From 7a4979d0cfd4c4dbe91b53b69c62aa28c295af5c Mon Sep 17 00:00:00 2001
From: Saivan <savian@me.com>
Date: Wed, 18 Apr 2018 20:55:06 +1000
Subject: Initial planning for the Timeline Module

This commit just includes a few plans and a massive derrangement
of the fx module before it is to be refactored into the Timeline
module. The basic methods are included, but everything is broken
---
 spec/spec/circle.js |   2 +-
 spec/spec/queue.js  | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 spec/spec/queue.js

(limited to 'spec')

diff --git a/spec/spec/circle.js b/spec/spec/circle.js
index c0f0936..0f2c8f4 100644
--- a/spec/spec/circle.js
+++ b/spec/spec/circle.js
@@ -1,3 +1,4 @@
+
 describe('Circle', function() {
   var circle
 
@@ -173,5 +174,4 @@ describe('Circle', function() {
       expect(window.matrixStringToArray(circle.node.getAttribute('transform'))).toEqual([1,0,0,1,12,12])
     })
   })
-
 })
diff --git a/spec/spec/queue.js b/spec/spec/queue.js
new file mode 100644
index 0000000..738831c
--- /dev/null
+++ b/spec/spec/queue.js
@@ -0,0 +1,111 @@
+
+describe ('SVG.Queue()', function () {
+
+  describe('first ()', function () {
+
+    it('returns null if no item in the queue', function () {
+      var queue = new SVG.Queue()
+      expect(queue.first()).toEqual(null)
+    })
+
+    it ('returns the first value in the queue', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      expect(queue.first()).toBe(1)
+      queue.push(2)
+      expect(queue.first()).toBe(1)
+    })
+  })
+
+  describe('last ()', function () {
+
+    it ('returns null if no item in the queue', function () {
+      var queue = new SVG.Queue()
+      expect(queue.last()).toEqual(null)
+    })
+
+    it ('returns the last value added', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      expect(queue.last()).toBe(1)
+      queue.push(2)
+      expect(queue.last()).toBe(2)
+    })
+  })
+
+  describe('push ()', function () {
+
+    it ('adds an element to the end of the queue', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      queue.push(2)
+      queue.push(3)
+
+      expect(queue.first()).toBe(1)
+      expect(queue.last()).toBe(3)
+    })
+
+    it ('changes the length when you add things', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      expect(queue.length).toBe(1)
+      queue.push(2)
+      expect(queue.length).toBe(2)
+    })
+  })
+
+  describe('remove ()', function () {
+    it('removes an item from the queue which matches the matcher', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      queue.push(2)
+      queue.push(3)
+
+      queue.remove(function(item) {
+        return item.value == 3
+      })
+
+      expect(queue.length).toBe(2)
+      expect(queue.last()).toBe(2)
+      expect(queue.first()).toBe(1)
+    })
+
+    it('removes no item from the queue if nothing is matched', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      queue.push(2)
+      queue.push(3)
+
+      queue.remove(function(item) {
+        return item.value == 4
+      })
+
+      expect(queue.length).toBe(3)
+      expect(queue.last()).toBe(3)
+      expect(queue.first()).toBe(1)
+    })
+  })
+
+  describe('shift ()', function () {
+    it('returns nothing if queue is empty', function () {
+      var queue = new SVG.Queue()
+      var val = queue.shift()
+      expect(val).toBeFalsy()
+    })
+
+    it('returns the first item of the queue and removes it', function () {
+      var queue = new SVG.Queue()
+      queue.push(1)
+      queue.push(2)
+      queue.push(3)
+
+      var val = queue.shift()
+
+      expect(queue.length).toBe(2)
+      expect(queue.last()).toBe(3)
+      expect(queue.first()).toBe(2)
+
+      expect(val).toBe(1)
+    })
+  })
+})
-- 
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