Trying to fix unit tests

Author: Matthias Koefferlein

testdata/ruby/dbLibrary.rb

@@ -121,6 +121,12 @@ def test_3_layout
 
   def test_4_library_registration_and_rename
 
+    # clean up before
+    [ "RBA-unit-test", "RBA-unit-test2" ].each do |name|
+      l = RBA::Library::library_by_name(name)
+      l && l.unregister
+    end
+
     lib = RBA::Library::new
     lib.description = "LIB1"
     lib.delete
@@ -159,6 +165,12 @@ def test_4_library_registration_and_rename
 
   def test_5_reload
 
+    # clean up before
+    [ "RBA-unit-test", "RBA-unit-test2" ].each do |name|
+      l = RBA::Library::library_by_name(name)
+      l && l.unregister
+    end
+
     lib = MyLibImpl::new
     lib.description = "LIB1"
     lib.register("RBA-unit-test")
@@ -178,6 +190,12 @@ def test_5_reload
 
   def test_6_cells_become_defunct_after_unregister
 
+    # clean up before
+    [ "RBA-unit-test", "RBA-unit-test2" ].each do |name|
+      l = RBA::Library::library_by_name(name)
+      l && l.unregister
+    end
+
     lib = RBA::Library::new
     lib.description = "LIB1"
     lib.register("RBA-unit-test")
@@ -209,6 +227,12 @@ def test_6_cells_become_defunct_after_unregister
 
   def test_7_change_ref
 
+    # clean up before
+    [ "RBA-unit-test", "RBA-unit-test2" ].each do |name|
+      l = RBA::Library::library_by_name(name)
+      l && l.unregister
+    end
+
     lib = RBA::Library::new
     lib.description = "LIB1"
     lib.register("RBA-unit-test")