MAINT-5232: Add LLHeteroMap to contain objects of unrelated classes.

1 files changed, 158 insertions, 0 deletions

diff --git a/indra/llcommon/tests/llheteromap_test.cpp b/indra/llcommon/tests/llheteromap_test.cpp
new file mode 100644
index 0000000000..4f38933e50
--- /dev/null
+++ b/indra/llcommon/tests/llheteromap_test.cpp
@@ -0,0 +1,158 @@
+/**
+ * @file   llheteromap_test.cpp
+ * @author Nat Goodspeed
+ * @date   2016-10-12
+ * @brief  Test for llheteromap.
+ * 
+ * $LicenseInfo:firstyear=2016&license=viewerlgpl$
+ * Copyright (c) 2016, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+// Precompiled header
+#include "linden_common.h"
+// associated header
+#include "llheteromap.h"
+// STL headers
+#include <set>
+// std headers
+// external library headers
+// other Linden headers
+#include "../test/lltut.h"
+
+static std::string clog;
+static std::set<std::string> dlog;
+
+std::ostream& operator<<(std::ostream& out, const std::set<std::string>& strset)
+{
+    out << '{';
+    const char* delim = "";
+    for (std::set<std::string>::const_iterator si(strset.begin()), se(strset.end());
+         si != se; ++si)
+    {
+        out << delim << '"' << *si << '"';
+        delim = ", ";
+    }
+    out << '}';
+    return out;
+}
+
+struct Chalk
+{
+    int dummy;
+    std::string name;
+
+    Chalk():
+        dummy(0)
+    {
+        clog.append("a");
+    }
+
+    ~Chalk()
+    {
+        dlog.insert("a");
+    }
+
+private:
+    Chalk(const Chalk&);            // no implementation
+};
+
+struct Cheese
+{
+    std::string name;
+
+    Cheese()
+    {
+        clog.append("e");
+    }
+
+    ~Cheese()
+    {
+        dlog.insert("e");
+    }
+
+private:
+    Cheese(const Cheese&);          // no implementation
+};
+
+struct Chowdah
+{
+    char displace[17];
+    std::string name;
+
+    Chowdah()
+    {
+        displace[0] = '\0';
+        clog.append("o");
+    }
+
+    ~Chowdah()
+    {
+        dlog.insert("o");
+    }
+
+private:
+    Chowdah(const Chowdah&);        // no implementation
+};
+
+/*****************************************************************************
+*   TUT
+*****************************************************************************/
+namespace tut
+{
+    struct llheteromap_data
+    {
+        llheteromap_data()
+        {
+            clog.erase();
+            dlog.clear();
+        }
+    };
+    typedef test_group<llheteromap_data> llheteromap_group;
+    typedef llheteromap_group::object object;
+    llheteromap_group llheteromapgrp("llheteromap");
+
+    template<> template<>
+    void object::test<1>()
+    {
+        set_test_name("create, get, delete");
+
+        {
+            LLHeteroMap map;
+
+            {
+                // create each instance
+                Chalk& chalk = map.obtain<Chalk>();
+                chalk.name = "Chalk";
+
+                Cheese& cheese = map.obtain<Cheese>();
+                cheese.name = "Cheese";
+
+                Chowdah& chowdah = map.obtain<Chowdah>();
+                chowdah.name = "Chowdah";
+            } // refs go out of scope
+
+            {
+                // verify each instance
+                Chalk& chalk = map.obtain<Chalk>();
+                ensure_equals(chalk.name, "Chalk");
+
+                Cheese& cheese = map.obtain<Cheese>();
+                ensure_equals(cheese.name, "Cheese");
+
+                Chowdah& chowdah = map.obtain<Chowdah>();
+                ensure_equals(chowdah.name, "Chowdah");
+            }
+        } // destroy map
+
+        // Chalk, Cheese and Chowdah should have been created in specific order
+        ensure_equals(clog, "aeo");
+
+        // We don't care what order they're destroyed in, as long as each is
+        // appropriately destroyed.
+        std::set<std::string> dtorset;
+        for (const char* cp = "aeo"; *cp; ++cp)
+            dtorset.insert(std::string(1, *cp));
+        ensure_equals(dlog, dtorset);
+    }
+} // namespace tut