From d44907035d9930d4ed63466abc0429a8cef35627 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Tue, 20 Oct 2015 09:15:54 -0700
Subject: [PATCH 01/14] Add self.all, self.find to all Classes and vendors
 method to Market class

---
 lib/far_mar/market.rb        | 36 ++++++++++++++++++++++++++++++++++++
 lib/far_mar/product.rb       | 15 +++++++++++++++
 lib/far_mar/sale.rb          | 15 +++++++++++++++
 lib/far_mar/vendor.rb        | 23 +++++++++++++++++++++++
 spec/far_mar/market_spec.rb  | 24 +++++++++++++++++++++++-
 spec/far_mar/product_spec.rb | 16 ++++++++++++++++
 spec/far_mar/sale_spec.rb    | 15 +++++++++++++++
 spec/far_mar/vendor_spec.rb  | 16 +++++++++++++++-
 8 files changed, 158 insertions(+), 2 deletions(-)

diff --git a/lib/far_mar/market.rb b/lib/far_mar/market.rb
index 5be343e9..d6807136 100644
--- a/lib/far_mar/market.rb
+++ b/lib/far_mar/market.rb
@@ -1,4 +1,40 @@
 module FarMar
   class Market
+
+    attr_reader :market_id, :name, :address, :city, :county, :state, :zip
+
+    def initialize(market_id, name, address, city, county, state, zip)
+      @market_id = market_id
+      @name = name
+      @address = address
+      @city = city
+      @county = county
+      @state = state
+      @zip = zip
+    end
+
+    def self.all
+      markets_csv = CSV.read("./support/markets.csv")
+      market_instances = []
+      markets_csv.each do |row|
+        market_instances.push(Market.new(row[0].to_i, row[1], row[2], row[3], row[4], row[5], row[6]))
+      end
+      return market_instances
+    end
+    def self.find(id)
+        self.all.find do |market|
+        market.market_id == id
+      end
+    end
+    def vendor
+      market_vendor_array = []
+      vendor_array = FarMar::Vendor.all
+      vendor_array.each do |vendor|
+        if vendor.market_id == @market_id
+          market_vendor_array.push(vendor)
+        end
+      end
+      return market_vendor_array
+    end
   end
 end
diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index 67d6716d..2c5f969b 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -1,4 +1,19 @@
 module FarMar
   class Product
+
+    def self.all
+      products_csv = CSV.read("./support/products.csv")
+      product_instances = []
+      products_csv.each do |row|
+        product_instances.push(Product.new(row[0].to_i, row[1], row[2].to_i))
+      end
+      return product_instances
+    end
+    def self.find(id)
+        self.all.find do |product|
+        product.product_id == id
+      end
+    end
+
   end
 end
diff --git a/lib/far_mar/sale.rb b/lib/far_mar/sale.rb
index 10e3780e..372fec44 100644
--- a/lib/far_mar/sale.rb
+++ b/lib/far_mar/sale.rb
@@ -1,4 +1,19 @@
 module FarMar
   class Sale
+
+    def self.all
+      saless_csv = CSV.read("./support/sales.csv")
+      sale_instances = []
+      sales_csv.each do |row|
+        sale_instances.push(Sale.new(row[0].to_i, row[1].to_i, row[2], row[3].to_i, row[4].to_i))
+      end
+      return sale_instances
+    end
+    def self.find(id)
+        self.all.find do |sale|
+        sale.sale_id == id
+      end
+    end
+
   end
 end
diff --git a/lib/far_mar/vendor.rb b/lib/far_mar/vendor.rb
index 43c213b6..2aef28ff 100644
--- a/lib/far_mar/vendor.rb
+++ b/lib/far_mar/vendor.rb
@@ -1,4 +1,27 @@
 module FarMar
   class Vendor
+
+    attr_reader :vendor_id, :name, :employees, :market_id
+
+    def initialize(vendor_id, name, employees, market_id)
+      @vendor_id = vendor_id
+      @name = name
+      @employees = employees
+      @market_id = market_id
+    end
+
+    def self.all
+      vendor_csv = CSV.read("./support/vendors.csv")
+      vendor_instances = []
+      vendor_csv.each do |row|
+        vendor_instances.push(Vendor.new(row[0].to_i, row[1], row[2], row[3].to_i))
+      end
+      return vendor_instances
+    end
+    def self.find(id)
+        self.all.find do |vendor|
+        vendor.vendor_id == id
+      end
+    end
   end
 end
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index 092c46ca..cbfb3504 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -2,11 +2,33 @@
 
