diff --git a/__tests__/lib/voucherify_data.rb b/__tests__/lib/voucherify_data.rb
index 90e640d8..fa4bcc69 100644
--- a/__tests__/lib/voucherify_data.rb
+++ b/__tests__/lib/voucherify_data.rb
@@ -15,6 +15,7 @@ def initialize
     @loyalty_card = nil
     @product_ids = []
     @sku = nil
+    @validation_rule = nil
   end
 
   def set_discount_campaign(discount_campaign)
@@ -37,6 +38,10 @@ def add_product_id(product_id)
     @product_ids.push(product_id)
   end
 
+  def set_validation_rule(validation_rule)
+    @validation_rule = validation_rule
+  end
+
   def get_product_ids
     @product_ids
   end
@@ -89,6 +94,10 @@ def get_loyalty_card
     @loyalty_card
   end
 
+  def get_validation_rule
+    @validation_rule
+  end
+
   def set_loyalty_card(loyalty_card)
     @loyalty_card = loyalty_card
   end
diff --git a/__tests__/spec/2_campaigns_spec.rb b/__tests__/spec/2_campaigns_spec.rb
index 4cc5dd10..9658622d 100644
--- a/__tests__/spec/2_campaigns_spec.rb
+++ b/__tests__/spec/2_campaigns_spec.rb
@@ -14,7 +14,6 @@
   $created_promotion_campaign = nil
   $created_loyalty_campaign = nil
   $created_validation_rule_applicable_to = nil
-  $created_campaign_with_validation_rule = nil
 
   it 'create a validation rule with applicable_to', :order => :first do
     validation_rule = create_validation_rule_applicable_to(@validation_rules_api_instance, @voucherify_data.get_product.id)
@@ -22,6 +21,7 @@
     expect(validation_rule).not_to be_nil
 
     $created_validation_rule_applicable_to = validation_rule
+    @voucherify_data.set_validation_rule(validation_rule)
   end
 
   it 'create a discount campaign with applicable_to validation rule', :order => :second do
diff --git a/__tests__/spec/a1_validation_rules_spec.rb b/__tests__/spec/a1_validation_rules_spec.rb
new file mode 100644
index 00000000..44e1ed5c
--- /dev/null
+++ b/__tests__/spec/a1_validation_rules_spec.rb
@@ -0,0 +1,35 @@
+require_relative '../lib/config.rb'
+require_relative '../lib/voucherify_data.rb'
+require 'VoucherifySdk'
+
+RSpec.describe 'Validation Rules API', :order => :defined do
+  before(:each) do
+    @validation_rules_api_instance = Config.validation_rules_api_instance()
+    @voucherify_data = VoucherifyData.instance()
+  end
+
+  it 'create validation rule', :order => :first do
+    voucher = @voucherify_data.get_voucher()
+    validation_rule = @voucherify_data.get_validation_rule()
+
+    validationRulesAssignmentsCreateRequestBody = VoucherifySdk::ValidationRulesAssignmentsCreateRequestBody.new({
+      related_object_type: "voucher",
+      related_object_id: voucher.code
+    })
+
+    created_validation_rule_assignment = @validation_rules_api_instance.create_validation_rule_assignment(validation_rule.id, {
+        validation_rules_assignments_create_request_body: validationRulesAssignmentsCreateRequestBody
+    })
+
+    puts(created_validation_rule_assignment)
+
+    expect(created_validation_rule_assignment).not_to be_nil
+    expect(created_validation_rule_assignment.id).not_to be_nil
+    expect(created_validation_rule_assignment.created_at).not_to be_nil
+    expect(created_validation_rule_assignment.rule_id).to eq(validation_rule.id)
+    expect(created_validation_rule_assignment.related_object_id).to eq(voucher.id)
+    expect(created_validation_rule_assignment.related_object_type).to eq("voucher")
+    expect(created_validation_rule_assignment.object).to eq("validation_rules_assignment")
+  end
+
+end