SERVER-7172 Added comparison support in StringData.

1 files changed, 92 insertions, 0 deletions

diff --git a/src/mongo/base/string_data_test.cpp b/src/mongo/base/string_data_test.cpp
new file mode 100644
index 00000000000..4932d2b2b55
--- /dev/null
+++ b/src/mongo/base/string_data_test.cpp
@@ -0,0 +1,92 @@
+/**
+ *    Copyright (C) 2012 10gen Inc.
+ *
+ *    This program is free software: you can redistribute it and/or  modify
+ *    it under the terms of the GNU Affero General Public License, version 3,
+ *    as published by the Free Software Foundation.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Affero General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Affero General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string>
+
+#include "mongo/base/string_data.h"
+#include "mongo/unittest/unittest.h"
+
+namespace {
+
+    using mongo::StringData;
+    using std::string;
+
+    TEST(Construction, FromStdString) {
+        std::string base("aaa");
+        StringData strData(base);
+        ASSERT_EQUALS(strData.size(), base.size());
+        ASSERT_EQUALS(strData.toString(), base);
+    }
+
+    TEST(Construction, FromCString) {
+        std::string base("aaa");
+        StringData strData(base.c_str());
+        ASSERT_EQUALS(strData.size(), base.size());
+        ASSERT_EQUALS(strData.toString(), base);
+    }
+
+    TEST(Construction, FromLiteral) {
+        StringData strData("ccc", StringData::LiteralTag());
+        ASSERT_EQUALS(strData.size(), 3U);
+        ASSERT_EQUALS(strData.toString(), string("ccc"));
+    }
+
+    TEST(Comparison, BothEmpty) {
+        StringData empty("");
+        ASSERT_TRUE(empty == empty);
+        ASSERT_FALSE(empty != empty);
+        ASSERT_FALSE(empty > empty);
+        ASSERT_TRUE(empty >= empty);
+        ASSERT_FALSE(empty < empty);
+        ASSERT_TRUE(empty <= empty);
+    }
+
+    TEST(Comparison, BothNonEmptyOnSize) {
+        StringData a("a");
+        StringData aa("aa");
+        ASSERT_FALSE(a == aa);
+        ASSERT_TRUE(a != aa);
+        ASSERT_FALSE(a > aa);
+        ASSERT_FALSE(a >= aa);
+        ASSERT_TRUE(a >= a);
+        ASSERT_TRUE(a < aa);
+        ASSERT_TRUE(a <= aa);
+        ASSERT_TRUE(a <= a);
+    }
+
+    TEST(Comparison, BothNonEmptyOnContent) {
+        StringData a("a");
+        StringData b("b");
+        ASSERT_FALSE(a == b);
+        ASSERT_TRUE(a != b);
+        ASSERT_FALSE(a > b);
+        ASSERT_FALSE(a >= b);
+        ASSERT_TRUE(a < b);
+        ASSERT_TRUE(a <= b);
+    }
+
+    TEST(Comparison, MixedEmptyAndNot) {
+        StringData empty("");
+        StringData a("a");
+        ASSERT_FALSE(a == empty);
+        ASSERT_TRUE(a != empty);
+        ASSERT_TRUE(a > empty);
+        ASSERT_TRUE(a >= empty);
+        ASSERT_FALSE(a < empty);
+        ASSERT_FALSE(a <= empty);
+    }
+
+} // unnamed namespace