gras: property tweaks and c++ unit tests

1 files changed, 66 insertions, 0 deletions

diff --git a/tests/block_props_test.cpp b/tests/block_props_test.cpp
new file mode 100644
index 0000000..ded4273
--- /dev/null
+++ b/tests/block_props_test.cpp
@@ -0,0 +1,66 @@
+// Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
+
+#include <boost/test/unit_test.hpp>
+#include <iostream>
+
+#include <gras/block.hpp>
+
+struct MyBlock : gras::Block
+{
+    MyBlock(void):
+        gras::Block("MyBlock")
+    {
+        foo = 0;
+        this->register_property("foo", &MyBlock::get_foo, &MyBlock::set_foo);
+    }
+
+    //dummy work
+    void work(const InputItems &, const OutputItems &){}
+
+    size_t get_foo(void)
+    {
+        return foo;
+    }
+
+    void set_foo(const size_t &new_foo)
+    {
+        foo = new_foo;
+    }
+
+    size_t foo;
+};
+
+BOOST_AUTO_TEST_CASE(test_property_set_get_with_return)
+{
+    MyBlock my_block;
+    BOOST_CHECK_EQUAL(my_block.foo, size_t(0));
+
+    my_block.set("foo", size_t(42));
+    BOOST_CHECK_EQUAL(my_block.foo, size_t(42));
+
+    const size_t my_foo = my_block.get<size_t>("foo");
+    BOOST_CHECK_EQUAL(my_foo, size_t(42));
+}
+
+BOOST_AUTO_TEST_CASE(test_property_set_get_with_reference)
+{
+    MyBlock my_block;
+    BOOST_CHECK_EQUAL(my_block.foo, size_t(0));
+
+    my_block.set("foo", size_t(42));
+    BOOST_CHECK_EQUAL(my_block.foo, size_t(42));
+
+    size_t my_foo; my_block.get("foo", my_foo);
+    BOOST_CHECK_EQUAL(my_foo, size_t(42));
+}
+
+BOOST_AUTO_TEST_CASE(test_property_errors)
+{
+    MyBlock my_block;
+
+    //property does not exist
+    BOOST_CHECK_THROW(my_block.get<size_t>("bar"), std::exception);
+
+    //wrong type for property
+    BOOST_CHECK_THROW(my_block.set("foo", double(42)), std::exception);
+}