1 files changed, 113 insertions, 0 deletions
diff --git a/tests/zcrc.js b/tests/zcrc.js
new file mode 100755
index 0000000..0698fa4
--- /dev/null
+++ b/tests/zcrc.js
@@ -0,0 +1,113 @@
+#!/usr/bin/env node
+
+"use strict";
+
+var tape = require('blue-tape');
+
+var Zmodem = Object.assign(
+    {},
+    require('../src/zcrc')
+);
+
+var zcrc = Zmodem.CRC;
+
+tape('crc16', function(t) {
+    t.deepEqual(
+        zcrc.crc16( [ 0x0d, 0x0a ] ),
+        [ 0xd7, 0x16 ],
+        'crc16 - first test'
+    );
+
+    t.deepEqual(
+        zcrc.crc16( [ 0x11, 0x17, 0, 0, 0 ] ),
+        [ 0xe4, 0x81 ],
+        'crc16 - second test'
+    );
+
+    t.end();
+} );
+
+tape('verify16', function(t) {
+    t.doesNotThrow(
+        () => zcrc.verify16( [ 0x0d, 0x0a ], [ 0xd7, 0x16 ] ),
+        'verify16 - no throw on good'
+    );
+
+    var err;
+    try { zcrc.verify16( [ 0x0d, 0x0a ], [ 0xd7, 16 ] ) }
+    catch(e) { err = e };
+
+    t.ok(
+        /215,16.*215,22/.test(err.message),
+        'verify16 - throw on bad (message)'
+    );
+
+    t.ok(
+        err instanceof Zmodem.Error,
+        'verify16 - typed error'
+    );
+
+    t.ok(
+        err.type,
+        'verify16 - error type'
+    );
+
+    t.end();
+} );
+
+//----------------------------------------------------------------------
+// The crc32 logic is unused for now, but some misbehaving ZMODEM
+// implementation might send CRC32 regardless of that we don’t
+// advertise it.
+//----------------------------------------------------------------------
+
+tape('crc32', function(t) {
+    const tests = [
+        [ [ 4, 0, 0, 0, 0 ], [ 0xdd, 0x51, 0xa2, 0x33 ] ],
+        [ [ 11, 17, 0, 0, 0 ], [ 0xf6, 0xf6, 0x57, 0x59 ] ],
+        [ [ 3, 0, 0, 0, 0 ], [ 205, 141, 130, 129 ] ],
+    ];
+//    } [ 3, 0, 0, 0, 0 ] [ 205, 141, 131, -127 ]
+//2172816845
+//crc32 [ 3, 0, 0, 0, 0 ] -2122150451
+
+    tests.forEach( (cur_t) => {
+        let [ input, output ] = cur_t;
+
+        t.deepEqual(
+            zcrc.crc32(input),
+            output,
+            "crc32: " + input.join(", ")
+        );
+    } );
+
+    t.end();
+} );
+
+tape('verify32', function(t) {
+    t.doesNotThrow(
+        () => zcrc.verify32( [ 4, 0, 0, 0, 0 ], [ 0xdd, 0x51, 0xa2, 0x33 ] ),
+        'verify32 - no throw on good'
+    );
+
+    var err;
+    try { zcrc.verify32( [ 4, 0, 0, 0, 0 ], [ 1,2,3,4 ] ) }
+    catch(e) { err = e };
+
+    t.ok(
+        /1,2,3,4.*221,81,162,51/.test(err.message),
+        'verify32 - throw on bad (message)'
+    );
+
+    t.ok(
+        err instanceof Zmodem.Error,
+        'verify32 - typed error'
+    );
+
+    t.ok(
+        err.type,
+        'verify32 - error type'
+    );
+
+    t.end();
+} );