 describe FarMar::Market do
   before :each do
-    @market = FarMar::Market.new
+    @market = FarMar::Market.new(1, "Meighan", "1234 N St", "Seattle", "WA", "King", "98103")
   end
   describe "#initialize" do
     it "creates a new instance" do
       expect(@market).to be_an_instance_of FarMar::Market
     end
   end
+
+  describe "self.all" do
+    it "creates an array of markets" do
+      expect(FarMar::Market.all).to be_an Array
+    end
+  end
+
+  describe "self.find" do
+    it "returns an instance of Market where the value of the id field in the CSV matches the passed parameter" do
+      result = FarMar::Market.find(3)
+      expect(result).to be_an Object
+      expect(result.market_id).to eq 3
+    end
+  end
+
+  describe "vendors" do
+    it "return a collection of vendor instances that are associated with market_id" do
+      market_vendor_array = @market.vendor
+      expect(market_vendor_array).to be_an Array
+      expect(market_vendor_array.length).to eq 6
+    end
+  end
 end
diff --git a/spec/far_mar/product_spec.rb b/spec/far_mar/product_spec.rb
index cf4bbf1e..bdb0310d 100644
--- a/spec/far_mar/product_spec.rb
+++ b/spec/far_mar/product_spec.rb
@@ -9,4 +9,20 @@
       expect(@product).to be_an_instance_of FarMar::Product
     end
   end
+
+  describe "self.all" do
+    it "creates an array of products" do
+      expect(FarMar::Product.all).to be_an Array
+    end
+  end
+
+  describe "self.find" do
+    it "returns an instance of Product where the value of the id field in the CSV matches the passed parameter" do
+      result = FarMar::Product.find(3)
+      expect(result).to be_an Object
+      expect(result.product_id).to eq 3
+    end
+  end
+
+
 end
diff --git a/spec/far_mar/sale_spec.rb b/spec/far_mar/sale_spec.rb
index 38d647a2..0e4b95f2 100644
--- a/spec/far_mar/sale_spec.rb
+++ b/spec/far_mar/sale_spec.rb
@@ -9,4 +9,19 @@
       expect(@sale).to be_an_instance_of FarMar::Sale
     end
   end
+
+  describe "self.all" do
+    it "creates an array of sales" do
+      expect(FarMar::Sale.all).to be_an Array
+    end
+  end
+
+  describe "self.find" do
+    it "returns an instance of Sale where the value of the id field in the CSV matches the passed parameter" do
+      result = FarMar::Sale.find(3)
+      expect(result).to be_an Object
+      expect(result.sale_id).to eq 3
+    end
+  end
+
 end
diff --git a/spec/far_mar/vendor_spec.rb b/spec/far_mar/vendor_spec.rb
index a1987411..310fabb2 100644
--- a/spec/far_mar/vendor_spec.rb
+++ b/spec/far_mar/vendor_spec.rb
@@ -2,11 +2,25 @@
 
 describe FarMar::Vendor do
   before :each do
-    @vendor = FarMar::Vendor.new
+    @vendor = FarMar::Vendor.new(1, "Joe", "10", "4")
   end
   describe "#initialize" do
     it "creates a new instance" do
       expect(@vendor).to be_an_instance_of FarMar::Vendor
     end
   end
+
+  describe "self.all" do
+    it "creates an array of vendors" do
+      expect(FarMar::Vendor.all).to be_an Array
+    end
+  end
+
+  describe "self.find" do
+    it "returns an instance of Vendor where the value of the id field in the CSV matches the passed parameter" do
+      result = FarMar::Vendor.find(1)
+      expect(result).to be_an Object
+      expect(result.vendor_id).to eq 1
+    end
+  end
 end

From ec0d81fcff8a4b91f4ddcf86b6091b6e05787648 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Tue, 20 Oct 2015 16:04:48 -0700
Subject: [PATCH 02/14] Add market method to Vendor Class and related tests,
 plus edits to other files

---
 lib/far_mar/market.rb        |  2 +-
 lib/far_mar/product.rb       |  9 +++++++++
 lib/far_mar/sale.rb          | 13 ++++++++++++-
 lib/far_mar/vendor.rb        |  9 +++++++++
 spec/far_mar/market_spec.rb  |  2 +-
 spec/far_mar/product_spec.rb |  2 +-
 spec/far_mar/sale_spec.rb    |  2 +-
 spec/far_mar/vendor_spec.rb  | 10 +++++++++-
 8 files changed, 43 insertions(+), 6 deletions(-)

diff --git a/lib/far_mar/market.rb b/lib/far_mar/market.rb
index d6807136..e4b7b51b 100644
--- a/lib/far_mar/market.rb
+++ b/lib/far_mar/market.rb
@@ -26,7 +26,7 @@ def self.find(id)
         market.market_id == id
       end
     end
-    def vendor
+    def vendors
       market_vendor_array = []
       vendor_array = FarMar::Vendor.all
       vendor_array.each do |vendor|
diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index 2c5f969b..a31196f2 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -1,6 +1,15 @@
 module FarMar
   class Product
 
+    attr_reader :product_id, :name, :vendor_id
+
+    def initialize(product_id, name, vendor_id)
+      @product_id = product_id
+      @name = name
+      @vendor_id = vendor_id
+    end
+
+
     def self.all
       products_csv = CSV.read("./support/products.csv")
       product_instances = []
diff --git a/lib/far_mar/sale.rb b/lib/far_mar/sale.rb
index 372fec44..79095b3a 100644
--- a/lib/far_mar/sale.rb
+++ b/lib/far_mar/sale.rb
@@ -1,8 +1,19 @@
 module FarMar
   class Sale
 
+    attr_reader :sale_id, :amount, :purchase_time, :vendor_id, :product_id
+
+    def initialize(sale_id, amount, purchae_time, vendor_id, product_id)
+      @sale_id = sale_id
+      @amount = amount
+      @purchae_time = purchae_time
+      @vendor_id = vendor_id
+      @product_id = product_id
+    end
+
+
     def self.all
-      saless_csv = CSV.read("./support/sales.csv")
+      sales_csv = CSV.read("./support/sales.csv")
       sale_instances = []
       sales_csv.each do |row|
         sale_instances.push(Sale.new(row[0].to_i, row[1].to_i, row[2], row[3].to_i, row[4].to_i))
diff --git a/lib/far_mar/vendor.rb b/lib/far_mar/vendor.rb
index 2aef28ff..ae3b966c 100644
--- a/lib/far_mar/vendor.rb
+++ b/lib/far_mar/vendor.rb
@@ -23,5 +23,14 @@ def self.find(id)
         vendor.vendor_id == id
       end
     end
+
+    def market
+      vendor_market_array = FarMar::Market.all
+      vendor_market_array.each do |row|
+        if row.market_id == @market_id
+          return row
+        end
+      end
+    end
   end
 end
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index cbfb3504..ff0affc8 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -26,7 +26,7 @@
 
   describe "vendors" do
     it "return a collection of vendor instances that are associated with market_id" do
-      market_vendor_array = @market.vendor
+      market_vendor_array = @market.vendors
       expect(market_vendor_array).to be_an Array
       expect(market_vendor_array.length).to eq 6
     end
diff --git a/spec/far_mar/product_spec.rb b/spec/far_mar/product_spec.rb
index bdb0310d..00ac9fac 100644
--- a/spec/far_mar/product_spec.rb
+++ b/spec/far_mar/product_spec.rb
@@ -2,7 +2,7 @@
 
