Fixes for travis build. (#460)

1. fix pip install
2. fix for gradle5

Co-authored-by: Chetan Mehrotra <chetanm@apache.org>

Author: 2 people

.travis.yml

@@ -21,9 +21,9 @@ matrix:
   include:
     - os: linux
       sudo: required
-      group: deprecated-2017Q3
       go: "1.9.3"
       services: docker
+      dist: xenial
 
 env:
   global:
@@ -47,7 +47,7 @@ before_install:
 
 install:
   - cd $TRAVIS_BUILD_DIR/..
-  - pip install --upgrade pip setuptools
+  - pip install --user --upgrade pip setuptools
 
 before_script:
   - cd $TRAVIS_BUILD_DIR

tests/src/test/scala/system/basic/WskCliBasicTests.scala

@@ -874,7 +874,7 @@ class WskCliBasicTests extends TestHelpers with WskTestHelpers {
   behavior of "Wsk Namespace CLI"
 
   def WskNsCLI_RetListOneNs_test(wsk: Wsk, wp: WskProps): Unit = {
-    val lines = wsk.namespace.list()(wp).stdout.lines.toSeq
+    val lines = wsk.namespace.list()(wp).stdout.linesIterator.toSeq
     lines should have size 2
     lines.head shouldBe "namespaces"
     lines(1).trim should not be empty

tools/travis/test_openwhisk.sh

@@ -98,13 +98,13 @@ $ANSIBLE_CMD routemgmt.yml
 
 #  Run the test cases under openwhisk to ensure the quality of the runnint API.
 cd $TRAVIS_BUILD_DIR
-./gradlew --console=plain :tests:test -Dtest.single=*ApiGwCliTests*
+./gradlew --console=plain :tests:test --tests=*ApiGwCliTests*
 sleep 30
-./gradlew --console=plain :tests:test -Dtest.single=*ApiGwCliRoutemgmtActionTests*
+./gradlew --console=plain :tests:test --tests=*ApiGwCliRoutemgmtActionTests*
 sleep 30
-./gradlew --console=plain :tests:test -Dtest.single=*ApiGwCliEndToEndTests*
+./gradlew --console=plain :tests:test --tests=*ApiGwCliEndToEndTests*
 sleep 30
-./gradlew --console=plain :tests:test -Dtest.single=*Wsk*Tests*
+./gradlew --console=plain :tests:test --tests=*Wsk*Tests*
 
 #
 #  Finally, run the integration test for the CLI