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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
      6 #include "testing/gtest/include/gtest/gtest.h"
      7 
      8 TEST(OmniboxPopupModelTest, ComputeMatchMaxWidths) {
      9     int contents_max_width, description_max_width;
     10     const int separator_width = 10;
     11     const int kMinimumContentsWidth = 300;
     12     int contents_width, description_width, available_width;
     13 
     14     // Both contents and description fit fine.
     15     contents_width = 100;
     16     description_width = 50;
     17     available_width = 200;
     18     OmniboxPopupModel::ComputeMatchMaxWidths(
     19         contents_width, separator_width, description_width, available_width,
     20         true, &contents_max_width, &description_max_width);
     21     EXPECT_EQ(contents_width, contents_max_width);
     22     EXPECT_EQ(description_width, description_max_width);
     23 
     24     // Contents should be given as much space as it wants up to 300 pixels.
     25     contents_width = 100;
     26     description_width = 50;
     27     available_width = 100;
     28     OmniboxPopupModel::ComputeMatchMaxWidths(
     29         contents_width, separator_width, description_width, available_width,
     30         true, &contents_max_width, &description_max_width);
     31     EXPECT_EQ(contents_width, contents_max_width);
     32     EXPECT_EQ(0, description_max_width);
     33 
     34     // Description should be hidden if it's at least 75 pixels wide but doesn't
     35     // get 75 pixels of space.
     36     contents_width = 300;
     37     description_width = 100;
     38     available_width = 384;
     39     OmniboxPopupModel::ComputeMatchMaxWidths(
     40         contents_width, separator_width, description_width, available_width,
     41         true, &contents_max_width, &description_max_width);
     42     EXPECT_EQ(contents_width, contents_max_width);
     43     EXPECT_EQ(0, description_max_width);
     44 
     45     // Both contents and description will be limited.
     46     contents_width = 310;
     47     description_width = 150;
     48     available_width = 400;
     49     OmniboxPopupModel::ComputeMatchMaxWidths(
     50         contents_width, separator_width, description_width, available_width,
     51         true, &contents_max_width, &description_max_width);
     52     OmniboxPopupModel::ComputeMatchMaxWidths(
     53         310, separator_width, 150, 400, true, &contents_max_width,
     54         &description_max_width);
     55     EXPECT_EQ(kMinimumContentsWidth, contents_max_width);
     56     EXPECT_EQ(available_width - kMinimumContentsWidth - separator_width,
     57               description_max_width);
     58 
     59     // Contents takes all available space.
     60     contents_width = 400;
     61     description_width = 0;
     62     available_width = 200;
     63     OmniboxPopupModel::ComputeMatchMaxWidths(
     64         contents_width, separator_width, description_width, available_width,
     65         true, &contents_max_width, &description_max_width);
     66     EXPECT_EQ(contents_width, contents_max_width);
     67     EXPECT_EQ(0, description_max_width);
     68 
     69     // Half and half.
     70     contents_width = 395;
     71     description_width = 395;
     72     available_width = 700;
     73     OmniboxPopupModel::ComputeMatchMaxWidths(
     74         contents_width, separator_width, description_width, available_width,
     75         true, &contents_max_width, &description_max_width);
     76     EXPECT_EQ(345, contents_max_width);
     77     EXPECT_EQ(345, description_max_width);
     78 
     79     // When we disallow shrinking the contents, it should get as much space as
     80     // it wants.
     81     contents_width = 395;
     82     description_width = 395;
     83     available_width = 700;
     84     OmniboxPopupModel::ComputeMatchMaxWidths(
     85         contents_width, separator_width, description_width, available_width,
     86         false, &contents_max_width, &description_max_width);
     87     EXPECT_EQ(contents_width, contents_max_width);
     88     EXPECT_EQ((available_width - contents_width - separator_width),
     89               description_max_width);
     90 
     91     // (available_width - separator_width) is odd, so contents gets the extra
     92     // pixel.
     93     contents_width = 395;
     94     description_width = 395;
     95     available_width = 699;
     96     OmniboxPopupModel::ComputeMatchMaxWidths(
     97         contents_width, separator_width, description_width, available_width,
     98         true, &contents_max_width, &description_max_width);
     99     EXPECT_EQ(345, contents_max_width);
    100     EXPECT_EQ(344, description_max_width);
    101 
    102     // Not enough space to draw anything.
    103     contents_width = 1;
    104     description_width = 1;
    105     available_width = 0;
    106     OmniboxPopupModel::ComputeMatchMaxWidths(
    107         contents_width, separator_width, description_width, available_width,
    108         true, &contents_max_width, &description_max_width);
    109     EXPECT_EQ(0, contents_max_width);
    110     EXPECT_EQ(0, description_max_width);
    111 }
    112 
    113