 describe FarMar::Product do
   before :each do
-    @product = FarMar::Product.new
+    @product = FarMar::Product.new(5, "apple", 2)
   end
   describe "#initialize" do
     it "creates a new instance" do
diff --git a/spec/far_mar/sale_spec.rb b/spec/far_mar/sale_spec.rb
index 0e4b95f2..9dd06ad4 100644
--- a/spec/far_mar/sale_spec.rb
+++ b/spec/far_mar/sale_spec.rb
@@ -2,7 +2,7 @@
 
 describe FarMar::Sale do
   before :each do
-    @sale = FarMar::Sale.new
+    @sale = FarMar::Sale.new(10, "150", "12:00pm", 2, 4)
   end
   describe "#initialize" do
     it "creates a new instance" do
diff --git a/spec/far_mar/vendor_spec.rb b/spec/far_mar/vendor_spec.rb
index 310fabb2..990b4561 100644
--- a/spec/far_mar/vendor_spec.rb
+++ b/spec/far_mar/vendor_spec.rb
@@ -2,7 +2,7 @@
 
 describe FarMar::Vendor do
   before :each do
-    @vendor = FarMar::Vendor.new(1, "Joe", "10", "4")
+    @vendor = FarMar::Vendor.new(1, "Joe", "10", 4)
   end
   describe "#initialize" do
     it "creates a new instance" do
@@ -23,4 +23,12 @@
       expect(result.vendor_id).to eq 1
     end
   end
+
+  describe "market" do
+    it "returns the market instance that is associated with the vendor" do
+      vendor_market = @vendor.market
+      expect(vendor_market).to be_an Object
+      expect(vendor_market.market_id).to eq 4
+    end
+  end
 end

From 4baa975c4fa0dcdb9f25bffdc9367e37b850c4c0 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Tue, 20 Oct 2015 16:56:58 -0700
Subject: [PATCH 03/14] Add products method to Vendor class

---
 lib/far_mar/vendor.rb       | 11 +++++++++++
 spec/far_mar/vendor_spec.rb | 10 +++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/lib/far_mar/vendor.rb b/lib/far_mar/vendor.rb
index ae3b966c..3c631a02 100644
--- a/lib/far_mar/vendor.rb
+++ b/lib/far_mar/vendor.rb
@@ -32,5 +32,16 @@ def market
         end
       end
     end
+
+    def products
+      vendor_products_array = []
+      product_array = FarMar::Product.all
+      product_array.each do |product|
+        if product.vendor_id == @vendor_id
+          vendor_products_array.push(product)
+        end
+      end
+      return vendor_products_array
+    end
   end
 end
diff --git a/spec/far_mar/vendor_spec.rb b/spec/far_mar/vendor_spec.rb
index 990b4561..6fb36328 100644
--- a/spec/far_mar/vendor_spec.rb
+++ b/spec/far_mar/vendor_spec.rb
@@ -2,7 +2,7 @@
 
 describe FarMar::Vendor do
   before :each do
-    @vendor = FarMar::Vendor.new(1, "Joe", "10", 4)
+    @vendor = FarMar::Vendor.new(2, "Joe", "10", 4)
   end
   describe "#initialize" do
     it "creates a new instance" do
@@ -31,4 +31,12 @@
       expect(vendor_market.market_id).to eq 4
     end
   end
+
+  describe "products" do
+    it "return a collection of vendor instances that are associated with market_id" do
+      vendor_product_array = @vendor.products
+      expect(vendor_product_array).to be_an Array
+      expect(vendor_product_array.length).to eq 2
+    end
+  end
 end

From 1365b46f12386a867579517b7ca50871f88ff71b Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Wed, 21 Oct 2015 14:37:57 -0700
Subject: [PATCH 04/14] Add all methods to Vendor class and created tests for
 them

---
 lib/far_mar/sale.rb         |  4 ++--
 lib/far_mar/vendor.rb       | 24 ++++++++++++++++++++++++
 spec/far_mar/vendor_spec.rb | 32 ++++++++++++++++++++++++++++----
 3 files changed, 54 insertions(+), 6 deletions(-)

diff --git a/lib/far_mar/sale.rb b/lib/far_mar/sale.rb
index 79095b3a..7abdb148 100644
--- a/lib/far_mar/sale.rb
+++ b/lib/far_mar/sale.rb
@@ -3,10 +3,10 @@ class Sale
 
     attr_reader :sale_id, :amount, :purchase_time, :vendor_id, :product_id
 
-    def initialize(sale_id, amount, purchae_time, vendor_id, product_id)
+    def initialize(sale_id, amount, purchase_time, vendor_id, product_id)
       @sale_id = sale_id
       @amount = amount
-      @purchae_time = purchae_time
+      @purchase_time = purchase_time
       @vendor_id = vendor_id
       @product_id = product_id
     end
diff --git a/lib/far_mar/vendor.rb b/lib/far_mar/vendor.rb
index 3c631a02..106be9bf 100644
--- a/lib/far_mar/vendor.rb
+++ b/lib/far_mar/vendor.rb
@@ -43,5 +43,29 @@ def products
       end
       return vendor_products_array
     end
+
+    def sales
+      vendor_sales_array = []
+      sale_array = FarMar::Sale.all
+      sale_array.each do |sale|
+        if sale.vendor_id == @vendor_id
+          vendor_sales_array.push(sale)
+        end
+      end
+      return vendor_sales_array
+    end
+
+    def revenue
+      total_revenue = 0
+      sales.each do |sale|
+        total_revenue += sale.amount
+      end
+      return total_revenue
+    end
+
+    def self.by_market(market_id)
+      market = FarMar::Market.find(market_id)
+      return market.vendors
+    end
   end
 end
diff --git a/spec/far_mar/vendor_spec.rb b/spec/far_mar/vendor_spec.rb
index 6fb36328..6f88a23d 100644
--- a/spec/far_mar/vendor_spec.rb
+++ b/spec/far_mar/vendor_spec.rb
@@ -2,7 +2,7 @@
 
