Kvp-Frame test cases

Adding google tests for many of Kvp Frame's member functions. One
function in KvpFrameImpl, for_each_slot, should probably be something
like

template <typename T> void
for_each_slot (T & t, void * data) const
{
    std::for_each(......
    [&t, data] (... a)
    {
        t(a, data);
    }
}

This way, we could create a functor mock object for testing purposes,
but of course, pointers would still behave correctly.

src/libqof/qof/test/Makefile.am

@@ -70,7 +70,9 @@ if WITH_GOOGLE_TEST
 test_kvp_value_SOURCES = \
     $(top_srcdir)/$(MODULEPATH)/kvp-value.cpp \
     $(GTEST_ROOT)/src/gtest_main.cc \
-	test-kvp-value.cpp
+    test-kvp-value.cpp \
+    test-kvp-frame.cpp
+
 test_kvp_value_LDADD = \
 	$(top_builddir)/$(MODULEPATH)/libgnc-qof.la \
     $(top_builddir)/src/test-core/libgtest.a \
@@ -80,7 +82,7 @@ test_kvp_value_CPPFLAGS = \
     -I$(GTEST_HEADERS) \
     -I$(top_srcdir)/$(MODULEPATH) \
     $(BOOST_CPPFLAGS) \
-    $(GLIB_CFLAGS) 
+    $(GLIB_CFLAGS)
 
 check_PROGRAMS += test_kvp_value
 

src/libqof/qof/test/test-kvp-frame.cpp

@@ -0,0 +1,90 @@
+/********************************************************************
+ * test-kvp-frame.cpp: A Google Test suite for kvp-frame impl.      *
+ * Copyright 2014 Aaron Laws <dartme18@gmail.com>                   *
+ *                                                                  *
+ * This program is free software; you can redistribute it and/or    *
+ * modify it under the terms of the GNU General Public License as   *
+ * published by the Free Software Foundation; either version 2 of   *
+ * the License, or (at your option) any later version.              *
+ *                                                                  *
+ * This program is distributed in the hope that it will be useful,  *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of   *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    *
+ * GNU General Public License for more details.                     *
+ *                                                                  *
+ * You should have received a copy of the GNU General Public License*
+ * along with this program; if not, you can retrieve it from        *
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html            *
+ * or contact:                                                      *
+ *                                                                  *
+ * Free Software Foundation           Voice:  +1-617-542-5942       *
+ * 51 Franklin Street, Fifth Floor    Fax:    +1-617-542-2652       *
+ * Boston, MA  02110-1301,  USA       gnu@gnu.org                   *
+ ********************************************************************/
+
+#include "../kvp-value.hpp"
+#include "../kvp_frame.hpp"
+#include <gtest/gtest.h>
+#include <algorithm>
+
+template <typename A, typename B> void
+assert_contains (std::vector<A> vec, B const & b)
+{
+    auto val = std::find (vec.begin (), vec.end (), b);
+    EXPECT_NE (val, vec.end ());
+}
+
+TEST (KvpFrameTest, Replace)
+{
+    auto f1 = new KvpFrameImpl;
+    auto v1 = new KvpValueImpl {15.0};
+    auto v2 = new KvpValueImpl { (int64_t)52};
+    std::string k1 {"first key"};
+
+    EXPECT_EQ (nullptr, f1->replace_nc (k1.c_str (), v1));
+    EXPECT_EQ (v1, f1->replace_nc (k1.c_str (), v2));
+
+    delete f1; //this should also delete v2.
+    delete v1;
+}
+
+TEST (KvpFrameTest, GetKeys)
+{
+    auto k1 = "first key";
+    auto k2 = "second key";
+    auto k3 = "first key/third key";
+    auto f1 = new KvpFrameImpl;
+    auto v1 = new KvpValueImpl {15.2};
+    auto v2 = new KvpValueImpl { (int64_t)12};
+    auto v3 = new KvpValueImpl {strdup ("Never again")};
+
+    f1->replace_nc (k1, v1);
+    f1->replace_nc (k2, v2);
+    f1->replace_nc (k3, v3);
+
+    auto keys = f1->get_keys ();
+    EXPECT_EQ (keys.size (), 3);
+
+    assert_contains (keys, k1);
+    assert_contains (keys, k2);
+    assert_contains (keys, k3);
+
+    delete f1;//This should delete our KvpValueImpls, and our string above, too.
+}
+
+TEST (KvpFrameTest, GetSlot)
+{
+    auto f1 = new KvpFrameImpl;
+    auto v1 = new KvpValueImpl {2.2};
+    auto v2 = new KvpValueImpl { (int64_t)4};
+    auto k1 = "first key";
+    auto k2 = "first key/second key";
+
+    f1->replace_nc (k1, v1);
+    EXPECT_EQ (v1, f1->get_slot(k1));
+    f1->replace_nc (k2, v2);
+    EXPECT_EQ (v2, f1->get_slot(k2));
+    EXPECT_EQ (v1, f1->get_slot(k1));
+
+    delete f1;//which will delete both kvpvalues, too.
+}