[1788] extended auth.spec so an inmemory zone has an optional filetype item.

also added a new set of unittests that verify the new spec syntax.

src/bin/auth/auth.spec.pre.in

@@ -47,7 +47,13 @@
                 "item_type": "string",
                 "item_optional": false,
                 "item_default": ""
-              }]
+              },
+              { "item_name": "filetype",
+                "item_type": "string",
+                "item_optional": true,
+                "item_default": "text"
+              }
+	      ]
             }
           }]
         }

src/bin/auth/tests/Makefile.am

@@ -3,6 +3,7 @@ AM_CPPFLAGS += -I$(top_builddir)/src/bin # for generated spec_config.h header
 AM_CPPFLAGS += -I$(top_builddir)/src/lib/dns -I$(top_srcdir)/src/bin
 AM_CPPFLAGS += -I$(top_builddir)/src/lib/cc
 AM_CPPFLAGS += $(BOOST_INCLUDES)
+AM_CPPFLAGS += -DAUTH_OBJ_DIR=\"$(abs_top_builddir)/src/bin/auth\"
 AM_CPPFLAGS += -DTEST_DATA_DIR=\"$(abs_top_srcdir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DTEST_DATA_BUILDDIR=\"$(abs_top_builddir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DINSTALL_PROG=\"$(abs_top_srcdir)/install-sh\"
@@ -30,6 +31,7 @@ run_unittests_SOURCES += ../common.h ../common.cc
 run_unittests_SOURCES += ../statistics.h ../statistics.cc
 run_unittests_SOURCES += auth_srv_unittest.cc
 run_unittests_SOURCES += config_unittest.cc
+run_unittests_SOURCES += config_syntax_unittest.cc
 run_unittests_SOURCES += command_unittest.cc
 run_unittests_SOURCES += common_unittest.cc
 run_unittests_SOURCES += query_unittest.cc

src/bin/auth/tests/config_syntax_unittest.cc

@@ -0,0 +1,63 @@
+// Copyright (C) 2012  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+#include <cc/data.h>
+#include <config/module_spec.h>
+
+#include <gtest/gtest.h>
+
+using namespace isc::data;
+using namespace isc::config;
+
+namespace {
+
+const char* const SPEC_FILE = AUTH_OBJ_DIR "/auth.spec";
+
+class AuthConfigSyntaxTest : public ::testing::Test {
+protected:
+    AuthConfigSyntaxTest() : mspec_(moduleSpecFromFile(SPEC_FILE)),
+                             errors_(Element::createList())
+    {}
+    ModuleSpec mspec_;
+    ElementPtr errors_;
+};
+
+TEST_F(AuthConfigSyntaxTest, inmemorySQLite3Backend) {
+    // Specifying non-default in-memory filetype
+    EXPECT_TRUE(
+        mspec_.validateConfig(
+            Element::fromJSON(
+                "{\"datasources\": "
+                "  [{\"type\": \"memory\","
+                "    \"zones\": [{\"origin\": \"example.com\","
+                "                 \"file\": \""
+                TEST_DATA_DIR "/example.zone\","
+                "                 \"filetype\": \"sqlite3\"}]}]}"),
+            false, errors_));
+}
+
+TEST_F(AuthConfigSyntaxTest, badInmemoryFileType) {
+    // Filetype must be a string
+    EXPECT_FALSE(
+        mspec_.validateConfig(
+            Element::fromJSON(
+                "{\"datasources\": "
+                "  [{\"type\": \"memory\","
+                "    \"zones\": [{\"origin\": \"example.com\","
+                "                 \"file\": \""
+                TEST_DATA_DIR "/example.zone\","
+                "                 \"filetype\": 42}]}]}"),
+            false, errors_));
+}
+}