Added linting tests for namespaces

Signed-off-by: Ole Herman Schumacher Elgesem <ole@northern.tech>

Author: olehermanse

tests/lint/008_namespace.cf

@@ -0,0 +1,16 @@
+body file control
+{
+  namespace => "mylib";
+}
+
+bundle agent target(a)
+{
+  reports:
+    "Hello, $(a)";
+}
+
+bundle agent helper
+{
+  vars:
+    "x" string => mylib:target("arg");
+}

tests/lint/008_namespace.output.txt

@@ -0,0 +1,7 @@
+
+  vars:
+    "x" string => default:target("arg");
+                  ^------------^
+Error: Call to unknown function / bundle / body 'default:target' at at tests/lint/008_namespace.x.cf:15:19
+FAIL: tests/lint/008_namespace.x.cf (1 errors)
+Failure, 1 errors in total.

tests/lint/008_namespace.x.cf

@@ -0,0 +1,16 @@
+body file control
+{
+  namespace => "mylib";
+}
+
+bundle agent target(a)
+{
+  reports:
+    "Hello, $(a)";
+}
+
+bundle agent helper
+{
+  vars:
+    "x" string => default:target("arg");
+}