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import { describe, it } from "@std/testing/bdd";
import { expect, fn } from "@std/expect";
import { Mail, MailDeliverContext, MailDeliverer } from "./mail.ts";
const mockDate = "Fri, 02 May 2025 08:33:02 +0000";
const mockMessageId = "mock-message-id@from.mock";
const mockMessageId2 = "mock-message-id-2@from.mock";
const mockFromAddress = "mock@from.mock";
const mockCcAddress = "mock@cc.mock";
const mockBodyStr = `This is body content.
Line 2 ${mockMessageId2}
Line 4`;
const mockHeaders = [
["Content-Disposition", "inline"],
["Content-Transfer-Encoding", "quoted-printable"],
["MIME-Version", "1.0"],
["X-Mailer", "MIME-tools 5.509 (Entity 5.509)"],
["Content-Type", "text/plain; charset=utf-8"],
["From", `"Mock From" <${mockFromAddress}>`],
[
"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!#$%'*+-/=?^_\`{|}~@char-test.com>,
"Non-ASCII 用户" <user@例子.中国>,
admin@[192.168.1.1]`,
],
["CC", `Mock CC <${mockCcAddress}>`],
["Subject", "A very long mock\n subject"],
["Message-ID", `<${mockMessageId}>`],
["Date", mockDate],
];
const mockHeaderStr = mockHeaders.map((h) => h[0] + ": " + h[1]).join("\n");
const mockMailStr = mockHeaderStr + "\n\n" + mockBodyStr;
const mockCrlfMailStr = mockMailStr.replaceAll("\n", "\r\n");
const mockToAddresses = [
"john@example.com",
"alice+work@example.com",
"team@company.com",
"escape@test.com",
"just@email.com",
"comment@domain.net",
"weird!#$%'*+-/=?^_`{|}~@char-test.com",
"user@例子.中国",
"admin@[192.168.1.1]",
];
describe("Mail", () => {
it("simple parse", () => {
const parsed = new Mail(mockMailStr).startSimpleParse().sections();
expect(parsed.header).toEqual(mockHeaderStr);
expect(parsed.body).toEqual(mockBodyStr);
expect(parsed.sep).toBe("\n");
expect(parsed.eol).toBe("\n");
});
it("simple parse crlf", () => {
const parsed = new Mail(mockCrlfMailStr).startSimpleParse().sections();
expect(parsed.sep).toBe("\r\n");
expect(parsed.eol).toBe("\r\n");
});
it("simple parse date", () => {
expect(new Mail(mockMailStr).startSimpleParse().sections().headers().date())
.toEqual(new Date(mockDate));
});
it("simple parse headers", () => {
expect(
new Mail(mockMailStr).startSimpleParse().sections().headers(),
).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.startSimpleParse().sections().headers().recipients()])
.toEqual([
...mockToAddresses,
mockCcAddress,
]);
expect([
...mail.startSimpleParse().sections().headers().recipients({
domain: "example.com",
}),
]).toEqual([
...mockToAddresses,
mockCcAddress,
].filter((a) => a.endsWith("example.com")));
});
it("find all addresses", () => {
const mail = new Mail(mockMailStr);
expect(mail.simpleFindAllAddresses()).toEqual([
"mock@from.mock",
"john@example.com",
"alice+work@example.com",
"team@company.com",
"escape@test.com",
"just@email.com",
"comment@domain.net",
"mock@cc.mock",
"mock-message-id@from.mock",
"mock-message-id-2@from.mock",
]);
});
});
describe("MailDeliverer", () => {
class MockMailDeliverer extends MailDeliverer {
name = "mock";
override doDeliver = fn((_: Mail, ctx: MailDeliverContext) => {
ctx.result.recipients.set("*", { kind: "done", message: "success" });
return Promise.resolve();
}) as MailDeliverer["doDeliver"];
}
const mockDeliverer = new MockMailDeliverer();
it("deliver success", async () => {
await mockDeliverer.deliverRaw(mockMailStr);
expect(mockDeliverer.doDeliver).toHaveBeenCalledTimes(1);
});
});
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