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author | Bobby R. Bruce <bbruce@ucdavis.edu> | 2019-10-08 14:03:49 -0700 |
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committer | Bobby R. Bruce <bbruce@ucdavis.edu> | 2019-10-09 19:14:40 +0000 |
commit | 0a2e6152a71d4d5465d5941d73df80381a97e365 (patch) | |
tree | 9dba81e1003c479093e5ee5dea8d93529746cd84 /src/base/refcnt.test.cc | |
parent | e1a97946510dd5551f2adf4d7367a954cb34330b (diff) | |
download | gem5-0a2e6152a71d4d5465d5941d73df80381a97e365.tar.xz |
tests: Migrated refcnt.cc test from src/unitttest to a gtest
refcnt.cc was previously tested in src/unittest/refcnttest.cc. This has
now been translated into a GTest as faithfully to the original as
possible.
Change-Id: I51f7a3d1e0a85b128c4eebd97cfe79b87406dc29
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21499
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Diffstat (limited to 'src/base/refcnt.test.cc')
-rw-r--r-- | src/base/refcnt.test.cc | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/base/refcnt.test.cc b/src/base/refcnt.test.cc new file mode 100644 index 000000000..a4ff0b517 --- /dev/null +++ b/src/base/refcnt.test.cc @@ -0,0 +1,176 @@ +/* + * Copyright (c) 2019 The Regents of The University of California + * All rights resvered. + * + * Copyright (c) 2010 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + * Bobby R. Bruce + */ + +#include <gtest/gtest.h> + +#include <list> + +#include "base/refcnt.hh" + +using namespace std; + +namespace { + +class TestRC; +typedef list<TestRC *> LiveList; +LiveList liveList; + +int +liveListSize(){ + return liveList.size(); +} + +class TestRC : public RefCounted +{ + protected: + LiveList::iterator liveIt; + + public: + TestRC() + { + liveList.push_front(this); + liveIt = liveList.begin(); + } + + ~TestRC() + { + liveList.erase(liveIt); + } + + int testVal; +}; +typedef RefCountingPtr<TestRC> Ptr; + +} // anonymous namespace + +TEST(RefcntTest, NullPointerCheck) +{ + // Create an empty Ptr and verify it's data pointer is NULL. + Ptr nullCheck; + EXPECT_EQ(NULL, nullCheck.get()); + EXPECT_EQ(0, liveListSize()); +} + +TEST(RefcntTest, ConstructionFromPointer) +{ + // Construct a Ptr from a TestRC pointer. + Ptr constFromPointer = new TestRC(); + EXPECT_EQ(1, liveListSize()); +} + +TEST(RefcntTest, ConstructionFromExistingPointer) +{ + // Construct a Ptr from an existing Ptr. + Ptr constFromPointer1 = new TestRC(); + Ptr constFromPointer2 = constFromPointer1; + + EXPECT_EQ(1, liveListSize()); +} + +TEST(RefcntTest, DestroyPointer) +{ + // Test a Ptr being destroyed. + Ptr *ptrPtr = new Ptr(new TestRC()); + EXPECT_EQ(1, liveListSize()); + delete ptrPtr; + EXPECT_EQ(0, liveListSize()); +} + +TEST(RefcntTest, AssignmentFromAPointerFromAPointer) +{ + // Test assignment from a pointer and from a Ptr. + Ptr assignmentTarget; + TestRC *assignmentSourcePointer = new TestRC(); + EXPECT_EQ(liveListSize(), 1); + assignmentTarget = assignmentSourcePointer; + EXPECT_EQ(liveListSize(), 1); + assignmentTarget = NULL; + EXPECT_EQ(liveListSize(), 0); + Ptr assignmentSourcePtr(new TestRC()); + EXPECT_EQ(liveListSize(), 1); + assignmentTarget = assignmentSourcePtr; + EXPECT_EQ(liveListSize(), 1); + assignmentSourcePtr = NULL; + EXPECT_EQ(liveListSize(), 1); + assignmentTarget = NULL; + EXPECT_EQ(liveListSize(), 0); +} + +TEST(RefcntTest, AccessToClassPointers) +{ + // Test access to members of the pointed to class and dereferencing. + TestRC *accessTest = new TestRC(); + Ptr accessTestPtr = accessTest; + accessTest->testVal = 1; + EXPECT_EQ(1, accessTestPtr->testVal); + EXPECT_EQ(1, (*accessTestPtr).testVal); + accessTest->testVal = 2; + EXPECT_EQ(2, accessTestPtr->testVal); + EXPECT_EQ(2, (*accessTestPtr).testVal); + accessTestPtr->testVal = 3; + EXPECT_EQ(3, accessTest->testVal); + (*accessTestPtr).testVal = 4; + EXPECT_EQ(4, accessTest->testVal); + accessTestPtr = NULL; + accessTest = NULL; + EXPECT_EQ(0, liveListSize()); +} + +TEST(RefcntTest, BoolAndLogicalNotOperatorOverloads) +{ + // Test bool and ! operator overloads. + Ptr boolTest = new TestRC(); + EXPECT_EQ(boolTest, true); + EXPECT_EQ(!boolTest, false); + boolTest = NULL; + EXPECT_FALSE(boolTest); + EXPECT_TRUE(!boolTest); + EXPECT_EQ(0, liveListSize()); +} + +TEST(RefcntTest, EqualityOperators) +{ + // Test the equality operators. + TestRC *equalTestA = new TestRC(); + Ptr equalTestAPtr = equalTestA; + Ptr equalTestAPtr2 = equalTestA; + TestRC *equalTestB = new TestRC(); + Ptr equalTestBPtr = equalTestB; + EXPECT_TRUE(equalTestA == equalTestAPtr); + EXPECT_TRUE(equalTestAPtr == equalTestA); + EXPECT_TRUE(equalTestAPtr == equalTestAPtr2); + EXPECT_TRUE(equalTestA != equalTestBPtr); + EXPECT_TRUE(equalTestAPtr != equalTestB); + EXPECT_TRUE(equalTestAPtr != equalTestBPtr); +}
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