 describe FarMar::Vendor do
   before :each do
-    @vendor = FarMar::Vendor.new(2, "Joe", "10", 4)
+    @vendor = FarMar::Vendor.new(1, "Joe", "10", 4)
   end
   describe "#initialize" do
     it "creates a new instance" do
@@ -17,7 +17,7 @@
   end
 
   describe "self.find" do
-    it "returns an instance of Vendor where the value of the id field in the CSV matches the passed parameter" do
+    it "returns vendor instance where the value of the id the passed parameter" do
       result = FarMar::Vendor.find(1)
       expect(result).to be_an Object
       expect(result.vendor_id).to eq 1
@@ -33,10 +33,34 @@
   end
 
   describe "products" do
-    it "return a collection of vendor instances that are associated with market_id" do
+    it "returns a collection of product instances that are associated with vendor_id" do
       vendor_product_array = @vendor.products
       expect(vendor_product_array).to be_an Array
-      expect(vendor_product_array.length).to eq 2
+      expect(vendor_product_array.length).to eq 1
+    end
+  end
+
+  describe "sales" do
+    it "return a collection of sale instances that are associated with vendor_id" do
+      vendor_sale_array = @vendor.sales
+      expect(vendor_sale_array).to be_an Array
+      expect(vendor_sale_array.length).to eq 7
+    end
+  end
+
+  describe "revenue" do
+    it "returns the sum of all of the vendor's sales" do
+      total_sales = @vendor.revenue
+      expect(total_sales).to eq 38259
+    end
+  end
+
+  describe "self.by_market(market_id)" do
+    it "returns all of the vendors with the given market_id" do
+      vendors_at_market = FarMar::Vendor.by_market(4)
+      expect(vendors_at_market).to be_an Array
+      expect(vendors_at_market.length).to eq 4
+      expect(vendors_at_market[0].vendor_id).to eq 13
     end
   end
 end

From dcef780cc4a0d1ff47988ea9d92a7122f78bc885 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Wed, 21 Oct 2015 14:56:09 -0700
Subject: [PATCH 05/14] Add vendor method to Product class plus tests

---
 lib/far_mar/product.rb       |  9 +++++++++
 spec/far_mar/market_spec.rb  |  2 +-
 spec/far_mar/product_spec.rb | 10 +++++++++-
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index a31196f2..39b486c2 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -24,5 +24,14 @@ def self.find(id)
       end
     end
 
+    def vendor
+      product_vendor_array = FarMar::Vendor.all
+      product_vendor_array.each do |row|
+        if row.vendor_id == @vendor_id
+          return row
+        end
+      end
+    end
+
   end
 end
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index ff0affc8..d20e80ac 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -17,7 +17,7 @@
   end
 
   describe "self.find" do
-    it "returns an instance of Market where the value of the id field in the CSV matches the passed parameter" do
+    it "returns market instance where the value of the id the passed parameter" do
       result = FarMar::Market.find(3)
       expect(result).to be_an Object
       expect(result.market_id).to eq 3
diff --git a/spec/far_mar/product_spec.rb b/spec/far_mar/product_spec.rb
index 00ac9fac..cacb99d7 100644
--- a/spec/far_mar/product_spec.rb
+++ b/spec/far_mar/product_spec.rb
@@ -17,12 +17,20 @@
   end
 
   describe "self.find" do
-    it "returns an instance of Product where the value of the id field in the CSV matches the passed parameter" do
+    it "returns product instance where the value of the id the passed parameter" do
       result = FarMar::Product.find(3)
       expect(result).to be_an Object
       expect(result.product_id).to eq 3
     end
   end
 
+  describe "vendor" do
+    it "returns the vendor instance that is associated with the product" do
+      product_vendor = @product.vendor
+      expect(product_vendor).to be_an Object
+      expect(product_vendor.vendor_id).to eq 2
+    end
+  end
+
 
 end

From 4f3ac57229751edc306a24a8f3fc0003e6cff695 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Wed, 21 Oct 2015 15:24:53 -0700
Subject: [PATCH 06/14] Add sales method to Product class plus tests

---
 lib/far_mar/product.rb       | 11 +++++++++++
 spec/far_mar/product_spec.rb |  8 ++++++++
 2 files changed, 19 insertions(+)

diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index 39b486c2..e8b99f69 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -33,5 +33,16 @@ def vendor
       end
     end
 
+    def sales
+      product_sales_array = []
+      sale_array = FarMar::Sale.all
+      sale_array.each do |sale|
+        if sale.product_id == @product_id
+          product_sales_array.push(sale)
+        end
+      end
+      return product_sales_array
+    end
+
   end
 end
diff --git a/spec/far_mar/product_spec.rb b/spec/far_mar/product_spec.rb
index cacb99d7..4a276ed1 100644
--- a/spec/far_mar/product_spec.rb
+++ b/spec/far_mar/product_spec.rb
@@ -32,5 +32,13 @@
     end
   end
 
+  describe "sales" do
+    it "returns a collection of sale instances that are associated with product_id" do
+      product_sale_array = @product.sales
+      expect(product_sale_array).to be_an Array
+      expect(product_sale_array.length).to eq 2
+    end
+  end
+
 
 end

From 3cbba117c3eb0f5f72e4e00787d7cf2860c79dd1 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Wed, 21 Oct 2015 15:36:27 -0700
Subject: [PATCH 07/14] Add number_of_sales method to Product class

---
 lib/far_mar/product.rb       | 3 +++
 spec/far_mar/product_spec.rb | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index e8b99f69..4321c72e 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -44,5 +44,8 @@ def sales
       return product_sales_array
     end
 
