", () => {
const mail = new Mail(mockMailStr);
expect(mail.simpleParseRecipients()).toEqual([
...mockToAddresses,
...mockCcAddresses,
]);
expect(mail.simpleParseRecipients({domain: "example.com"})).toEqual([
...mockToAddresses,
...mockCcAddresses,
].filter(a => a.endsWith("example.com")));
});
});
describe("MailDeliverer", () => {
class MockMailDeliverer extends MailDeliverer {
name = "mock";
override doDeliver = fn() as MailDeliverer["doDeliver"];
}
const mockDeliverer = new MockMailDeliverer();
it("deliver success", async () => {
await mockDeliverer.deliverRaw(mockMailStr);
expect(mockDeliverer.doDeliver).toHaveBeenCalledTimes(1);
});
});
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