Add plan builder and tests

test/crafting/fixtures.coffee

@@ -31,6 +31,27 @@ MOD_VERSION_FILE =
 
     item: Cobblestone
 
+    item: Copper Block
+        recipe:
+            input: Copper Ingot
+            pattern: 000 000 000
+            tools: Crafting Table
+
+    item: Copper Ingot
+        recipe:
+            input: Copper Ore, Coal
+            pattern: .0. ... .1.
+            tools: Furnace
+        recipe:
+            input: Copper Ore, Charcoal
+            pattern: .0. ... .1.
+            tools: Furnace
+        recipe:
+            input: Copper Block
+            pattern: ... .0. ...
+
+    item: Copper Ore
+
     item: Furnace
         recipe:
             input: Cobblestone

test/crafting/graph_builder.test.coffee

@@ -5,8 +5,8 @@ Copyright (c) 2015 by Redwood Labs
 All rights reserved.
 ###
 
-fixtures     = require './fixtures'
-ItemSlug     = require '../../src/coffee/models/item_slug'
+fixtures = require './fixtures'
+ItemSlug = require '../../src/coffee/models/item_slug'
 
 ########################################################################################################################
 
@@ -61,9 +61,11 @@ describe 'GraphBuilder.coffee', ->
             it 'an item with multiple inputs', ->
                 runSingleItemTreeBuildingTest 'test__lever', 8, 9
 
-            it 'can make a tree for an item with multiple recipes', ->
+            it 'an item with multiple recipes', ->
                 runSingleItemTreeBuildingTest 'test__iron_ingot', 6, 11
 
-            it 'can make a tree for an item with multiple inputs and multiple recipes', ->
+            it 'an item with multiple inputs and multiple recipes', ->
                 runSingleItemTreeBuildingTest 'test__iron_sword', 8, 18
-                logger.debug builder.toString()
+
+            it 'an item with one recursive recipe', ->
+                runSingleItemTreeBuildingTest 'test__copper_ingot', 10, 24

test/crafting/plan_builder.test.coffee

@@ -0,0 +1,38 @@
+###
+Crafting Guide - plan_builder.test.coffee
+
+Copyright (c) 2015 by Redwood Labs
+All rights reserved.
+###
+
+fixtures = require './fixtures'
+PlanBuilder = require '../../src/coffee/models/crafting/plan_builder'
+
+########################################################################################################################
+
+describe 'plan_builder.coffee', ->
+
+    printPlan = (plan)->
+        return ((s.slug.replace(/^.*>.*>/, '') for s in plan)).join ' > '
+
+    it 'generates no plans for a gatherable item', ->
+        builder = new PlanBuilder fixtures.makeTree 'test__oak_wood'
+        plans = builder.producePlans 100
+
+        plans.length.should.equal 0
+        builder.complete.should.be.true
+
+    it 'can find a multi-step plan', ->
+        builder = new PlanBuilder fixtures.makeTree 'test__lever'
+        plans = builder.producePlans 100
+
+        printPlan(plans[0]).should.equal '4 test__oak_planks > 4 test__stick > test__lever'
+        plans.length.should.equal 1
+        builder.complete.should.be.true
+
+    it 'can find multiple plans', ->
+        builder = new PlanBuilder fixtures.makeTree 'test__iron_ingot'
+        plans = builder.producePlans 100
+
+        printPlan(plans[0]).should.equal 'test__charcoal > test__iron_ingot'
+        printPlan(plans[1]).should.equal 'test__iron_ingot'