From 1efda3e75dee42c560a7dab018c583357f1b0eec Mon Sep 17 00:00:00 2001
From: Moxley Stratton <mstratton@weedmaps.com>
Date: Fri, 9 Feb 2018 16:04:53 -0800
Subject: [PATCH 1/3] Improved test descriptions

Some test descriptions weren't doing a good job of communicating
the rules of Pig Latin, leading to implementations that gamed the tests.
For example, implementations were looking specifically for a leading 'yt' word as
a vowel word, but not any other combination of 'y' and a consonant, like 'yd'.

A couple tests are added to break the overly-specific implementations.

The following implmentation passes the new version of the tests:

http://exercism.io/submissions/2ec927894ece47baa8fe482f9f210a63
---
 exercises/pig-latin/pig_latin_test.exs | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/exercises/pig-latin/pig_latin_test.exs b/exercises/pig-latin/pig_latin_test.exs
index 5bb6c45d1d..bfdaeaae2e 100644
--- a/exercises/pig-latin/pig_latin_test.exs
+++ b/exercises/pig-latin/pig_latin_test.exs
@@ -63,7 +63,7 @@ defmodule PigLatinTest do
 
     @tag :pending
     test "word beginning with q without a following u" do
-      assert PigLatin.translate("qat") == "atqay"
+      assert PigLatin.translate("qatar") == "atarqay"
     end
 
     @tag :pending
@@ -82,7 +82,7 @@ defmodule PigLatinTest do
     end
   end
 
-  describe "some letter clusters are treated like a single consonant" do
+  describe "consecutive consonants are treated like a single consonant" do
     @tag :pending
     test "word beginning with ch" do
       assert PigLatin.translate("chair") == "airchay"
@@ -114,16 +114,26 @@ defmodule PigLatinTest do
     end
   end
 
-  describe "some letter clusters are treated like a single vowel" do
+  describe "'x' and 'y', when followed by a consonant, are treated like a vowel" do
     @tag :pending
-    test "word beginning with yt" do
+    test "word beginning with y, followed by a consonant" do
       assert PigLatin.translate("yttria") == "yttriaay"
     end
 
+    @tag :pending
+    test "word beginning with y, followed by another consonant" do
+      assert PigLatin.translate("yddria") == "yddriaay"
+    end
+
     @tag :pending
     test "word beginning with xr" do
       assert PigLatin.translate("xray") == "xrayay"
     end
+
+    @tag :pending
+    test "word beginning with xb" do
+      assert PigLatin.translate("xbot") == "xbotay"
+    end
   end
 
   describe "phrases are translated" do
@@ -133,4 +143,3 @@ defmodule PigLatinTest do
     end
   end
 end
-

From 62b4be4e23903126126e0f377ebca6a99aed3ddc Mon Sep 17 00:00:00 2001
From: Moxley Stratton <mstratton@weedmaps.com>
Date: Fri, 9 Feb 2018 16:22:45 -0800
Subject: [PATCH 2/3] Revert 'qat' test change

---
 exercises/pig-latin/pig_latin_test.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exercises/pig-latin/pig_latin_test.exs b/exercises/pig-latin/pig_latin_test.exs
index bfdaeaae2e..9034c528d2 100644
--- a/exercises/pig-latin/pig_latin_test.exs
+++ b/exercises/pig-latin/pig_latin_test.exs
@@ -63,7 +63,7 @@ defmodule PigLatinTest do
 
     @tag :pending
     test "word beginning with q without a following u" do
-      assert PigLatin.translate("qatar") == "atarqay"
+      assert PigLatin.translate("qat") == "atqay"
     end
 
     @tag :pending

From d6c2dde81037d8f5feed062949fbc5afe7715355 Mon Sep 17 00:00:00 2001
From: Moxley Stratton <mstratton@weedmaps.com>
Date: Mon, 12 Feb 2018 06:49:21 -0800
Subject: [PATCH 3/3] Make example.exs test pass

---
 exercises/pig-latin/example.exs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/exercises/pig-latin/example.exs b/exercises/pig-latin/example.exs
index b0a670c9f4..d47f3083d0 100644
--- a/exercises/pig-latin/example.exs
+++ b/exercises/pig-latin/example.exs
@@ -32,7 +32,7 @@ defmodule PigLatin do
   end
 
   defp consonant_prefix_and_rest(word) do
-    if Regex.match?(~r/^yt|xr/, word) do
+    if Regex.match?(~r/^[yx][bcdfghjklmnpqrstvwxy]+/, word) do
       ["", word]
     else
       ~r/^(s?qu|(?:[^aeiou]*))?([aeiou].*)$/
@@ -40,4 +40,3 @@ defmodule PigLatin do
     end
   end
 end
-