+    def number_of_sales
+      return sales.length
+    end
   end
 end
diff --git a/spec/far_mar/product_spec.rb b/spec/far_mar/product_spec.rb
index 4a276ed1..b261461e 100644
--- a/spec/far_mar/product_spec.rb
+++ b/spec/far_mar/product_spec.rb
@@ -40,5 +40,12 @@
     end
   end
 
+  describe "number_of_sales" do
+    it "returns the number of times a product has been sold" do
+      total_times_sold = @product.number_of_sales
+      expect(total_times_sold).to eq 2
+    end
+  end
+
 
 end

From 3fb697e47fc375cf40479f8ab44846c605702960 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Wed, 21 Oct 2015 15:47:24 -0700
Subject: [PATCH 08/14] Add self.by_vendor(vendor_id) to Product class plus
 tests

---
 lib/far_mar/product.rb       | 6 ++++++
 spec/far_mar/product_spec.rb | 9 ++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index 4321c72e..5b72f483 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -47,5 +47,11 @@ def sales
     def number_of_sales
       return sales.length
     end
+
+    def self.by_vendor(vendor_id)
+      vendor = FarMar::Vendor.find(vendor_id)
+      return vendor.products
+    end
+
   end
 end
diff --git a/spec/far_mar/product_spec.rb b/spec/far_mar/product_spec.rb
index b261461e..6edc9be9 100644
--- a/spec/far_mar/product_spec.rb
+++ b/spec/far_mar/product_spec.rb
@@ -47,5 +47,12 @@
     end
   end
 
-
+  describe "self.by_vendor(vendor_id)" do
+    it "returns all of the products with the given vendor_id" do
+      products_by_vendor = FarMar::Product.by_vendor(2)
+      expect(products_by_vendor).to be_an Array
+      expect(products_by_vendor.length).to eq 2
+      expect(products_by_vendor[0].product_id).to eq 2
+    end
+  end
 end

From 4d10fe03a64dfd80e083c061c7ac2cf4065eb3eb Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Wed, 21 Oct 2015 15:59:22 -0700
Subject: [PATCH 09/14] Add product method to Sale class plus tests

---
 lib/far_mar/sale.rb       | 17 +++++++++++++++++
 spec/far_mar/sale_spec.rb | 15 +++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/lib/far_mar/sale.rb b/lib/far_mar/sale.rb
index 7abdb148..b2e74e62 100644
--- a/lib/far_mar/sale.rb
+++ b/lib/far_mar/sale.rb
@@ -26,5 +26,22 @@ def self.find(id)
       end
     end
 
+    def vendor
+      sale_vendor_array = FarMar::Vendor.all
+      sale_vendor_array.each do |row|
+        if row.vendor_id == @vendor_id
+          return row
+        end
+      end
+    end
+
+    def product
+      sale_product_array = FarMar::Product.all
+      sale_product_array.each do |row|
+        if row.product_id == @product_id
+          return row
+        end
+      end
+    end
   end
 end
diff --git a/spec/far_mar/sale_spec.rb b/spec/far_mar/sale_spec.rb
index 9dd06ad4..a9e2348b 100644
--- a/spec/far_mar/sale_spec.rb
+++ b/spec/far_mar/sale_spec.rb
@@ -24,4 +24,19 @@
     end
   end
 
+  describe "vendor" do
+    it "returns the vendor instance that is associated with the sale" do
+      sale_vendor = @sale.vendor
+      expect(sale_vendor).to be_an Object
+      expect(sale_vendor.vendor_id).to eq 2
+    end
+  end
+
+  describe "product" do
+    it "returns the product instance that is associated with the sale" do
+      sale_product = @sale.product
+      expect(sale_product).to be_an Object
+      expect(sale_product.product_id).to eq 4
+    end
+  end
 end

From d89ef53178ef9aac8514c55c91ad311d7bb2944e Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Thu, 22 Oct 2015 11:03:18 -0700
Subject: [PATCH 10/14] Add self.between(beginning_time, end_time) method to
 Sale class plus tests

---
 lib/far_mar/sale.rb       | 10 +++++++++-
 spec/far_mar/sale_spec.rb | 21 +++++++++++++++++++--
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/lib/far_mar/sale.rb b/lib/far_mar/sale.rb
index b2e74e62..9325c703 100644
--- a/lib/far_mar/sale.rb
+++ b/lib/far_mar/sale.rb
@@ -6,7 +6,7 @@ class Sale
     def initialize(sale_id, amount, purchase_time, vendor_id, product_id)
       @sale_id = sale_id
       @amount = amount
-      @purchase_time = purchase_time
+      @purchase_time = DateTime.strptime(purchase_time, "%Y-%m-%d %H:%M:%S %z")
       @vendor_id = vendor_id
       @product_id = product_id
     end
@@ -43,5 +43,13 @@ def product
         end
       end
     end
+
+    def self.between(beginning_time, end_time)
+      sales_by_time = []
+      FarMar::Sale.all.find_all do |sale_object|
+        sale_object.purchase_time >= beginning_time && sale_object.purchase_time <= end_time
+        sales_by_time.push(sale_object)
+      end
+    end
   end
 end
diff --git a/spec/far_mar/sale_spec.rb b/spec/far_mar/sale_spec.rb
index a9e2348b..d983711a 100644
--- a/spec/far_mar/sale_spec.rb
+++ b/spec/far_mar/sale_spec.rb
@@ -2,7 +2,7 @@
 
 describe FarMar::Sale do
   before :each do
-    @sale = FarMar::Sale.new(10, "150", "12:00pm", 2, 4)
+    @sale = FarMar::Sale.new(10, "150", "2013-11-07 04:34:56 -0800", 2, 4)
   end
   describe "#initialize" do
     it "creates a new instance" do
@@ -17,7 +17,7 @@
   end
 
