skia2/tests/OnceTest.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

53 lines
1.0 KiB
C++

/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/private/SkOnce.h"
#include "src/core/SkTaskGroup.h"
#include "tests/Test.h"
static void add_five(int* x) {
*x += 5;
}
DEF_TEST(SkOnce_Singlethreaded, r) {
int x = 0;
// No matter how many times we do this, x will be 5.
SkOnce once;
once(add_five, &x);
once(add_five, &x);
once(add_five, &x);
once(add_five, &x);
once(add_five, &x);
REPORTER_ASSERT(r, 5 == x);
}
DEF_TEST(SkOnce_Multithreaded, r) {
int x = 0;
// Run a bunch of tasks to be the first to add six to x.
SkOnce once;
SkTaskGroup().batch(1021, [&](int) {
once([&] { x += 6; });
});
// Only one should have done the +=.
REPORTER_ASSERT(r, 6 == x);
}
static int gX = 0;
static void inc_gX() { gX++; }
DEF_TEST(SkOnce_NoArg, r) {
SkOnce once;
once(inc_gX);
once(inc_gX);
once(inc_gX);
REPORTER_ASSERT(r, 1 == gX);
}