subtree(users/wpcarro): docking briefcase at '24f5a642' r/3226

git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c09813172c79820bcf526bb10cf4208
git-subtree-split: 24f5a642af3aa1627bbff977f0a101907a02c69f
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789

4 files changed, 83 insertions, 0 deletions

diff --git a/users/wpcarro/assessments/semiprimes/server/test/extras_test.exs b/users/wpcarro/assessments/semiprimes/server/test/extras_test.exs
new file mode 100644
index 000000000000..67d0b8875cae
--- /dev/null
+++ b/users/wpcarro/assessments/semiprimes/server/test/extras_test.exs
@@ -0,0 +1,18 @@
+defmodule ExtrasTest do
+  use ExUnit.Case
+  doctest Extras
+
+  describe "range" do
+    test "returns an empty list for descending sequences" do
+      assert Extras.range(0, -2) == []
+    end
+
+    test "returns an empty list for non-ascending sequences" do
+      assert Extras.range(8, 8) == []
+    end
+
+    test "returns an exclusive range" do
+      assert Extras.range(3, 6) == [3, 4, 5]
+    end
+  end
+end
diff --git a/users/wpcarro/assessments/semiprimes/server/test/math_test.exs b/users/wpcarro/assessments/semiprimes/server/test/math_test.exs
new file mode 100644
index 000000000000..c7186c824a8c
--- /dev/null
+++ b/users/wpcarro/assessments/semiprimes/server/test/math_test.exs
@@ -0,0 +1,30 @@
+defmodule MathTest do
+  use ExUnit.Case
+  doctest Math
+
+  describe "factor" do
+    test "returns the prime factors for an input" do
+      [
+        {15, [3, 5]},
+        {12, [2, 2, 3]},
+        {9, [3, 3]},
+        {21, [3, 7]}
+      ]
+      |> Enum.map(fn {input, expected} ->
+        assert Math.factor(input) == expected
+      end)
+    end
+
+    test "handles large numbers" do
+      assert Math.factor(104_023) == [17, 29, 211]
+    end
+
+    test "returns an empty list for 1" do
+      assert Math.factor(1) == []
+    end
+
+    test "returns the prime number itself when the input is prime" do
+      assert Math.factor(7) == [7]
+    end
+  end
+end
diff --git a/users/wpcarro/assessments/semiprimes/server/test/server_test.exs b/users/wpcarro/assessments/semiprimes/server/test/server_test.exs
new file mode 100644
index 000000000000..08d559734b5a
--- /dev/null
+++ b/users/wpcarro/assessments/semiprimes/server/test/server_test.exs
@@ -0,0 +1,34 @@
+defmodule ServerTest do
+  use ExUnit.Case
+  doctest Server
+
+  describe "semiprime" do
+    test "returns the factors when the number is semiprime" do
+      Cache.clear()
+      # Semiprimes below 30
+      [
+        {4, [2, 2]},
+        {6, [2, 3]},
+        {9, [3, 3]},
+        {10, [2, 5]},
+        {14, [2, 7]},
+        {15, [3, 5]},
+        {21, [3, 7]},
+        {22, [2, 11]},
+        {25, [5, 5]},
+        {26, [2, 13]}
+      ]
+      |> Enum.each(fn {input, expected} ->
+        assert Server.semiprime(input) == {:miss, expected}
+      end)
+    end
+
+    test "returns nothing when the number is a composite number" do
+      # Composite numbers below 30
+      [1, 2, 3, 5, 7, 8, 11, 12, 13, 16, 17, 18, 19, 20, 23, 24, 27, 28, 29]
+      |> Enum.each(fn x ->
+        assert Server.semiprime(x) == nil
+      end)
+    end
+  end
+end
diff --git a/users/wpcarro/assessments/semiprimes/server/test/test_helper.exs b/users/wpcarro/assessments/semiprimes/server/test/test_helper.exs
new file mode 100644
index 000000000000..869559e709ea
--- /dev/null
+++ b/users/wpcarro/assessments/semiprimes/server/test/test_helper.exs
@@ -0,0 +1 @@
+ExUnit.start()