   describe "self.find" do
-    it "returns an instance of Sale where the value of the id field in the CSV matches the passed parameter" do
+    it "returns sale instance where the value of the id the passed parameter" do
       result = FarMar::Sale.find(3)
       expect(result).to be_an Object
       expect(result.sale_id).to eq 3
@@ -39,4 +39,21 @@
       expect(sale_product.product_id).to eq 4
     end
   end
+
+  describe "self.between(beginning_time, end_time)" do
+    before :each do
+      @beginning_time = DateTime.strptime("2013-11-07 04:34:56 -0800", "%Y-%m-%d %H:%M:%S %z")
+      @end_time = DateTime.strptime("2013-11-10 01:51:24 -0800", "%Y-%m-%d %H:%M:%S %z")
+      @begin = DateTime.strptime("2013-11-07 05:00:24 -0800", "%Y-%m-%d %H:%M:%S %z")
+      @end = DateTime.strptime("2013-11-09 10:00:24 -0800", "%Y-%m-%d %H:%M:%S %z")
+      @id = 10
+    end
+      it "returns a collection of sales between two specific times" do
+        sales_by_time = FarMar::Sale.between(@beginning_time, @end_time)
+        expect(FarMar::Sale.find(10).purchase_time).to be_between @beginning_time, @end_time
+        expect(@end).to be_between @beginning_time, @end_time
+        expect(sales_by_time).to be_an Array
+        expect(sales_by_time[0]).to be_an Object
+      end
+  end
 end

From 6b3a1db40fd815c102ee0414076756d00fdaf53e Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Thu, 22 Oct 2015 11:39:45 -0700
Subject: [PATCH 11/14] Refactoring of sale_spec and add products method to
 Market class plus tests

---
 lib/far_mar/market.rb       |  8 ++++++++
 spec/far_mar/market_spec.rb | 10 +++++++++-
 spec/far_mar/sale_spec.rb   |  3 ---
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/lib/far_mar/market.rb b/lib/far_mar/market.rb
index e4b7b51b..0d2e3021 100644
--- a/lib/far_mar/market.rb
+++ b/lib/far_mar/market.rb
@@ -36,5 +36,13 @@ def vendors
       end
       return market_vendor_array
     end
+    def products
+      market_products = []
+      vendor_array = self.vendors
+      vendor_array.each do |vendor|
+        market_products += vendor.products
+      end
+      return market_products
+    end
   end
 end
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index d20e80ac..9c2a4577 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -25,10 +25,18 @@
   end
 
   describe "vendors" do
-    it "return a collection of vendor instances that are associated with market_id" do
+    it "returns a collection of vendor instances that are associated with market_id" do
       market_vendor_array = @market.vendors
       expect(market_vendor_array).to be_an Array
       expect(market_vendor_array.length).to eq 6
     end
   end
+
+  describe "products" do
+    it "returns a collection of product instances via the Vendor class" do
+      market_product_array = @market.products
+      expect(market_product_array).to be_an Array
+      expect(market_product_array[0]).to be_an_instance_of FarMar::Product
+    end
+  end
 end
diff --git a/spec/far_mar/sale_spec.rb b/spec/far_mar/sale_spec.rb
index d983711a..ec8441e8 100644
--- a/spec/far_mar/sale_spec.rb
+++ b/spec/far_mar/sale_spec.rb
@@ -44,14 +44,11 @@
     before :each do
       @beginning_time = DateTime.strptime("2013-11-07 04:34:56 -0800", "%Y-%m-%d %H:%M:%S %z")
       @end_time = DateTime.strptime("2013-11-10 01:51:24 -0800", "%Y-%m-%d %H:%M:%S %z")
-      @begin = DateTime.strptime("2013-11-07 05:00:24 -0800", "%Y-%m-%d %H:%M:%S %z")
-      @end = DateTime.strptime("2013-11-09 10:00:24 -0800", "%Y-%m-%d %H:%M:%S %z")
       @id = 10
     end
       it "returns a collection of sales between two specific times" do
         sales_by_time = FarMar::Sale.between(@beginning_time, @end_time)
         expect(FarMar::Sale.find(10).purchase_time).to be_between @beginning_time, @end_time
-        expect(@end).to be_between @beginning_time, @end_time
         expect(sales_by_time).to be_an Array
         expect(sales_by_time[0]).to be_an Object
       end

From 5cb2a8ad4b9746571bd00afcf2c9484c49733e49 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Thu, 22 Oct 2015 17:21:22 -0700
Subject: [PATCH 12/14] Add products method and self.search(search_team)
 methods to Market class plus tests

---
 lib/far_mar.rb              |  1 +
 lib/far_mar/market.rb       | 36 +++++++++++++++++++++++++++++++-----
 lib/far_mar/product.rb      | 12 +++++++-----
 lib/far_mar/sale.rb         | 12 +++++++-----
 lib/far_mar/vendor.rb       | 12 +++++++-----
 spec/far_mar/market_spec.rb | 29 +++++++++++++++++++++++++++++
 spec/far_mar/sale_spec.rb   |  1 +
 7 files changed, 83 insertions(+), 20 deletions(-)

diff --git a/lib/far_mar.rb b/lib/far_mar.rb
index db54a95a..0e045c26 100644
--- a/lib/far_mar.rb
+++ b/lib/far_mar.rb
@@ -4,3 +4,4 @@
 require './lib/far_mar/vendor'
 require './lib/far_mar/product'
 require './lib/far_mar/sale'
+require 'pry'
diff --git a/lib/far_mar/market.rb b/lib/far_mar/market.rb
index 0d2e3021..b71515bc 100644
--- a/lib/far_mar/market.rb
+++ b/lib/far_mar/market.rb
@@ -1,3 +1,4 @@
+
 module FarMar
   class Market
 
