1 /*
2 * Copyright 2017 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "SkMakeUnique.h"
9 #include "SkVptr.h"
10 #include "Test.h"
11
12 namespace {
13
14 struct Base {
15 virtual ~Base() = default;
16 virtual size_t val() const = 0;
17 };
18
19 struct SubclassA : public Base {
SubclassA__anon4c29d87e0111::SubclassA20 SubclassA(size_t val) : fVal(val) {}
21
val__anon4c29d87e0111::SubclassA22 size_t val() const override { return fVal; }
23
24 size_t fVal;
25 };
26
27 struct SubclassB : public Base {
SubclassB__anon4c29d87e0111::SubclassB28 SubclassB() {}
29
val__anon4c29d87e0111::SubclassB30 size_t val() const override { return 42; }
31 };
32
33 }
34
DEF_TEST(Vptr,r)35 DEF_TEST(Vptr, r) {
36 std::unique_ptr<Base> a = skstd::make_unique<SubclassA>(21),
37 b = skstd::make_unique<SubclassB>(),
38 c = skstd::make_unique<SubclassA>(22),
39 d = skstd::make_unique<SubclassB>();
40
41 // These 4 objects all have unique identities.
42 REPORTER_ASSERT(r, a != b);
43 REPORTER_ASSERT(r, a != c);
44 REPORTER_ASSERT(r, a != d);
45 REPORTER_ASSERT(r, b != c);
46 REPORTER_ASSERT(r, b != d);
47 REPORTER_ASSERT(r, c != d);
48
49 // Only b and d have the same val().
50 REPORTER_ASSERT(r, a->val() != b->val());
51 REPORTER_ASSERT(r, a->val() != c->val());
52 REPORTER_ASSERT(r, a->val() != d->val());
53 REPORTER_ASSERT(r, b->val() != c->val());
54 REPORTER_ASSERT(r, b->val() == d->val());
55 REPORTER_ASSERT(r, c->val() != d->val());
56
57 // SkVptr() returns the same value for objects of the same concrete type.
58 REPORTER_ASSERT(r, SkVptr(*a) == SkVptr(*c));
59 REPORTER_ASSERT(r, SkVptr(*b) == SkVptr(*d));
60 REPORTER_ASSERT(r, SkVptr(*a) != SkVptr(*b));
61 }
62