spec: using the correct types

spec/models/rating/averager_data_spec.rb

@@ -13,7 +13,7 @@ RSpec.describe Rating::Rating, ':averager_data' do
     end
 
     it 'returns the average of number of records for the given resource type' do
-      expect(result.as_json['count_avg'].to_s).to eq '1.333333333333333333'
+      expect(result.count_avg).to eq(BigDecimal('1.333333333333333333'))
     end
   end
 

spec/models/rating/data_spec.rb

@@ -21,7 +21,7 @@ RSpec.describe Rating::Rating, ':data' do
     end
 
     it 'returns the estimate for a resource' do
-      expect(result[:estimate].to_s).to eq '42.5000000000000000012000000505'
+      expect(result[:estimate]).to eq(BigDecimal('42.5000000000000000012000000505'))
     end
   end
 

spec/models/rating/update_rating_spec.rb

@@ -9,10 +9,10 @@ RSpec.describe Rating::Rating, ':update_rating' do
     it 'updates the rating data of the given resource' do
       record = described_class.find_by(resource: article_1)
 
-      expect(record.average).to  eq 50.5
-      expect(record.estimate).to eq 42.5
-      expect(record.sum).to      eq 101
-      expect(record.total).to    eq 2
+      expect(record.average).to  eq(BigDecimal('50.5'))
+      expect(record.estimate).to eq(BigDecimal('42.5'))
+      expect(record.sum).to      be(101)
+      expect(record.total).to    be(2)
     end
   end
 
@@ -22,26 +22,26 @@ RSpec.describe Rating::Rating, ':update_rating' do
     it 'updates the rating data of the given resource respecting the scope' do
       record = described_class.find_by(resource: article_1, scopeable: category)
 
-      expect(record.average).to  eq 1.5
-      expect(record.estimate).to eq 1.5
-      expect(record.sum).to      eq 3
-      expect(record.total).to    eq 2
+      expect(record.average).to  eq(BigDecimal('1.5'))
+      expect(record.estimate).to eq(BigDecimal('1.5'))
+      expect(record.sum).to      be(3)
+      expect(record.total).to    be(2)
     end
   end
 
   context 'when rate table has no record' do
-    let!(:resource) { create :article }
+    let!(:resource) { create(:article) }
     let!(:scope) { nil }
 
     it 'calculates with counts values as zero' do
-      described_class.update_rating resource, scope
+      described_class.update_rating(resource, scope)
 
       record = described_class.last
 
-      expect(record.average).to  eq 0
-      expect(record.estimate).to eq 0
-      expect(record.sum).to      eq 0
-      expect(record.total).to    eq 0
+      expect(record.average).to  eq(BigDecimal('0.0'))
+      expect(record.estimate).to eq(BigDecimal('0.0'))
+      expect(record.sum).to      be(0)
+      expect(record.total).to    be(0)
     end
   end
 end