DEV-41408 convert lldependencies tut test to llcommon integration test.

1 files changed, 275 insertions, 0 deletions

diff --git a/indra/llcommon/tests/lldependencies_test.cpp b/indra/llcommon/tests/lldependencies_test.cpp
new file mode 100644
index 0000000000..f3c25de8b5
--- /dev/null
+++ b/indra/llcommon/tests/lldependencies_test.cpp
@@ -0,0 +1,275 @@
+/**
+ * @file   lldependencies_tut.cpp
+ * @author Nat Goodspeed
+ * @date   2008-09-17
+ * @brief  Test of lldependencies.h
+ * 
+ * $LicenseInfo:firstyear=2008&license=viewergpl$
+ * Copyright (c) 2008, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+// STL headers
+#include <iostream>
+#include <string>
+// std headers
+// external library headers
+#include <boost/assign/list_of.hpp>
+// Precompiled header
+#include "linden_common.h"
+// associated header
+#include "../lldependencies.h"
+// other Linden headers
+#include "../test/lltut.h"
+
+using boost::assign::list_of;
+
+#if LL_WINDOWS
+#pragma warning (disable : 4675) // "resolved by ADL" -- just as I want!
+#endif
+
+typedef LLDependencies<> StringDeps;
+typedef StringDeps::KeyList StringList;
+
+// We use the very cool boost::assign::list_of() construct to specify vectors
+// of strings inline. For reasons on which I'm not entirely clear, though, it
+// needs a helper function. You can use list_of() to construct an implicit
+// StringList (std::vector<std::string>) by conversion, e.g. for a function
+// parameter -- but if you simply write StringList(list_of("etc.")), you get
+// ambiguity errors. Shrug!
+template<typename CONTAINER>
+CONTAINER make(const CONTAINER& data)
+{
+    return data;
+}
+
+// Display an arbitary value as itself...
+template<typename T>
+std::ostream& display(std::ostream& out, const T& value)
+{
+    out << value;
+    return out;
+}
+
+// ...but display std::string enclosed in double quotes.
+template<>
+std::ostream& display(std::ostream& out, const std::string& value)
+{
+    out << '"' << value << '"';
+    return out;
+}
+
+// display any sequence compatible with Boost.Range
+template<typename SEQUENCE>
+std::ostream& display_seq(std::ostream& out,
+                          const std::string& open, const SEQUENCE& seq, const std::string& close)
+{
+    out << open;
+    typename boost::range_const_iterator<SEQUENCE>::type
+        sli = boost::begin(seq),
+        slend = boost::end(seq);
+    if (sli != slend)
+    {
+        display(out, *sli);
+        while (++sli != slend)
+        {
+            out << ", ";
+            display(out, *sli);
+        }
+    }
+    out << close;
+    return out;
+}
+
+// helper to dump a StringList to std::cout if needed
+template<typename ENTRY>
+std::ostream& operator<<(std::ostream& out, const std::vector<ENTRY>& list)
+{
+    display_seq(out, "(", list, ")");
+    return out;
+}
+
+template<typename ENTRY>
+std::ostream& operator<<(std::ostream& out, const std::set<ENTRY>& set)
+{
+    display_seq(out, "{", set, "}");
+    return out;
+}
+
+const std::string& extract_key(const LLDependencies<>::value_type& entry)
+{
+    return entry.first;
+}
+
+// helper to return a StringList of keys from LLDependencies::sort()
+StringList sorted_keys(LLDependencies<>& deps)
+{
+    // 1. Call deps.sort(), returning a value_type range of (key, node) pairs.
+    // 2. Use make_transform_range() to obtain a range of just keys.
+    // 3. Use instance_from_range to instantiate a StringList from that range.
+    // 4. Return by value "slices" instance_from_range<StringList> (a subclass
+    //    of StringList) to its base class StringList.
