now validates that the input is a lower that 1e6

app/controller/primes.rb

@@ -14,6 +14,8 @@ def call(env)
   def decompose(input)
     if !(Integer(input) rescue false)
       PrimeResults::NotANumber.new(input)
+    elsif input.to_i > 1_000_000
+      PrimeResults::NumberIsTooBig.new(input)
     else
       PrimeResults::Valid.new(input, PrimeFactors.of(input.to_i))
     end

app/primes/results.rb

@@ -15,11 +15,21 @@ def to_json
 
   class NotANumber
     def initialize(input)
-      @number = input
+      @input = input
     end
 
     def to_json
-      {:number => @number, :error => "not a number"}.to_json
+      {:number => @input, :error => "not a number"}.to_json
+    end
+  end
+
+  class NumberIsTooBig
+    def initialize(input)
+      @number = input.to_i
+    end
+
+    def to_json
+      {:number => @number, :error => "too big number (>1e6)"}.to_json
     end
   end
 

spec/challenges/prime_factors_challenge_spec.rb

@@ -44,4 +44,16 @@ def app
         '}')
   end
 
+  it "decomposes a positive integer into prime factors" do
+    get "http://localhost:9292/primeFactors/primeFactors?number=1000001"
+
+    expect(last_response.status).to eq(200)
+    expect(last_response.content_type).to eq("application/json")
+    expect(last_response.body).to eq(
+          '{' \
+            '"number":1000001,' \
+            '"error":"too big number (>1e6)"' \
+          '}')
+  end
+
 end