#19 Add JoinerTests

Author: jxcoder

test/cls/DeclarativeCOS.JoinerTests.cls

@@ -0,0 +1,15 @@
+Class DeclarativeCOS.JoinerTests Extends %UnitTest.TestCase
+{
+
+Method TestJoin()
+{
+    set words = ##class(%ListOfDataTypes).%New()
+    do words.Insert("DeclarativeCOS")
+    do words.Insert("is")
+    do words.Insert("awesome!")
+
+    do $$$AssertEquals("DeclarativeCOS is awesome!", $zjoin(words, " "), "$zjoin must concatenate collection using separator")
+}
+
+}
+