+    return instance_from_range<StringList>(make_transform_range(deps.sort(), extract_key));
+}
+
+template<typename RANGE>
+bool is_empty(const RANGE& range)
+{
+    return boost::begin(range) == boost::end(range);
+}
+
+/*****************************************************************************
+*   tut test group
+*****************************************************************************/
+namespace tut
+{
+    struct deps_data
+    {
+    };
+    typedef test_group<deps_data> deps_group;
+    typedef deps_group::object deps_object;
+    tut::deps_group depsgr("lldependencies");
+
+    template<> template<>
+    void deps_object::test<1>()
+    {
+        StringDeps deps;
+        StringList empty;
+        // The quick brown fox jumps over the lazy yellow dog.
+        // (note, "The" and "the" are distinct, else this test wouldn't work)
+        deps.add("lazy");
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")));
+        deps.add("jumps");
+        ensure("found lazy", deps.get("lazy"));
+        ensure("not found dog.", ! deps.get("dog."));
+        // NOTE: Maybe it's overkill to test each of these intermediate
+        // results before all the interdependencies have been specified. My
+        // thought is simply that if the order changes, I'd like to know why.
+        // A change to the implementation of boost::topological_sort() would
+        // be an acceptable reason, and you can simply update the expected
+        // test output.
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("jumps")));
+        deps.add("The", 0, empty, list_of("fox")("dog."));
+        // Test key accessors
+        ensure("empty before deps for missing key", is_empty(deps.get_before_range("bogus")));
+        ensure("empty before deps for jumps", is_empty(deps.get_before_range("jumps")));
+        ensure_equals(instance_from_range< std::set<std::string> >(deps.get_before_range("The")),
+                      make< std::set<std::string> >(list_of("dog.")("fox")));
+        // resume building dependencies
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("jumps")("The")));
+        deps.add("the", 0, list_of("The"));
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("jumps")("The")("the")));
+        deps.add("fox", 0, list_of("The"), list_of("jumps"));
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("The")("the")("fox")("jumps")));
+        deps.add("the", 0, list_of("The")); // same, see if cache works
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("The")("the")("fox")("jumps")));
+        deps.add("jumps", 0, empty, list_of("over")); // update jumps deps
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("The")("the")("fox")("jumps")));
+/*==========================================================================*|
+        // It drives me nuts that this test doesn't work in the test
+        // framework, because -- for reasons unknown -- running the test
+        // framework on Mac OS X 10.5 Leopard and Windows XP Pro, the catch
+        // clause below doesn't catch the exception. Something about the TUT
+        // test framework?!? The identical code works fine in a standalone
+        // test program. Commenting out the test for now, in hopes that our
+        // real builds will be able to catch Cycle exceptions...
+        try
+        {
+            // We've already specified fox -> jumps and jumps -> over. Try an
+            // impossible constraint.
+            deps.add("over", 0, empty, list_of("fox"));
+        }
+        catch (const StringDeps::Cycle& e)
+        {
+            std::cout << "Cycle detected: " << e.what() << '\n';
+            // It's legal to add() an impossible constraint because we don't
+            // detect the cycle until sort(). So sort() can't know the minimum set
+            // of nodes to remove to make the StringDeps object valid again.
+            // Therefore we must break the cycle by hand.
+            deps.remove("over");
+        }
+|*==========================================================================*/
+        deps.add("dog.", 0, list_of("yellow")("lazy"));
+        ensure_equals(instance_from_range< std::set<std::string> >(deps.get_after_range("dog.")),
+                      make< std::set<std::string> >(list_of("lazy")("yellow")));
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("The")("the")("fox")("jumps")("dog.")));
+        deps.add("quick", 0, list_of("The"), list_of("fox")("brown"));
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("The")("the")("quick")("fox")("jumps")("dog.")));
+        deps.add("over", 0, list_of("jumps"), list_of("yellow")("the"));
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("lazy")("The")("quick")("fox")("jumps")("over")("the")("dog.")));
+        deps.add("yellow", 0, list_of("the"), list_of("lazy"));
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("The")("quick")("fox")("jumps")("over")("the")("yellow")("lazy")("dog.")));
+        deps.add("brown");
+        // By now the dependencies are pretty well in place. A change to THIS
+        // order should be viewed with suspicion.
