1 files changed, 76 insertions, 0 deletions
diff --git a/deps/npm/node_modules/array-index/test.js b/deps/npm/node_modules/array-index/test.js
new file mode 100644
index 0000000000..d9e9c18281
--- /dev/null
+++ b/deps/npm/node_modules/array-index/test.js
@@ -0,0 +1,76 @@
+
+var ArrayIndex = require('./')
+var inherits = require('util').inherits
+var assert = require('assert')
+
+
+/**
+ * Create a "subclass".
+ */
+
+function Arrayish (length) {
+  ArrayIndex.call(this, length)
+  this.sets = Object.create(null)
+}
+
+// inherit from `ArrayIndex`
+inherits(Arrayish, ArrayIndex)
+
+
+// create an instance and run some tests
+var a = new Arrayish(11)
+
+assert.throws(function () {
+  a[0]
+}, /__get__/)
+
+assert.throws(function () {
+  a[0] = 0
+}, /__set__/)
+
+
+/**
+ * This "getter" function checks if the index has previosly been "set", and if so
+ * returns the index * the value previously set. If the index hasn't been set,
+ * return the index as-is.
+ */
+
+Arrayish.prototype.__get__ = function get (index) {
+  if (index in this.sets) {
+    return +this.sets[index] * index
+  } else {
+    return index
+  }
+}
+
+/**
+ * Store the last value set for this index.
+ */
+
+Arrayish.prototype.__set__ = function set (index, value) {
+  this.sets[index] = value
+}
+
+
+// test getters without being "set"
+assert.equal(0, a[0])
+assert.equal(1, a[1])
+assert.equal(2, a[2])
+assert.equal(3, a[3])
+assert.equal(4, a[4])
+
+// test setters, followed by getters
+a[10] = 1
+assert.equal(10, a[10])
+a[10] = 2
+assert.equal(20, a[10])
+a[10] = 3
+assert.equal(30, a[10])
+
+// test "length"
+assert.equal(11, a.length)
+
+a[4] = 20
+a[6] = 5.55432
+var b = [0, 1, 2, 3, 80, 5, 33.325919999999996, 7, 8, 9, 30]
+assert.equal(JSON.stringify(b), JSON.stringify(a))