@@ -14,12 +15,14 @@ def initialize(market_id, name, address, city, county, state, zip)
     end
 
     def self.all
-      markets_csv = CSV.read("./support/markets.csv")
-      market_instances = []
-      markets_csv.each do |row|
-        market_instances.push(Market.new(row[0].to_i, row[1], row[2], row[3], row[4], row[5], row[6]))
+      @@market_instances ||= []
+      if @@market_instances == []
+        markets_csv = CSV.read("./support/markets.csv")
+        markets_csv.each do |row|
+          @@market_instances.push(Market.new(row[0].to_i, row[1], row[2], row[3], row[4], row[5], row[6]))
+        end
       end
-      return market_instances
+      return @@market_instances
     end
     def self.find(id)
         self.all.find do |market|
@@ -44,5 +47,28 @@ def products
       end
       return market_products
     end
+    def self.search(search_term)
+      search_term = search_term.downcase
+      name_array = []
+      name_search = FarMar::Market.all.map do |market|
+        {market.name.downcase => market}
+      end
+      name_search2 = FarMar::Vendor.all.map do |vendor|
+        {vendor.name.downcase => FarMar::Market.find(vendor.market_id)}
+      end
+      (name_search + name_search2).each do |hash|
+        if hash.keys[0].include?(search_term)
+          name_array += hash.values
+        end
+      end
+      return name_array.uniq
+    end
+
+    def preferred_vendor
+      vendor_sales = []
+      sales_per_vendor = FarMar::Vendor.all.map do |vendor|
+        vendor.revenue
+      end
+    end
   end
 end
diff --git a/lib/far_mar/product.rb b/lib/far_mar/product.rb
index 5b72f483..d3a2692a 100644
--- a/lib/far_mar/product.rb
+++ b/lib/far_mar/product.rb
@@ -11,12 +11,14 @@ def initialize(product_id, name, vendor_id)
 
 
     def self.all
-      products_csv = CSV.read("./support/products.csv")
-      product_instances = []
-      products_csv.each do |row|
-        product_instances.push(Product.new(row[0].to_i, row[1], row[2].to_i))
+      @@product_instances ||= [] #@@product = @@product || []
+      if @@product_instances == []
+        products_csv = CSV.read("./support/products.csv")
+        products_csv.each do |row|
+          @@product_instances.push(Product.new(row[0].to_i, row[1], row[2].to_i))
+        end
       end
-      return product_instances
+      return @@product_instances
     end
     def self.find(id)
         self.all.find do |product|
diff --git a/lib/far_mar/sale.rb b/lib/far_mar/sale.rb
index 9325c703..d26c7ee2 100644
--- a/lib/far_mar/sale.rb
+++ b/lib/far_mar/sale.rb
@@ -13,12 +13,14 @@ def initialize(sale_id, amount, purchase_time, vendor_id, product_id)
 
 
     def self.all
-      sales_csv = CSV.read("./support/sales.csv")
-      sale_instances = []
-      sales_csv.each do |row|
-        sale_instances.push(Sale.new(row[0].to_i, row[1].to_i, row[2], row[3].to_i, row[4].to_i))
+      @@sale_instances ||= []
+      if @@sale_instances == []
+        sales_csv = CSV.read("./support/sales.csv")
+        sales_csv.each do |row|
+          @@sale_instances.push(Sale.new(row[0].to_i, row[1].to_i, row[2], row[3].to_i, row[4].to_i))
+        end
       end
-      return sale_instances
+      return @@sale_instances
     end
     def self.find(id)
         self.all.find do |sale|
diff --git a/lib/far_mar/vendor.rb b/lib/far_mar/vendor.rb
index 106be9bf..c4440409 100644
--- a/lib/far_mar/vendor.rb
+++ b/lib/far_mar/vendor.rb
@@ -11,12 +11,14 @@ def initialize(vendor_id, name, employees, market_id)
     end
 
     def self.all
-      vendor_csv = CSV.read("./support/vendors.csv")
-      vendor_instances = []
-      vendor_csv.each do |row|
-        vendor_instances.push(Vendor.new(row[0].to_i, row[1], row[2], row[3].to_i))
+      @@vendor_instances ||= []
+      if @@vendor_instances == []
+        vendor_csv = CSV.read("./support/vendors.csv")
+        vendor_csv.each do |row|
+          @@vendor_instances.push(Vendor.new(row[0].to_i, row[1], row[2], row[3].to_i))
+        end
       end
-      return vendor_instances
+      return @@vendor_instances
     end
     def self.find(id)
         self.all.find do |vendor|
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index 9c2a4577..d1593612 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -39,4 +39,33 @@
       expect(market_product_array[0]).to be_an_instance_of FarMar::Product
     end
   end
+
+  describe "self.search(search_term)" do
+    describe "does the search part of the method" do
+      it "searches market names" do
+        expect(FarMar::Market.find(4).name).to be_a String
+        expect(FarMar::Market.find(4).name).to include("Preston")
+      end
+      it "searches vendor names" do
+        expect(FarMar::Vendor.find(2).name).to be_a String
+        expect(FarMar::Vendor.find(2).name).to include("Hamill")
+      end
+    end
+    describe "creates a collection of market instances that contain search_term" do
+      it "creates a collection of markets from market name search" do
+        expect(FarMar::Market.search("People").length).to eq 2
+        expect(FarMar::Market.search("People")[0].market_id).to eq 1
+      end
+      it "creates a collection of markets from vendor name search" do
+        expect(FarMar::Market.search("Donnelly").length).to eq 17
+        expect(FarMar::Market.search("donnelly")[0].market_id).to eq 3
+      end
+    end
+
+    describe "preferred_vendor" do
+      it "returns the vendor with the highest revenue" do
+        expect(FarMar::Market..preferred_vendor).to be_an Object
+      end
+    end
+  end
 end
diff --git a/spec/far_mar/sale_spec.rb b/spec/far_mar/sale_spec.rb
index ec8441e8..5fa063db 100644
--- a/spec/far_mar/sale_spec.rb
+++ b/spec/far_mar/sale_spec.rb
@@ -51,6 +51,7 @@
         expect(FarMar::Sale.find(10).purchase_time).to be_between @beginning_time, @end_time
         expect(sales_by_time).to be_an Array
         expect(sales_by_time[0]).to be_an Object
+        expect(sales_by_time).to include(FarMar::Sale.find(10))
       end
   end
 end