+        ensure_equals(sorted_keys(deps), make<StringList>(list_of("The")("quick")("brown")("fox")("jumps")("over")("the")("yellow")("lazy")("dog.")));
+
+        StringList keys(make<StringList>(list_of("The")("brown")("dog.")("fox")("jumps")("lazy")("over")("quick")("the")("yellow")));
+        ensure_equals(instance_from_range<StringList>(deps.get_key_range()), keys);
+#if (! defined(__GNUC__)) || (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ > 3)
+        // This is the succinct way, works on modern compilers
+        ensure_equals(instance_from_range<StringList>(make_transform_range(deps.get_range(), extract_key)), keys);
+#else   // gcc 3.3
+        StringDeps::range got_range(deps.get_range());
+        StringDeps::iterator kni = got_range.begin(), knend = got_range.end();
+        StringList::iterator ki = keys.begin(), kend = keys.end();
+        for ( ; kni != knend && ki != kend; ++kni, ++ki)
+        {
+            ensure_equals(kni->first, *ki);
+        }
+        ensure("get_range() returns proper length", kni == knend && ki == kend);
+#endif  // gcc 3.3
+        // blow off get_node_range() because they're all LLDependenciesEmpty instances
+    }
+
+    template<> template<>
+    void deps_object::test<2>()
+    {
+        typedef LLDependencies<std::string, int> NameIndexDeps;
+        NameIndexDeps nideps;
+        const NameIndexDeps& const_nideps(nideps);
+        nideps.add("def", 2, list_of("ghi"));
+        nideps.add("ghi", 3);
+        nideps.add("abc", 1, list_of("def"));
+        NameIndexDeps::range range(nideps.get_range());
+        ensure_equals(range.begin()->first, "abc");
+        ensure_equals(range.begin()->second, 1);
+        range.begin()->second = 0;
+        range.begin()->second = 1;
+        NameIndexDeps::const_range const_range(const_nideps.get_range());
+        NameIndexDeps::const_iterator const_iterator(const_range.begin());
+        ++const_iterator;
+        ensure_equals(const_iterator->first, "def");
+        ensure_equals(const_iterator->second, 2);
+        NameIndexDeps::node_range node_range(nideps.get_node_range());
+        ensure_equals(instance_from_range<std::vector<int> >(node_range), make< std::vector<int> >(list_of(1)(2)(3)));
+        *node_range.begin() = 0;
+        *node_range.begin() = 1;
+        NameIndexDeps::const_node_range const_node_range(const_nideps.get_node_range());
+        ensure_equals(instance_from_range<std::vector<int> >(const_node_range), make< std::vector<int> >(list_of(1)(2)(3)));
+        NameIndexDeps::const_key_range const_key_range(const_nideps.get_key_range());
+        ensure_equals(instance_from_range<StringList>(const_key_range), make<StringList>(list_of("abc")("def")("ghi")));
+        NameIndexDeps::sorted_range sorted(const_nideps.sort());
+        NameIndexDeps::sorted_iterator sortiter(sorted.begin());
+        ensure_equals(sortiter->first, "ghi");
+        ensure_equals(sortiter->second, 3);
+
+        // test all iterator-flavored versions of get_after_range()
+        StringList def(make<StringList>(list_of("def")));
+        ensure("empty abc before list", is_empty(nideps.get_before_range(nideps.get_range().begin())));
+        ensure_equals(instance_from_range<StringList>(nideps.get_after_range(nideps.get_range().begin())),
+                      def);
+        ensure_equals(instance_from_range<StringList>(const_nideps.get_after_range(const_nideps.get_range().begin())),
+                      def);
+        ensure_equals(instance_from_range<StringList>(nideps.get_after_range(nideps.get_node_range().begin())),
+                      def);
+        ensure_equals(instance_from_range<StringList>(const_nideps.get_after_range(const_nideps.get_node_range().begin())),
+                      def);
+        ensure_equals(instance_from_range<StringList>(nideps.get_after_range(nideps.get_key_range().begin())),
+                      def);
+        // advance from "ghi" to "def", which must come after "ghi"
+        ++sortiter;
+        ensure_equals(instance_from_range<StringList>(const_nideps.get_after_range(sortiter)),
+                      make<StringList>(list_of("ghi")));
+    }
+} // namespace tut