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diff --git a/sca-cpp/branches/lightweight-sca/kernel/string-test.cpp b/sca-cpp/branches/lightweight-sca/kernel/string-test.cpp
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+++ b/sca-cpp/branches/lightweight-sca/kernel/string-test.cpp
@@ -0,0 +1,199 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/* $Rev$ $Date$ */
+
+/**
+ * Test string functions.
+ */
+
+#include <assert.h>
+#include <string>
+#include "sstream.hpp"
+#include "string.hpp"
+#include "list.hpp"
+#include "perf.hpp"
+
+namespace tuscany {
+
+bool testCopies() {
+    resetStringCopyCounters();
+    string x("abcd");
+    assert(checkStringCopyCounters(1));
+    resetStringCopyCounters();
+    string y = string("abcd");
+    assert(checkStringCopyCounters(1));
+    resetStringCopyCounters();
+    unused string z = y;
+    assert(checkStringCopyCounters(0));
+    resetStringCopyCounters();
+    const list<string> pl = list<string>() + "abcd" + "efgh";
+    printStringCopyCounters();
+    resetStringCopyCounters();
+    const list<string> cl = cons<string>("efgh", mklist<string>("abcd"));
+    printStringCopyCounters();
+    return true;
+}
+
+bool testString() {
+    const string s("abcd");
+    assert(length(s) == 4);
+    assert(!strcmp(c_str(s), "abcd"));
+
+    assert(s == "abcd");
+    assert(s == string("abcd"));
+    assert(s != "zbcd");
+
+    assert(s < "zbcd");
+    assert(s < "zbc");
+    assert(s < "abzd");
+    assert(s < "abcdz");
+
+    assert(s > "Abcd");
+    assert(s > "Abc");
+    assert(s > "abCd");
+    assert(s > "Abcdz");
+
+    const string x = "abcd";
+    assert(!strcmp(c_str(x), "abcd"));
+
+    const string y = string("abcd");
+    assert(!strcmp(c_str(y), "abcd"));
+
+    assert(string("ab") + "cd" == "abcd");
+
+    assert(find("abcd", "cd") == 2);
+    assert(find("abcd", "xy") == length("abcd"));
+    assert(find_first_of("abcd", "cd") == 2);
+    assert(find_first_of("abcd", "xy") == length("abcd"));
+    assert(substr("abcdef", 4) == "ef");
+    assert(substr("abcdef", 4, 2) == "ef");
+    assert(substr("abcdef", 4, 3) == "ef");
+    assert(substr("abcdef", 6, 3) == "");
+    return true;
+}
+
+bool testStream() {
+    ostringstream os;
+    os << "ab" << "cd";
+    cout << str(os) << endl;
+    assert(str(os) == "abcd");
+
+    ostringstream cs;
+    cs << "\'";
+    assert(str(cs) == "\'");
+    cs << '\'';
+    assert(str(cs) == "\'\'");
+
+    istringstream is("abcd");
+    char b[2];
+    assert(read(is, b, 2) == 2);
+    assert(string("ab") == string(b, 2));
+    assert(eof(is) == false);
+    assert(read(is, b, 2) == 2);
+    assert(string("cd") == string(b, 2));
+    assert(eof(is) == true);
+    assert(read(is, b, 2) == 0);
+    return true;
+}
+
+std::string stdAdd(std::string& x, std::string& y) {
+    return x + y;
+}
+
+string add(string& x, string& y) {
+    return x + y;
+}
+
+char charBuffer[16385];
+
+struct addStrings{
+    const size_t size;
+    addStrings(const size_t size) : size(size) {
+    }
+    bool operator()() const {
+        const size_t sz = size / 4;
+        string x(charBuffer, sz);
+        string y(charBuffer, sz);
+        assert(length(add(x, y)) == sz * 2);
+        return true;
+    }
+};
+
+struct addStdStrings{
+    const size_t size;
+    addStdStrings(const size_t size) : size(size) {
+    }
+    bool operator()() const {
+        const size_t sz = size / 4;
+        std::string x(charBuffer, sz);
+        std::string y(charBuffer, sz);
+        assert(stdAdd(x, y).length() == (unsigned int)(sz * 2));
+        return true;
+    }
+};
+
+bool testStringPerf() {
+    memset(charBuffer, 'A', 16384);
+    charBuffer[16384] = '\0';
+
+    const int count = 10000;
+    {
+        const lambda<bool()> a16 = addStrings(16);
+        cout << "string test " << time(a16, 5, count) << " ms" << endl;
+        const lambda<bool()> a32 =addStrings(32);
+        cout << "string test " << time(a32, 5, count) << " ms" << endl;
+        const lambda<bool()> a256 =addStrings(256);
+        cout << "string test " << time(a256, 5, count) << " ms" << endl;
+        const lambda<bool()> a1024 =addStrings(1024);
+        cout << "string test " << time(a1024, 5, count) << " ms" << endl;
+        const lambda<bool()> a4096 =addStrings(4096);
+        cout << "string test " << time(a4096, 5, count) << " ms" << endl;
+    }
+    {
+        const lambda<bool()> a16 =addStdStrings(16);
+        cout << "Std string test " << time(a16, 5, count) << " ms" << endl;
+        const lambda<bool()> a32 =addStdStrings(32);
+        cout << "Std string test " << time(a32, 5, count) << " ms" << endl;
+        const lambda<bool()> a256 =addStdStrings(256);
+        cout << "Std string test " << time(a256, 5, count) << " ms" << endl;
+        const lambda<bool()> a1024 =addStdStrings(1024);
+        cout << "Std string test " << time(a1024, 5, count) << " ms" << endl;
+        const lambda<bool()> a4096 =addStdStrings(4096);
+        cout << "Std string test " << time(a4096, 5, count) << " ms" << endl;
+    }
+
+    return true;
+}
+
+}
+
+int main() {
+    tuscany::gc_scoped_pool p;
+    tuscany::cout << "Testing..." << tuscany::endl;
+
+    tuscany::testCopies();
+    tuscany::testString();
+    tuscany::testStream();
+    tuscany::testStringPerf();
+
+    tuscany::cout << "OK" << tuscany::endl;
+
+    return 0;
+}