gras: created element factory

2 files changed, 78 insertions, 0 deletions

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index bb3f3c8..62cf7d8 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -17,6 +17,7 @@ set(test_sources
     callable_test.cpp
     chrono_time_test.cpp
     block_props_test.cpp
+    factory_test.cpp
     serialize_tags_test.cpp
 )
 
diff --git a/tests/factory_test.cpp b/tests/factory_test.cpp
new file mode 100644
index 0000000..00239f9
--- /dev/null
+++ b/tests/factory_test.cpp
@@ -0,0 +1,77 @@
+// 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(const long &a0 = 0, const std::string &a1 = "", const bool &a2 = false):
+        gras::Block("MyBlock"), a0(a0), a1(a1), a2(a2)
+    {
+    }
+
+    const long a0;
+    const std::string a1;
+    const bool a2;
+
+    //dummy work
+    void work(const InputItems &, const OutputItems &){}
+};
+
+// a few test factory functions
+
+gras::Block *make_my_block_args0(void)
+{
+    return new MyBlock();
+}
+
+gras::Block *make_my_block_args1(const long &a0)
+{
+    return new MyBlock(a0);
+}
+
+gras::Block *make_my_block_args2(const long &a0, const std::string &a1)
+{
+    return new MyBlock(a0, a1);
+}
+
+gras::Block *make_my_block_args3(const long &a0, const std::string &a1, const bool &a2)
+{
+    return new MyBlock(a0, a1, a2);
+}
+
+#include <gras/factory.hpp>
+
+GRAS_REGISTER_FACTORY(make_my_block_args0)
+GRAS_REGISTER_FACTORY(make_my_block_args1)
+GRAS_REGISTER_FACTORY(make_my_block_args2)
+GRAS_REGISTER_FACTORY(make_my_block_args3)
+
+BOOST_AUTO_TEST_CASE(test_register_and_make)
+{
+    gras::Element *my_block0 = gras::Factory::make("make_my_block_args0");
+    BOOST_CHECK(dynamic_cast<MyBlock *>(my_block0) != NULL);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block0)->a0, 0);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block0)->a1, "");
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block0)->a2, false);
+
+    gras::Element *my_block1 = gras::Factory::make("make_my_block_args1", 42);
+    BOOST_CHECK(dynamic_cast<MyBlock *>(my_block1) != NULL);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block1)->a0, 42);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block1)->a1, "");
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block1)->a2, false);
+
+    gras::Element *my_block2 = gras::Factory::make("make_my_block_args2", 1, "foo");
+    BOOST_CHECK(dynamic_cast<MyBlock *>(my_block2) != NULL);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block2)->a0, 1);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block2)->a1, "foo");
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block2)->a2, false);
+
+    gras::Element *my_block3 = gras::Factory::make("make_my_block_args3", -2, "bar", true);
+    BOOST_CHECK(dynamic_cast<MyBlock *>(my_block3) != NULL);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block3)->a0, -2);
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block3)->a1, "bar");
+    BOOST_CHECK_EQUAL(dynamic_cast<MyBlock *>(my_block3)->a2, true);
+}