Added unit test for getBuildIdFromTest (TriBITSPub#600)

Add a set of unit tests for getBuildIdFromTest helper function from
cdash_analyze_and_report_random_failure.py

test/ci_support/cdash_analyze_and_report_random_failures_UnitTests.py

@@ -45,6 +45,7 @@
 
 from FindCISupportDir import *
 import CDashQueryAnalyzeReport as CDQAR
+from cdash_analyze_and_report_random_failures import *
 from CDashQueryAnalyzeReportUnitTestHelpers import *
 
 # Base test directory in the build tree
@@ -101,8 +102,39 @@ def __enter__(self):
     def __exit__(self, exc_type, exc_val, exc_tb):
         self.remove()
 
+#############################################################################
+#
+# Unit tests for cdash_analyze_and_report_random_failures.py
+#
+#############################################################################
+
+
+class test_getBuildIdFromTest(unittest.TestCase):
+
+    def test_single_slash(self):
+        test_dict = { 'buildSummaryLink':'build/somenumber' }
+        self.assertEqual(
+            getBuildIdFromTest(test_dict), 'somenumber')
+
+    def test_multiple_slash(self):
+        test_dict = { 'buildSummaryLink':'build/path/temp/somenumber' }
+        self.assertEqual(
+            getBuildIdFromTest(test_dict), 'somenumber')
+
+    def test_no_slash(self):
+        test_dict = { 'buildSummaryLink':'buildid' }
+        self.assertEqual(
+            getBuildIdFromTest(test_dict), 'buildid')
+
+
+#############################################################################
+#
+# System-level tests for cdash_analyze_and_report_random_failures.py
+#
+#############################################################################
+
 
-class test_cdash_analyze_and_report(unittest.TestCase):
+class test_cdash_analyze_and_report_random_failures(unittest.TestCase):
     def cdash_analyze_and_report_run_case(
         self,
         expectedRtnCode,