From 7d3afca52fe3d6ceb443697687fb976a85e9fe1e Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Fri, 23 Oct 2015 15:20:46 -0700
Subject: [PATCH 13/14] Add random spec test to spec_helper, add
 preferred_vendor(date) to Market class

---
 lib/far_mar.rb              |  2 +-
 lib/far_mar/market.rb       | 11 ++++++-----
 lib/far_mar/vendor.rb       |  5 ++++-
 spec/far_mar/market_spec.rb | 14 ++++++++++++--
 spec/spec_helper.rb         |  4 ++++
 5 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/lib/far_mar.rb b/lib/far_mar.rb
index 0e045c26..659b93f4 100644
--- a/lib/far_mar.rb
+++ b/lib/far_mar.rb
@@ -1,7 +1,7 @@
+require 'pry'
 require 'csv'
 require 'time'
 require './lib/far_mar/market'
 require './lib/far_mar/vendor'
 require './lib/far_mar/product'
 require './lib/far_mar/sale'
-require 'pry'
diff --git a/lib/far_mar/market.rb b/lib/far_mar/market.rb
index b71515bc..26ae3ca8 100644
--- a/lib/far_mar/market.rb
+++ b/lib/far_mar/market.rb
@@ -64,11 +64,12 @@ def self.search(search_term)
       return name_array.uniq
     end
 
-    def preferred_vendor
-      vendor_sales = []
-      sales_per_vendor = FarMar::Vendor.all.map do |vendor|
-        vendor.revenue
-      end
+    def preferred_vendor(date = nil)
+      market_vendors = self.vendors
+        top_vendor = market_vendors.max_by do |vendor|
+          vendor.revenue(date)
+        end
+        return top_vendor
     end
   end
 end
diff --git a/lib/far_mar/vendor.rb b/lib/far_mar/vendor.rb
index c4440409..09dab969 100644
--- a/lib/far_mar/vendor.rb
+++ b/lib/far_mar/vendor.rb
@@ -57,10 +57,13 @@ def sales
       return vendor_sales_array
     end
 
-    def revenue
+    def revenue(date = nil)
+      date = DateTime.strptime(date, "%Y-%m-%d") if date != nil
       total_revenue = 0
       sales.each do |sale|
+        if sale.purchase_time.to_date == date || date == nil
         total_revenue += sale.amount
+        end
       end
       return total_revenue
     end
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index d1593612..f3b057c1 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -2,7 +2,8 @@
 
 describe FarMar::Market do
   before :each do
-    @market = FarMar::Market.new(1, "Meighan", "1234 N St", "Seattle", "WA", "King", "98103")
+    @market = FarMar::Market.new(1, "Meighan's Ranch", "1234 N St", "Seattle", "WA", "King", "98103")
+    @market_1 = FarMar::Market.new(1,"People's Co-op Farmers Market","30th and Burnside","Portland","Multnomah","Oregon","97202")
   end
   describe "#initialize" do
     it "creates a new instance" do
@@ -64,7 +65,16 @@
 
     describe "preferred_vendor" do
       it "returns the vendor with the highest revenue" do
-        expect(FarMar::Market..preferred_vendor).to be_an Object
+        expect(@market_1.preferred_vendor).to be_an_instance_of FarMar::Vendor
+        expect(@market_1.preferred_vendor.vendor_id).to eq 5
+        expect(@market_1.preferred_vendor.revenue).to eq 61749
+      end
+    end
+
+    describe "preferred_vendor(date)" do
+      it "returns the vendor with the highest revenue for the given date" do
+        @date = DateTime.strptime("2013-11-07", "%Y-%m-%d")
+        expect(@market_1.preferred_vendor("2013-11-07")).to be_an_instance_of FarMar::Vendor
       end
     end
   end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 42436260..b5c43b74 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,3 +2,7 @@
 SimpleCov.start
 
 require "./lib/far_mar"
+
+RSpec.configure do |config|
+ config.order = 'random'
+end

From 740d436ef71fe0a11137c50a94ed590e746ba118 Mon Sep 17 00:00:00 2001
From: Meighan Rasley <meighanr@gmail.com>
Date: Fri, 23 Oct 2015 15:36:48 -0700
Subject: [PATCH 14/14] Add worst vendor method to Market class

---
 lib/far_mar/market.rb       | 9 +++++++++
 spec/far_mar/market_spec.rb | 8 ++++++++
 2 files changed, 17 insertions(+)

diff --git a/lib/far_mar/market.rb b/lib/far_mar/market.rb
index 26ae3ca8..89ff4892 100644
--- a/lib/far_mar/market.rb
+++ b/lib/far_mar/market.rb
@@ -71,5 +71,14 @@ def preferred_vendor(date = nil)
         end
         return top_vendor
     end
+
+    def worst_vendor(date = nil)
+      market_vendors = self.vendors
+        last_vendor = market_vendors.min_by do |vendor|
+          vendor.revenue(date)
+        end
+        return last_vendor
+    end
+
   end
 end
diff --git a/spec/far_mar/market_spec.rb b/spec/far_mar/market_spec.rb
index f3b057c1..26213cc0 100644
--- a/spec/far_mar/market_spec.rb
+++ b/spec/far_mar/market_spec.rb
@@ -77,5 +77,13 @@
         expect(@market_1.preferred_vendor("2013-11-07")).to be_an_instance_of FarMar::Vendor
       end
     end
+
+    describe "worst_vendor" do
+      it "returns the vendor with the lowest revenue" do
+        expect(@market_1.worst_vendor).to be_an_instance_of FarMar::Vendor
+        expect(@market_1.worst_vendor.vendor_id).to eq 6
+        expect(@market_1.worst_vendor.revenue).to eq 2977
+      end
+    end
   end
 end