Merge pull request #477 from YosysHQ/pybind11

Move to pybind11

1 files changed, 150 insertions, 0 deletions

diff --git a/3rdparty/pybind11/tests/test_exceptions.py b/3rdparty/pybind11/tests/test_exceptions.py
new file mode 100644
index 00000000..ac2b3603
--- /dev/null
+++ b/3rdparty/pybind11/tests/test_exceptions.py
@@ -0,0 +1,150 @@
+import pytest
+
+from pybind11_tests import exceptions as m
+import pybind11_cross_module_tests as cm
+
+
+def test_std_exception(msg):
+    with pytest.raises(RuntimeError) as excinfo:
+        m.throw_std_exception()
+    assert msg(excinfo.value) == "This exception was intentionally thrown."
+
+
+def test_error_already_set(msg):
+    with pytest.raises(RuntimeError) as excinfo:
+        m.throw_already_set(False)
+    assert msg(excinfo.value) == "Unknown internal error occurred"
+
+    with pytest.raises(ValueError) as excinfo:
+        m.throw_already_set(True)
+    assert msg(excinfo.value) == "foo"
+
+
+def test_cross_module_exceptions():
+    with pytest.raises(RuntimeError) as excinfo:
+        cm.raise_runtime_error()
+    assert str(excinfo.value) == "My runtime error"
+
+    with pytest.raises(ValueError) as excinfo:
+        cm.raise_value_error()
+    assert str(excinfo.value) == "My value error"
+
+    with pytest.raises(ValueError) as excinfo:
+        cm.throw_pybind_value_error()
+    assert str(excinfo.value) == "pybind11 value error"
+
+    with pytest.raises(TypeError) as excinfo:
+        cm.throw_pybind_type_error()
+    assert str(excinfo.value) == "pybind11 type error"
+
+    with pytest.raises(StopIteration) as excinfo:
+        cm.throw_stop_iteration()
+
+
+def test_python_call_in_catch():
+    d = {}
+    assert m.python_call_in_destructor(d) is True
+    assert d["good"] is True
+
+
+def test_exception_matches():
+    assert m.exception_matches()
+    assert m.exception_matches_base()
+    assert m.modulenotfound_exception_matches_base()
+
+
+def test_custom(msg):
+    # Can we catch a MyException?
+    with pytest.raises(m.MyException) as excinfo:
+        m.throws1()
+    assert msg(excinfo.value) == "this error should go to a custom type"
+
+    # Can we translate to standard Python exceptions?
+    with pytest.raises(RuntimeError) as excinfo:
+        m.throws2()
+    assert msg(excinfo.value) == "this error should go to a standard Python exception"
+
+    # Can we handle unknown exceptions?
+    with pytest.raises(RuntimeError) as excinfo:
+        m.throws3()
+    assert msg(excinfo.value) == "Caught an unknown exception!"
+
+    # Can we delegate to another handler by rethrowing?
+    with pytest.raises(m.MyException) as excinfo:
+        m.throws4()
+    assert msg(excinfo.value) == "this error is rethrown"
+
+    # Can we fall-through to the default handler?
+    with pytest.raises(RuntimeError) as excinfo:
+        m.throws_logic_error()
+    assert msg(excinfo.value) == "this error should fall through to the standard handler"
+
+    # OverFlow error translation.
+    with pytest.raises(OverflowError) as excinfo:
+        m.throws_overflow_error()
+
+    # Can we handle a helper-declared exception?
+    with pytest.raises(m.MyException5) as excinfo:
+        m.throws5()
+    assert msg(excinfo.value) == "this is a helper-defined translated exception"
+
+    # Exception subclassing:
+    with pytest.raises(m.MyException5) as excinfo:
+        m.throws5_1()
+    assert msg(excinfo.value) == "MyException5 subclass"
+    assert isinstance(excinfo.value, m.MyException5_1)
+
+    with pytest.raises(m.MyException5_1) as excinfo:
+        m.throws5_1()
+    assert msg(excinfo.value) == "MyException5 subclass"
+
+    with pytest.raises(m.MyException5) as excinfo:
+        try:
+            m.throws5()
+        except m.MyException5_1:
+            raise RuntimeError("Exception error: caught child from parent")
+    assert msg(excinfo.value) == "this is a helper-defined translated exception"
+
+
+def test_nested_throws(capture):
+    """Tests nested (e.g. C++ -> Python -> C++) exception handling"""
+
+    def throw_myex():
+        raise m.MyException("nested error")
+
+    def throw_myex5():
+        raise m.MyException5("nested error 5")
+
+    # In the comments below, the exception is caught in the first step, thrown in the last step
+
+    # C++ -> Python
+    with capture:
+        m.try_catch(m.MyException5, throw_myex5)
+    assert str(capture).startswith("MyException5: nested error 5")
+
+    # Python -> C++ -> Python
+    with pytest.raises(m.MyException) as excinfo:
+        m.try_catch(m.MyException5, throw_myex)
+    assert str(excinfo.value) == "nested error"
+
+    def pycatch(exctype, f, *args):
+        try:
+            f(*args)
+        except m.MyException as e:
+            print(e)
+
+    # C++ -> Python -> C++ -> Python
+    with capture:
+        m.try_catch(
+            m.MyException5, pycatch, m.MyException, m.try_catch, m.MyException, throw_myex5)
+    assert str(capture).startswith("MyException5: nested error 5")
+
+    # C++ -> Python -> C++
+    with capture:
+        m.try_catch(m.MyException, pycatch, m.MyException5, m.throws4)
+    assert capture == "this error is rethrown"
+
+    # Python -> C++ -> Python -> C++
+    with pytest.raises(m.MyException5) as excinfo:
+        m.try_catch(m.MyException, pycatch, m.MyException, m.throws5)
+    assert str(excinfo.value) == "this is a helper-defined translated exception"