Rename PPB_Font to PPB_BrowserFont_Trusted.

ppapi/tests/test_browser_font.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 "ppapi/tests/test_browser_font.h"
+
+#include <stdio.h>// ERASEME
+
+#include "ppapi/tests/test_utils.h"
+#include "ppapi/tests/testing_instance.h"
+#include "ppapi/cpp/image_data.h"
+#include "ppapi/cpp/trusted/browser_font_trusted.h"
+
+REGISTER_TEST_CASE(BrowserFont);
+
+bool TestBrowserFont::Init() {
+  return true;
+}
+
+void TestBrowserFont::RunTests(const std::string& filter) {
+  RUN_TEST(FontFamilies, filter);
+  RUN_TEST(Measure, filter);
+  RUN_TEST(CharPos, filter);
+  RUN_TEST(Draw, filter);
+}
+
+// Just tests that GetFontFamilies is hooked up & returns something.
+std::string TestBrowserFont::TestFontFamilies() {
+  // This function is only supported out-of-process.
+  const PPB_Testing_Dev* testing_interface = GetTestingInterface();
+  if (testing_interface && !testing_interface->IsOutOfProcess())
+    PASS();
+
+  pp::Var families = pp::BrowserFont_Trusted::GetFontFamilies(instance_);
+
+  ASSERT_TRUE(families.is_string());
+  ASSERT_TRUE(!families.AsString().empty());
+  PASS();
+}
+
+// Tests that measuring text behaves reasonably. We aren't sure if the browser
+// will be doing kerning or something for the particular default font, so we
+// just make a string that we're pretty sure should be more than twice as long
+// as another one, and verify that condition.
+std::string TestBrowserFont::TestMeasure() {
+  pp::BrowserFontDescription desc;
+  pp::BrowserFont_Trusted font(instance_, desc);
+
+  int32_t length1 = font.MeasureText(pp::BrowserFontTextRun("WWW"));
+  ASSERT_TRUE(length1 > 0);
+  int32_t length2 = font.MeasureText(pp::BrowserFontTextRun("WWWWWWWW"));
+
+  ASSERT_TRUE(length2 >= length1 * 2);
+  PASS();
+}
+
+// Tests that the character/pixel offset functions correctly round-trip.
+std::string TestBrowserFont::TestCharPos() {
+  pp::BrowserFontDescription desc;
+  pp::BrowserFont_Trusted font(instance_, desc);
+
+  pp::BrowserFontTextRun run("Hello, world");
+  uint32_t original_char = 3;
+  uint32_t pixel_offset = font.PixelOffsetForCharacter(run, original_char);
+  ASSERT_TRUE(pixel_offset > 0);
+
+  uint32_t computed_char = font.CharacterOffsetForPixel(
+      run, static_cast<int32_t>(pixel_offset));
+  ASSERT_TRUE(computed_char == original_char);
+
+  PASS();
+}
+
+// Tests that drawing some text produces "some" output.
+std::string TestBrowserFont::TestDraw() {
+  pp::BrowserFontDescription desc;
+  desc.set_size(100);
+  pp::BrowserFont_Trusted font(instance_, desc);
+
+  const int kSize = 256;
+  pp::ImageData image(instance_, pp::ImageData::GetNativeImageDataFormat(),
+                      pp::Size(kSize, kSize), true);
+  ASSERT_TRUE(!image.is_null());
+
+  const uint32_t kColor = 0xFFFFFFFF;
+  font.DrawSimpleText(&image, "Hello", pp::Point(0, 0), kColor, false);
+
+  // Expect that some pixel is nonzero. Due to blending, there may be rounding
+  // errors and checking for exact white may not be correct.
+  bool found = false;
+  for (int y = 0; y < kSize; y++) {
+    for (int x = 0; x < kSize; x++) {
+      if (*image.GetAddr32(pp::Point(x, y)) != 0) {
+        found = true;
+        break;
+      }
+    }
+  }
+  ASSERT_TRUE(found);
+  PASS();
+}