add node modules to repo

node_modules/utf8-byte-length/test.js

@@ -0,0 +1,67 @@
+"use strict";
+
+var test = require("tape");
+var getLength = require("./index");
+var browserGetLength = require("./browser");
+
+function repeat(string, times) {
+  return new Array(times + 1).join(string);
+}
+
+// Test writing files to the fs
+//
+
+try {
+  var blns = require("./vendor/big-list-of-naughty-strings/blns.json");
+}
+catch (err) {
+  console.error("Error: Cannot load file './vendor/big-list-of-naughty-strings/blns.json'");
+  console.error();
+  console.error("Make sure you've initialized git submodules by running");
+  console.error();
+  console.error("    git submodule update --init");
+  console.error();
+  process.exit(1);
+}
+
+
+// 8-byte, 4-character string
+var THUMB = "👍🏽";
+
+// Tests run against both implementations
+[getLength, browserGetLength].forEach(function(getLength) {
+  // Strings with known lengths
+  [
+    ["", 0],
+    ["a", 1],
+    ["☃", 3],
+    ["a☃", 4],
+    [repeat("a", 250) + '\uD800\uDC00', 254],
+    [repeat("a", 251) + '\uD800\uDC00', 255],
+    [repeat("a", 252) + '\uD800\uDC00', 256],
+    [THUMB, 8],
+    [THUMB[0], 3],
+    [THUMB[1], 3],
+    [THUMB[2], 3],
+    [THUMB[3], 3],
+    [THUMB.slice(0, 2), 4],
+    [THUMB.slice(2, 4), 4],
+    [THUMB.slice(1, 3), 6],
+  ].forEach(function(desc) {
+    var string = desc[0];
+    var length = desc[1];
+    test(JSON.stringify(string) + "=" + length, function(t) {
+      t.equal(getLength(string), length);
+      t.end();
+    });
+  });
+
+  // Make sure result matches Buffer.byteLength for various strings
+  blns.forEach(function(str) {
+    test(JSON.stringify(str), function(t) {
+      t.equal(getLength(str), Buffer.byteLength(str));
+      t.end();
+    });
+  });
+});
+