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backend/node_modules/imapflow/test/imap-stream-test.js

@@ -0,0 +1,131 @@
+/*eslint no-unused-expressions: 0, prefer-arrow-callback: 0 */
+
+'use strict';
+
+const { ImapStream } = require('../lib/handler/imap-stream');
+const { parser } = require('../lib/handler/imap-handler');
+
+module.exports['Full input'] = test => {
+    let input = Buffer.from(
+        `A CAPABILITY
+A LOGIN "aaa" "bbb"
+A APPEND INBOX {5}
+12345
+A LOGIN {5}
+12345 {11}
+12345678901 "another"
+A LOGOUT
+`.replace(/\r?\n/g, '\r\n')
+    );
+
+    let expecting = [
+        { command: 'A CAPABILITY', literals: [] },
+        { command: 'A LOGIN "aaa" "bbb"', literals: [] },
+        { command: 'A APPEND INBOX {5}\r\n', literals: ['12345'] },
+        { command: 'A LOGIN {5}\r\n {11}\r\n "another"', literals: ['12345', '12345678901'] },
+        { command: 'A LOGOUT', literals: [] }
+    ];
+
+    let stream = new ImapStream();
+
+    let reading = false;
+    let reader = async () => {
+        let cmd;
+        while ((cmd = stream.read()) !== null) {
+            test.deepEqual({ command: cmd.payload.toString(), literals: cmd.literals.map(literal => literal.toString()) }, expecting.shift());
+
+            let parsed = await parser(cmd.payload, { literals: cmd.literals });
+            console.log(parsed);
+            cmd.next();
+        }
+    };
+
+    stream.on('readable', () => {
+        if (!reading) {
+            reading = true;
+            reader()
+                .catch(err => console.error(err))
+                .finally(() => {
+                    reading = false;
+                });
+        }
+    });
+
+    stream.on('error', err => {
+        test.ifError(err);
+    });
+
+    stream.on('end', () => {
+        test.done();
+    });
+
+    let writer = async () => {
+        stream.end(input);
+    };
+
+    writer().catch(err => test.ifError(err));
+};
+
+module.exports['Single byte'] = test => {
+    let input = Buffer.from(
+        `A CAPABILITY
+A LOGIN "aaa" "bbb"
+A APPEND INBOX {5}
+12345
+A LOGIN {5}
+12345 {11}
+12345678901 "another"
+A LOGOUT
+`.replace(/\r?\n/g, '\r\n')
+    );
+
+    let expecting = [
+        { command: 'A CAPABILITY', literals: [] },
+        { command: 'A LOGIN "aaa" "bbb"', literals: [] },
+        { command: 'A APPEND INBOX {5}\r\n', literals: ['12345'] },
+        { command: 'A LOGIN {5}\r\n {11}\r\n "another"', literals: ['12345', '12345678901'] },
+        { command: 'A LOGOUT', literals: [] }
+    ];
+
+    let stream = new ImapStream();
+
+    let reading = false;
+    let reader = async () => {
+        let cmd;
+        while ((cmd = stream.read()) !== null) {
+            test.deepEqual({ command: cmd.payload.toString(), literals: cmd.literals.map(literal => literal.toString()) }, expecting.shift());
+            cmd.next();
+        }
+    };
+
+    stream.on('readable', () => {
+        if (!reading) {
+            reading = true;
+            reader()
+                .catch(err => console.error(err))
+                .finally(() => {
+                    reading = false;
+                });
+        }
+    });
+
+    stream.on('error', err => {
+        test.ifError(err);
+    });
+
+    stream.on('end', () => {
+        test.done();
+    });
+
+    let writer = async () => {
+        for (let i = 0; i < input.length; i++) {
+            if (stream.write(Buffer.from([input[i]])) === false) {
+                await new Promise(resolve => stream.once('drain', resolve));
+            }
+            await new Promise(resolve => setTimeout(resolve, 10));
+        }
+        stream.end();
+    };
+
+    writer().catch(err => test.ifError(err));
+};