Add scala tests to travis

.travis.yml

@@ -13,4 +13,5 @@ script:
   - './test/rust/check-exercises.sh'
   - './test/python/check-exercises.py'
   - './test/erlang/check-exercises.sh'
+  - './test/scala/check-exercises.sh'
   - "! git grep ' $' -- \\*.rb | grep -v 'assignments/ruby/ocr-numbers/ocr-numbers_test.rb'"

test/scala/check-exercises.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+set -e
+tmp=${TMPDIR:-/tmp/}
+check_assignment () {
+  testfile="$1"
+  testfilename=${testfile##*/}
+  assignmentdir=${testfile%/src/test/scala*}
+  workdir=$(mktemp -d "${tmp}${testfilename}.XXXXXXXXXX")
+  mkdir -p "${workdir}/src/main/scala"
+  mkdir -p "${workdir}/src/test/scala"
+  cp "${assignmentdir}/build.sbt" "${workdir}/build.sbt"
+  cp "${assignmentdir}/example.scala" "${workdir}/src/main/scala/"
+  grep -v '^\s\+pending' "${testfile}" > "${workdir}/src/test/scala/${testfilename}"
+  (
+    cd "${workdir}"
+    sbt test
+  )
+  status=$?
+  rm -rf "${workdir}"
+  return $status
+}
+
+failures=()
+for assignment in assignments/scala/*/src/test/scala/*.scala; do
+  (check_assignment "${assignment}")
+  if [ $? -ne 0 ]; then
+    echo "check failed"
+    failures=(${failures[@]} $assignment)
+  fi
+done
+if [ "${#failures[*]}" -eq "0" ]; then
+  echo "SUCCESS!"
+else
+  output=$(printf ", %s" "${failures[@]}")
+  echo "FAILURES: ${output:2}"
+  exit 1
+fi