Overwrite wsk config file to prevent polution from .wskprops.
Remove default namespace from names in sequence test to test implicit default package.
diff --git a/tests/src/common/Wsk.scala b/tests/src/common/Wsk.scala
index 2d55386..8ea9fa2 100644
--- a/tests/src/common/Wsk.scala
+++ b/tests/src/common/Wsk.scala
@@ -803,7 +803,7 @@
     def cli(params: Seq[String],
             expectedExitCode: Int = SUCCESS_EXIT,
             verbose: Boolean = false,
-            env: Map[String, String] = Map[String, String](),
+            env: Map[String, String] = Map("WSK_CONFIG_FILE" -> ""),
             workingDir: File = new File("."),
             showCmd: Boolean = false): RunResult = {
         val args = baseCommand
diff --git a/tests/src/system/basic/WskSequenceTests.scala b/tests/src/system/basic/WskSequenceTests.scala
index a2c85e8..c46717d 100644
--- a/tests/src/system/basic/WskSequenceTests.scala
+++ b/tests/src/system/basic/WskSequenceTests.scala
@@ -270,8 +270,8 @@
 
     it should "run a sequence with an action in a package binding with parameters" in withAssetCleaner(wskprops) {
         (wp, assetHelper) =>
-            val packageName = s"/$defaultNamespace/package1"
-            val bindName = s"/$defaultNamespace/package2"
+            val packageName = "package1"
+            val bindName = "package2"
             val actionName = "print"
             val packageActionName = packageName + "/" + actionName
             val bindActionName = bindName + "/" + actionName