stores a proposal notification

spec/models/proposal_notification_spec.rb

@@ -0,0 +1,25 @@
+require 'rails_helper'
+
+describe ProposalNotification do
+  let(:notification) { build(:proposal_notification) }
+
+  it "should be valid" do
+    expect(notification).to be_valid
+  end
+
+  it "should not be valid without a title" do
+    notification.title = nil
+    expect(notification).to_not be_valid
+  end
+
+  it "should not be valid without a body" do
+    notification.body = nil
+    expect(notification).to_not be_valid
+  end
+
+  it "should not be valid without an associated proposal" do
+    notification.proposal = nil
+    expect(notification).to_not be_valid
+  end
+
+end