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// 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.
#import <Cocoa/Cocoa.h>
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/browser/accessibility/browser_accessibility_cocoa.h"
#include "content/browser/accessibility/browser_accessibility_manager.h"
#include "content/browser/accessibility/browser_accessibility_manager_mac.h"
#include "testing/gtest/include/gtest/gtest.h"
#import "testing/gtest_mac.h"
#import "ui/base/test/ui_cocoa_test_helper.h"
@interface MockAccessibilityDelegate :
NSView<BrowserAccessibilityDelegateCocoa>
- (NSPoint)accessibilityPointInScreen:(NSPoint)origin
size:(NSSize)size;
- (void)doDefaultAction:(int32)accessibilityObjectId;
- (void)accessibilitySetTextSelection:(int32)accId
startOffset:(int32)startOffset
endOffset:(int32)endOffset;
- (void)performShowMenuAction:(BrowserAccessibilityCocoa*)accessibility;
- (void)setAccessibilityFocus:(BOOL)focus
accessibilityId:(int32)accessibilityObjectId;
- (NSWindow*)window;
@end
@implementation MockAccessibilityDelegate
- (NSPoint)accessibilityPointInScreen:(NSPoint)origin
size:(NSSize)size {
return NSZeroPoint;
}
- (void)doDefaultAction:(int32)accessibilityObjectId {
}
- (void)accessibilitySetTextSelection:(int32)accId
startOffset:(int32)startOffset
endOffset:(int32)endOffset {
}
- (void)performShowMenuAction:(BrowserAccessibilityCocoa*)accessibility {
}
- (void)setAccessibilityFocus:(BOOL)focus
accessibilityId:(int32)accessibilityObjectId {
}
- (NSWindow*)window {
return nil;
}
@end
namespace content {
class BrowserAccessibilityTest : public ui::CocoaTest {
public:
virtual void SetUp() {
CocoaTest::SetUp();
RebuildAccessibilityTree();
}
protected:
void RebuildAccessibilityTree() {
ui::AXNodeData root;
root.id = 1000;
root.location.set_width(500);
root.location.set_height(100);
root.role = ui::AX_ROLE_ROOT_WEB_AREA;
root.AddStringAttribute(ui::AX_ATTR_HELP, "HelpText");
root.child_ids.push_back(1001);
root.child_ids.push_back(1002);
ui::AXNodeData child1;
child1.id = 1001;
child1.SetName("Child1");
child1.location.set_width(250);
child1.location.set_height(100);
child1.role = ui::AX_ROLE_BUTTON;
ui::AXNodeData child2;
child2.id = 1002;
child2.location.set_x(250);
child2.location.set_width(250);
child2.location.set_height(100);
child2.role = ui::AX_ROLE_HEADING;
delegate_.reset([[MockAccessibilityDelegate alloc] init]);
manager_.reset(
new BrowserAccessibilityManagerMac(delegate_, root, NULL));
manager_->UpdateNodesForTesting(child1, child2);
accessibility_.reset([manager_->GetRoot()->ToBrowserAccessibilityCocoa()
retain]);
}
base::scoped_nsobject<MockAccessibilityDelegate> delegate_;
base::scoped_nsobject<BrowserAccessibilityCocoa> accessibility_;
scoped_ptr<BrowserAccessibilityManager> manager_;
};
// Standard hit test.
TEST_F(BrowserAccessibilityTest, HitTestTest) {
BrowserAccessibilityCocoa* firstChild =
[accessibility_ accessibilityHitTest:NSMakePoint(50, 50)];
EXPECT_NSEQ(@"Child1",
[firstChild accessibilityAttributeValue:NSAccessibilityTitleAttribute]);
}
// Test doing a hit test on the edge of a child.
TEST_F(BrowserAccessibilityTest, EdgeHitTest) {
BrowserAccessibilityCocoa* firstChild =
[accessibility_ accessibilityHitTest:NSZeroPoint];
EXPECT_NSEQ(@"Child1",
[firstChild accessibilityAttributeValue:NSAccessibilityTitleAttribute]);
}
// This will test a hit test with invalid coordinates. It is assumed that
// the hit test has been narrowed down to this object or one of its children
// so it should return itself since it has no better hit result.
TEST_F(BrowserAccessibilityTest, InvalidHitTestCoordsTest) {
BrowserAccessibilityCocoa* hitTestResult =
[accessibility_ accessibilityHitTest:NSMakePoint(-50, 50)];
EXPECT_NSEQ(accessibility_, hitTestResult);
}
// Test to ensure querying standard attributes works.
TEST_F(BrowserAccessibilityTest, BasicAttributeTest) {
NSString* helpText = [accessibility_
accessibilityAttributeValue:NSAccessibilityHelpAttribute];
EXPECT_NSEQ(@"HelpText", helpText);
}
// Test querying for an invalid attribute to ensure it doesn't crash.
TEST_F(BrowserAccessibilityTest, InvalidAttributeTest) {
NSString* shouldBeNil = [accessibility_
accessibilityAttributeValue:@"NSAnInvalidAttribute"];
EXPECT_TRUE(shouldBeNil == nil);
}
TEST_F(BrowserAccessibilityTest, RetainedDetachedObjectsReturnNil) {
// Get the first child.
BrowserAccessibilityCocoa* retainedFirstChild =
[accessibility_ accessibilityHitTest:NSMakePoint(50, 50)];
EXPECT_NSEQ(@"Child1", [retainedFirstChild
accessibilityAttributeValue:NSAccessibilityTitleAttribute]);
// Retain it. This simulates what the system might do with an
// accessibility object.
[retainedFirstChild retain];
// Rebuild the accessibility tree, which should detach |retainedFirstChild|.
RebuildAccessibilityTree();
// Now any attributes we query should return nil.
EXPECT_EQ(nil, [retainedFirstChild
accessibilityAttributeValue:NSAccessibilityTitleAttribute]);
// Don't leak memory in the test.
[retainedFirstChild release];
}
} // namespace content
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