src/third_party/skia/tests/ErrorTest.cpp

   1 /*
   2  * Copyright 2013 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 "SkError.h"
   9 #include "SkPath.h"
  10 #include "SkRect.h"
  11 #include "Test.h"
  12
  13 typedef struct {
  14     skiatest::Reporter *fReporter;
  15     unsigned int *fIntPointer;
  16 } ErrorContext;
  17
  18 #define CHECK(errcode)                                                        \
  19   REPORTER_ASSERT( reporter, (err = SkGetLastError()) == errcode);            \
  20   if (err != kNoError_SkError)                                                \
  21   {                                                                           \
  22      SkClearLastError();                                                      \
  23   }
  24
  25 static void cb(SkError err, void *context) {
  26     ErrorContext *context_ptr = static_cast<ErrorContext *>(context);
  27     REPORTER_ASSERT( context_ptr->fReporter, (*(context_ptr->fIntPointer) == 0xdeadbeef) );
  28 }
  29
  30 DEF_TEST(Error, reporter) {
  31     SkError err;
  32
  33     unsigned int test_value = 0xdeadbeef;
  34     ErrorContext context;
  35     context.fReporter = reporter;
  36     context.fIntPointer = &test_value;
  37
  38     SkSetErrorCallback(cb, &context);
  39
  40     CHECK(kNoError_SkError);
  41
  42     SkRect r = SkRect::MakeWH(50, 100);
  43     CHECK(kNoError_SkError);
  44
  45     SkPath path;
  46     path.addRect(r);
  47     CHECK(kNoError_SkError);
  48
  49     path.addRoundRect(r, 10, 10);
  50     CHECK(kNoError_SkError);
  51
  52     // should trigger the default error callback, which just prints to the screen.
  53     path.addRoundRect(r, -10, -10);
  54     CHECK(kInvalidArgument_SkError);
  55     CHECK(kNoError_SkError);
  56
  57     // should trigger *our* callback.
  58     path.addRoundRect(r, -10, -10);
  59     CHECK(kInvalidArgument_SkError);
  60     CHECK(kNoError_SkError);
  61 }