bimtester: se gettext for message translation

src/ifcbimtester/bimtester/features/steps/ifcdata.py

@@ -1,7 +1,9 @@
+import gettext
 from behave import step
 
-from utils import assert_schema
+from ifcdata_methods import assert_schema
 from utils import IfcFile
+from utils import switch_locale
 
 
 @step('The IFC file "{file}" must be provided')
@@ -14,8 +16,8 @@ def step_impl(context, file):
 
 @step("IFC data must use the {schema} schema")
 def step_impl(context, schema):
-    context.schema = IfcFile.get().schema
-    assert_schema(schema, context.schema)
+    switch_locale(context.localedir, "en")
+    assert_schema(context, schema)
     
 
 @step('The IFC file "{file}" is exempt from being provided')

src/ifcbimtester/bimtester/features/steps/ifcdata_de.py

@@ -1,19 +1,9 @@
 from behave import step
 
-from utils import assert_schema
-
-
-# https://behave.readthedocs.io/en/latest/api.html#step-macro-calling-steps-from-other-steps
-# https://stackoverflow.com/questions/46735425/how-to-only-show-failing-tests-from-behave
-# https://community.osarch.org/discussion/comment/4533/#Comment_4533
+from ifcdata_methods import assert_schema
+from utils import switch_locale
 
 @step("Die IFC Daten müssen das {schema} Schema benutzen")
 def step_impl(context, schema):
-    try:
-        context.execute_steps(
-            "* IFC data must use the {schema} schema".format(schema=schema)
-        )
-    except Exception:
-        assert_schema(schema, context.schema)
-        # TODO translate error
-        # "Wir haben ein Schema {} erwartet, aber die Daten sind Schema (}"
+    switch_locale(context.localedir, "de")
+    assert_schema(context, schema)

src/ifcbimtester/bimtester/features/steps/ifcdata_fr.py

@@ -1,13 +1,9 @@
 from behave import step
 
-from utils import assert_schema
-
+from ifcdata_methods import assert_schema
+from utils import switch_locale
 
 @step("Les données IFC doivent utiliser le schéma {schema}")
 def step_impl(context, schema):
-    try:
-        context.execute_steps(
-            "* IFC data must use the {schema} schema".format(schema=schema)
-        )
-    except Exception:
-        assert_schema(schema, context.schema)
+    switch_locale(context.localedir, "fr")
+    assert_schema(context, schema)

src/ifcbimtester/bimtester/features/steps/ifcdata_methods.py

@@ -0,0 +1,9 @@
+from utils import IfcFile
+
+
+def assert_schema(context, target_schema):
+    real_schema = IfcFile.get().schema
+    assert real_schema == target_schema, (
+        _("We expected a schema of {} but instead got {}")
+        .format(target_schema, real_schema)
+    )

src/ifcbimtester/bimtester/features/steps/utils.py

@@ -80,8 +80,11 @@ def assert_pset(element, pset_name, prop_name=None, value=None):
     )
 
 
-def assert_schema(real_schema, target_schema):
-    assert real_schema == target_schema, (
-        "We expected a schema of {} but instead got {}"
-        .format(target_schema, real_schema)
+def switch_locale(locale_dir, locale_id="en"):
+    from gettext import translation
+    newlang = translation(
+        "messages",
+        localedir=locale_dir,
+        languages=[locale_id]
     )
+    newlang.install()