Revert 194649 "Remove scoped_array from Chromium."

trunk/src/base/memory/scoped_ptr_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/scoped_ptr.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 360 matching lines @@
     scoped_ptr<ConDecLogger[]> scoper3;
     scoper3 = scoper2.Pass();
     EXPECT_EQ(kNumLoggers, constructed);
     EXPECT_FALSE(scoper);
     EXPECT_FALSE(scoper2);
     EXPECT_TRUE(scoper3);
   }
   EXPECT_EQ(0, constructed);
 }
 
+TEST(ScopedPtrTest, ScopedArray) {
+  static const int kNumLoggers = 12;
+
+  int constructed = 0;
+
+  {
+    scoped_array<ConDecLogger> scoper(new ConDecLogger[kNumLoggers]);
+    EXPECT_TRUE(scoper.get());
+    EXPECT_EQ(&scoper[0], scoper.get());
+    for (int i = 0; i < kNumLoggers; ++i) {
+      scoper[i].SetPtr(&constructed);
+    }
+    EXPECT_EQ(12, constructed);
+
+    EXPECT_EQ(10, scoper.get()->SomeMeth(10));
+    EXPECT_EQ(10, scoper[2].SomeMeth(10));
+  }
+  EXPECT_EQ(0, constructed);
+
+  // Test reset() and release()
+  {
+    scoped_array<ConDecLogger> scoper;
+    EXPECT_FALSE(scoper.get());
+    EXPECT_FALSE(scoper.release());
+    EXPECT_FALSE(scoper.get());
+    scoper.reset();
+    EXPECT_FALSE(scoper.get());
+
+    scoper.reset(new ConDecLogger[kNumLoggers]);
+    for (int i = 0; i < kNumLoggers; ++i) {
+      scoper[i].SetPtr(&constructed);
+    }
+    EXPECT_EQ(12, constructed);
+    scoper.reset();
+    EXPECT_EQ(0, constructed);
+
+    scoper.reset(new ConDecLogger[kNumLoggers]);
+    for (int i = 0; i < kNumLoggers; ++i) {
+      scoper[i].SetPtr(&constructed);
+    }
+    EXPECT_EQ(12, constructed);
+    ConDecLogger* ptr = scoper.release();
+    EXPECT_EQ(12, constructed);
+    delete[] ptr;
+    EXPECT_EQ(0, constructed);
+  }
+  EXPECT_EQ(0, constructed);
+
+  // Test swap(), ==, !=, and type-safe Boolean.
+  {
+    scoped_array<ConDecLogger> scoper1;
+    scoped_array<ConDecLogger> scoper2;
+    EXPECT_TRUE(scoper1 == scoper2.get());
+    EXPECT_FALSE(scoper1 != scoper2.get());
+
+    ConDecLogger* loggers = new ConDecLogger[kNumLoggers];
+    for (int i = 0; i < kNumLoggers; ++i) {
+      loggers[i].SetPtr(&constructed);
+    }
+    scoper1.reset(loggers);
+    EXPECT_TRUE(scoper1);
+    EXPECT_EQ(loggers, scoper1.get());
+    EXPECT_FALSE(scoper2);
+    EXPECT_FALSE(scoper2.get());
+    EXPECT_FALSE(scoper1 == scoper2.get());
+    EXPECT_TRUE(scoper1 != scoper2.get());
+
+    scoper2.swap(scoper1);
+    EXPECT_EQ(loggers, scoper2.get());
+    EXPECT_FALSE(scoper1.get());
+    EXPECT_FALSE(scoper1 == scoper2.get());
+    EXPECT_TRUE(scoper1 != scoper2.get());
+  }
+  EXPECT_EQ(0, constructed);
+}
+
 TEST(ScopedPtrTest, PassBehavior) {
   int constructed = 0;
   {
     ConDecLogger* logger = new ConDecLogger(&constructed);
     scoped_ptr<ConDecLogger> scoper(logger);
     EXPECT_EQ(1, constructed);
 
     // Test Pass() with constructor;
     scoped_ptr<ConDecLogger> scoper2(scoper.Pass());
     EXPECT_EQ(1, constructed);
@@ skipping 206 matching lines @@
     scoped_ptr<OverloadedNewAndDelete> scoper(new OverloadedNewAndDelete());
     EXPECT_TRUE(scoper.get());
 
     scoped_ptr<OverloadedNewAndDelete> scoper2(scoper.Pass());
   }
   EXPECT_EQ(1, OverloadedNewAndDelete::delete_count());
   EXPECT_EQ(1, OverloadedNewAndDelete::new_count());
 }
 
 // TODO scoped_ptr_malloc