Add 'direct' keyword to descendants option to query direct children (ep1)

-added 'direct' keyword also to Fetch Descendants Option along with 'all' and 'none' to Query direct child.
-added unit tests to test direct keyword

Issue-ID:CPS-1784
Change-Id: Iab7f59fbeebb03703626132c6d5c2afde0e5ab4d
Signed-off-by: Rudrangi Anupriya <ra00745022@techmahindra.com>

2 files changed, 4 insertions, 2 deletions

diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsQueryServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsQueryServiceImplSpec.groovy
index 553027a4b..4e3d27964 100644
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsQueryServiceImplSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsQueryServiceImplSpec.groovy
@@ -45,7 +45,7 @@ class CpsQueryServiceImplSpec extends Specification {
             1 * mockCpsValidator.validateNameCharacters(dataspaceName, anchorName)
         where: 'all fetch descendants options are supported'
             fetchDescendantsOption << [FetchDescendantsOption.OMIT_DESCENDANTS, FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS,
-                                       FetchDescendantsOption.DIRECT_CHILDREN_ONLY, new FetchDescendantsOption(10)]
+                                       FetchDescendantsOption.DIRECT_CHILD_ONLY, new FetchDescendantsOption(10)]
     }
 
     def 'Query data nodes across all anchors by cps path with #fetchDescendantsOption.'() {
diff --git a/cps-service/src/test/groovy/org/onap/cps/spi/FetchDescendantsOptionSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/spi/FetchDescendantsOptionSpec.groovy
index 24f3487d1..b095bfd3d 100644
--- a/cps-service/src/test/groovy/org/onap/cps/spi/FetchDescendantsOptionSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/spi/FetchDescendantsOptionSpec.groovy
@@ -85,6 +85,8 @@ class FetchDescendantsOptionSpec extends Specification {
             'all descendants using all'         | 'all'                          || -1
             'No descendants by default'         | ''                             || 0
             'No descendants using none'         | 'none'                         || 0
+            'direct child using number'         | '1'                            || 1
+            'direct child using direct'         | 'direct'                       || 1
             'til 10th descendants using number' | '10'                           || 10
     }
 
@@ -94,7 +96,7 @@ class FetchDescendantsOptionSpec extends Specification {
         where: 'the following option is used'
             fetchDescendantsOption                         || expectedStringValue
             FetchDescendantsOption.OMIT_DESCENDANTS        || 'OmitDescendants'
-            FetchDescendantsOption.DIRECT_CHILDREN_ONLY    || 'DirectChildrenOnly'
+            FetchDescendantsOption.DIRECT_CHILD_ONLY       || 'DirectChildOnly'
             FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS || 'IncludeAllDescendants'
             new FetchDescendantsOption(2)                  || 'Depth=2'
     }