Fix unit test failures

When the unit tests were run without installing the libraries in their
final locations, the loading of the modules would fail. Using locations
relative to the build directory allows unit testing without having to
install the libraries.

server/modules/filter/cache/test/testkeygeneration.cc

@@ -15,6 +15,8 @@
 #include <iostream>
 #include <fstream>
 #include <tr1/unordered_map>
+#include <maxscale/alloc.h>
+#include <maxscale/paths.h>
 #include <maxscale/query_classifier.h>
 #include <maxscale/log_manager.h>
 #include "storagefactory.hh"
@@ -126,11 +128,16 @@ int main(int argc, char* argv[])
 
     if ((argc == 2) || (argc == 3))
     {
+        char* libdir = MXS_STRDUP("../../../../../query_classifier/qc_sqlite/");
+        set_libdir(libdir);
+
         if (mxs_log_init(NULL, ".", MXS_LOG_TARGET_DEFAULT))
         {
             if (qc_setup(NULL, NULL) && qc_process_init(QC_INIT_BOTH))
             {
                 const char* zModule = argv[1];
+                libdir = MXS_STRDUP("../storage/storage_inmemory/");
+                set_libdir(libdir);
 
                 StorageFactory* pFactory = StorageFactory::Open(zModule);
 
@@ -172,6 +179,9 @@ int main(int argc, char* argv[])
         {
             cerr << "error: Could not initialize log." << endl;
         }
+
+        // TODO: Remove this once globally allocated memory is freed
+        MXS_FREE(libdir);
     }
     else
     {

server/modules/filter/cache/test/testlrustorage.cc

@@ -13,6 +13,8 @@
 
 #include <maxscale/cppdefs.hh>
 #include <iostream>
+#include <maxscale/alloc.h>
+#include <maxscale/paths.h>
 #include "teststorage.hh"
 #include "testerlrustorage.hh"
 
@@ -46,7 +48,13 @@ private:
 
 int main(int argc, char* argv[])
 {
-    TestLRUStorage test(&cout);
+    char* libdir = MXS_STRDUP("../../../../../query_classifier/qc_sqlite/");
+    set_libdir(libdir);
 
-    return test.run(argc, argv);
+    TestLRUStorage test(&cout);
+    int rv = test.run(argc, argv);
+
+    // TODO: Remove this once globally allocated memory is freed
+    MXS_FREE(libdir);
+    return rv;
 }

server/modules/filter/cache/test/testrawstorage.cc

@@ -13,6 +13,8 @@
 
 #include <maxscale/cppdefs.hh>
 #include <iostream>
+#include <maxscale/alloc.h>
+#include <maxscale/paths.h>
 #include "teststorage.hh"
 #include "testerrawstorage.hh"
 
@@ -46,7 +48,13 @@ private:
 
 int main(int argc, char* argv[])
 {
-    TestRawStorage test(&cout);
+    char* libdir = MXS_STRDUP("../../../../../query_classifier/qc_sqlite/");
+    set_libdir(libdir);
 
-    return test.run(argc, argv);
+    TestRawStorage test(&cout);
+    int rv = test.run(argc, argv);
+
+    // TODO: Remove this once globally allocated memory is freed
+    MXS_FREE(libdir);
+    return rv;
 }