Merge pull request exercism#599 from ricemery/binary-search

Upday binary-search exeprcise to match latest test data. Refs exercism#488

exercises/binary-search/src/test/scala/BinarySearchTest.scala

@@ -1,54 +1,61 @@
 import org.scalatest.{Matchers, FunSuite}
 
-/** @version 1.1.0 */
+/** @version 1.3.0 */
 class BinarySearchTest extends FunSuite with Matchers {
-  
+
   test("finds a value in an array with one element") {
-    BinarySearch.find(List(6), 6) should be (Some(0))
+    BinarySearch.find(List(6), 6) should be(Some(0))
   }
 
   test("finds a value in the middle of an array") {
     pending
-    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 6) should be (Some(3))
+    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 6) should be(Some(3))
   }
 
   test("finds a value at the beginning of an array") {
     pending
-    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 1) should be (Some(0))
+    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 1) should be(Some(0))
   }
 
   test("finds a value at the end of an array") {
     pending
-    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 11) should be (Some(6))
+    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 11) should be(Some(6))
   }
 
   test("finds a value in an array of odd length") {
     pending
-    BinarySearch.find(List(1, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 634), 144) should be (Some(9))
+    BinarySearch.find(List(1, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 634),
+                      144) should be(Some(9))
   }
 
   test("finds a value in an array of even length") {
     pending
-    BinarySearch.find(List(1, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377), 21) should be (Some(5))
+    BinarySearch.find(List(1, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377), 21) should be(
+      Some(5))
   }
 
   test("identifies that a value is not included in the array") {
     pending
-    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 7) should be (None)
+    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 7) should be(None)
+  }
+
+  test("a value smaller than the array's smallest value is not found") {
+    pending
+    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 0) should be(None)
   }
 
-  test("a value smaller than the array's smallest value is not included") {
+  test("a value larger than the array's largest value is not found") {
     pending
-    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 0) should be (None)
+    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 13) should be(None)
   }
 
-  test("a value larger than the array's largest value is not included") {
+  test("nothing is found in an empty array") {
     pending
-    BinarySearch.find(List(1, 3, 4, 6, 8, 9, 11), 13) should be (None)
+    BinarySearch.find(List(), 1) should be(None)
   }
 
-  test("nothing is included in an empty array") {
+  test("nothing is found when the left and right bounds cross") {
     pending
-    BinarySearch.find(List(), 1) should be (None)
+    BinarySearch.find(List(1, 2), 0) should be(None)
   }
 }