prime-factors

elixir/prime-factors/test/prime_factors_test.exs

@@ -0,0 +1,61 @@
+defmodule PrimeFactorsTest do
+  use ExUnit.Case
+
+  test "1" do
+    assert PrimeFactors.factors_for(1) == []
+  end
+
+  test "2" do
+    assert PrimeFactors.factors_for(2) == [2]
+  end
+
+  test "3" do
+    assert PrimeFactors.factors_for(3) == [3]
+  end
+
+  test "4" do
+    assert PrimeFactors.factors_for(4) == [2, 2]
+  end
+
+  test "6" do
+    assert PrimeFactors.factors_for(6) == [2, 3]
+  end
+
+  test "8" do
+    assert PrimeFactors.factors_for(8) == [2, 2, 2]
+  end
+
+  test "9" do
+    assert PrimeFactors.factors_for(9) == [3, 3]
+  end
+
+  test "12" do
+    assert PrimeFactors.factors_for(12) == [2, 2, 3]
+  end
+
+  test "27" do
+    assert PrimeFactors.factors_for(27) == [3, 3, 3]
+  end
+
+  test "625" do
+    assert PrimeFactors.factors_for(625) == [5, 5, 5, 5]
+  end
+
+  test "901255" do
+    assert PrimeFactors.factors_for(901_255) == [5, 17, 23, 461]
+  end
+
+  test "93819012551" do
+    assert PrimeFactors.factors_for(93_819_012_551) == [11, 9539, 894_119]
+  end
+
+  @tag :slow
+  # @tag timeout: 2000
+  #
+  # The timeout tag above will set the below test to fail unless it completes
+  # in under two seconds. Uncomment it if you want to test the efficiency of your
+  # solution.
+  test "10000000055" do
+    assert PrimeFactors.factors_for(10_000_000_055) == [5, 2_000_000_011]
+  end
+end

elixir/prime-factors/test/test_helper.exs

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+ExUnit.start()
+ExUnit.configure(exclude: :pending, trace: true)