From 758e75f993cc858134f657b212b4e590de01074c Mon Sep 17 00:00:00 2001
From: Yusuf Sholotan <sholotanyusuf14@gmail.com>
Date: Wed, 18 Oct 2023 04:32:44 +0100
Subject: [PATCH] Add unit tests

---
 spec/models/food_spec.rb | 49 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 spec/models/food_spec.rb

diff --git a/spec/models/food_spec.rb b/spec/models/food_spec.rb
new file mode 100644
index 0000000..198e47d
--- /dev/null
+++ b/spec/models/food_spec.rb
@@ -0,0 +1,49 @@
+require 'rails_helper'
+
+RSpec.describe Food, type: :model do
+  let(:food) { Food.new(name: 'Apple', measurement_unit: 'lb') }
+
+  it 'validates the presence of the name' do
+    food.name = nil
+    expect(food).to_not be_valid
+  end
+
+  it 'validates the presence of the measurement unit' do
+    food.measurement_unit = nil
+    expect(food).to_not be_valid
+  end
+
+  it 'combines the name and measurement unit' do
+    expect(food.name_with_measurement_unit).to eq 'Apple (lb)'
+  end
+
+  it 'validates the minimum name length of 2 characters' do
+    food.name = 'Y'
+    expect(food).to_not be_valid
+  end
+
+  it 'validates the maximum name length of 50 characters' do
+    food.name = 'a' * 51
+    expect(food).to_not be_valid
+  end
+
+  it 'validates the presence of a price' do
+    food.price = nil
+    expect(food).to_not be_valid
+  end
+
+  it 'validates a non-negative price' do
+    food.price = -1
+    expect(food).to_not be_valid
+  end
+
+  it 'validates the presence of a quantity' do
+    food.quantity = nil
+    expect(food).to_not be_valid
+  end
+
+  it 'validates a non-negative quantity' do
+    food.quantity = -1
+    expect(food).to_not be_valid
+  end
+end