add WString tests

Signed-off-by: Dirk Thomas <dirk-thomas@users.noreply.github.com>

rosidl_generator_py/CMakeLists.txt

@@ -43,6 +43,7 @@ if(BUILD_TESTING)
     #"msg/Uint64.msg"
     #"msg/Uint8.msg"
     "msg/Various.msg"
+    "msg/WStrings.msg"
   )
 
   include(cmake/register_py.cmake)

rosidl_generator_py/test/test_interfaces.py

@@ -22,6 +22,7 @@
 from rosidl_generator_py.msg import StringArrays
 from rosidl_generator_py.msg import Strings
 from rosidl_generator_py.msg import Various
+from rosidl_generator_py.msg import WStrings
 
 
 def test_strings():
@@ -31,6 +32,13 @@ def test_strings():
     assert 'Hello world!' == a.def_string
 
 
+def test_wstrings():
+    a = WStrings()
+
+    assert '' == a.empty_wstring
+    assert 'Hello world!' == a.def_wstring
+
+
 def test_arrays_of_bounded_strings():
     a = StringArrays()
     array_valid_string_length = ['a' * 2, 'b' * 3, 'c' * 4]
@@ -123,6 +131,21 @@ def test_default_values():
     with pytest.raises(AttributeError):
         setattr(Strings, 'DEF_STRING__DEFAULT', 'bar')
 
+    a = WStrings()
+    assert '' == a.empty_wstring
+    assert 'Hello world!' == a.def_wstring
+    a.def_wstring = 'Bye world'
+    assert 'Bye world' == a.def_wstring
+    assert 'Hello world!' == WStrings.DEF_WSTRING__DEFAULT
+    assert 'Hello world!' == a.DEF_WSTRING__DEFAULT
+
+    assert "Hello'world!" == a.DEF_WSTRING2__DEFAULT
+    assert 'Hello"world!' == a.DEF_WSTRING3__DEFAULT
+    assert "Hello'world!" == a.DEF_WSTRING4__DEFAULT
+    assert 'Hello"world!' == a.DEF_WSTRING5__DEFAULT
+    with pytest.raises(AttributeError):
+        setattr(WStrings, 'DEF_WSTRING__DEFAULT', 'bar')
+
     b = StringArrays()
     assert ['What', 'a', 'wonderful', 'world', '!'] == b.DEF_STRING_DYNAMIC_ARRAY_VALUE__DEFAULT
     assert ['Hello', 'World', '!'] == b.DEF_STRING_STATIC_ARRAY_VALUE__DEFAULT