Merge pull request #202 from MrPhantomT/feature/converted_power_digit…

…s_sum converted power digits sum
hexlet-codebattle · Oct 16, 2015 · 10b965c · 10b965c
2 parents cefe9e9 + 863ef54
commit 10b965c
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Showing 4 changed files with 24 additions and 20 deletions.
diff --git a/source/power_digits_sum.yml b/source/power_digits_sum.yml
diff --git a/src/battle_asserts/issues/power_digits_sum.clj b/src/battle_asserts/issues/power_digits_sum.clj
@@ -0,0 +1,15 @@
+(ns battle-asserts.issues.power-digits-sum
+  (:require [clojure.test.check.generators :as gen]
+            [faker.generate :as faker]))
+
+(def level :easy)
+
+(def description "Create a method to calculate sum of digits for 2**n
+                 For example, 2**15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.")
+
+(defn arguments-generator []
+  (gen/tuple (gen/choose 0 30)))
+
+(defn solution [n]
+  (reduce + (map #(Character/digit % 10)
+                 (str (apply * (repeat n 2))))))
diff --git a/test/battle_asserts/issues/power_digits_sum_test.clj b/test/battle_asserts/issues/power_digits_sum_test.clj
@@ -0,0 +1,9 @@
+(ns battle-asserts.issues.power-digits-sum-test
+  (:require [clojure.test :refer :all]
+            [clojure.test.check.properties :as prop :include-macros true]
+            [clojure.test.check.clojure-test :as ct :include-macros true]
+            [battle-asserts.issues.power-digits-sum :as issue]))
+
+(deftest test-solution
+  (is (= 13 (issue/solution 8)))
+  (is (= 26 (issue/solution 15))))
diff --git a/test/issues/power_digits_sum_test.clj.bak b/test/issues/power_digits_sum_test.clj.bak