1 files changed, 119 insertions, 0 deletions
diff --git a/tests/encode.js b/tests/encode.js
new file mode 100755
index 0000000..615635f
--- /dev/null
+++ b/tests/encode.js
@@ -0,0 +1,119 @@
+#!/usr/bin/env node
+
+"use strict";
+
+var tape = require('blue-tape');
+
+global.Zmodem = require('./lib/zmodem');
+
+var enclib = Zmodem.ENCODELIB;
+
+tape('round-trip: 32-bit little-endian', function(t) {
+    var times = 1000;
+
+    t.doesNotThrow(
+        () => {
+            for (var a=0; a<times; a++) {
+                var orig = Math.floor( 0xffffffff * Math.random() );
+
+                var enc = enclib.pack_u32_le(orig);
+                var roundtrip = enclib.unpack_u32_le(enc);
+
+                if (roundtrip !== orig) {
+                    throw( `Orig: ${orig}, Packed: ` + JSON.stringify(enc) + `, Parsed: ${roundtrip}` );
+                }
+            }
+        },
+        `round-trip 32-bit little-endian: ${times} times`
+    );
+
+    t.end();
+} );
+
+tape('unpack_u32_le', function(t) {
+    t.equals(
+        enclib.unpack_u32_le([222,233,202,254]),
+        4274711006,
+        'unpack 4-byte number'
+    );
+
+    var highest = 0xffffffff;
+    t.equals(
+        enclib.unpack_u32_le([255,255,255,255]),
+        highest,
+        `highest number possible (${highest})`
+    );
+
+    t.equals(
+        enclib.unpack_u32_le([1, 0, 0, 0]),
+        1,
+        '1'
+    );
+
+    t.end();
+});
+
+tape('unpack_u16_be', function(t) {
+    t.equals(
+        enclib.unpack_u16_be([202,254]),
+        51966,
+        'unpack 2-byte number'
+    );
+
+    var highest = 0xffff;
+    t.equals(
+        enclib.unpack_u16_be([255,255]),
+        highest,
+        `highest number possible (${highest})`
+    );
+
+    t.equals(
+        enclib.unpack_u16_be([0, 1]),
+        1,
+        '1'
+    );
+
+    t.end();
+});
+
+tape('octets_to_hex', function(t) {
+    t.deepEquals(
+        enclib.octets_to_hex( [ 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0x0a ] ),
+        '123456789abcdef00a'.split("").map( (c) => c.charCodeAt(0) ),
+        'hex encoding'
+    );
+
+    t.end();
+} );
+
+tape('parse_hex_octets', function(t) {
+    t.deepEquals(
+        enclib.parse_hex_octets( [ 48, 49, 102, 101 ] ),
+        [ 0x01, 0xfe ],
+        'parse hex excoding',
+    );
+
+    t.end();
+} );
+
+tape('round-trip: 16-bit big-endian', function(t) {
+    var times = 10000;
+
+    t.doesNotThrow(
+        () => {
+            for (var a=0; a<times; a++) {
+                var orig = Math.floor( 0x10000 * Math.random() );
+
+                var enc = enclib.pack_u16_be(orig);
+                var roundtrip = enclib.unpack_u16_be(enc);
+
+                if (roundtrip !== orig) {
+                    throw( `Orig: ${orig}, Packed: ` + JSON.stringify(enc) + `, Parsed: ${roundtrip}` );
+                }
+            }
+        },
+        `round-trip 16-bit big-endian: ${times} times`
+    );
+
+    t.end();
+} );