third_party/WebKit/LayoutTests/printing/script-tests/page-break-before-avoid.js

   1 description("Test for page-break-before:avoid");
   2
   3 function test()
   4 {
   5     createBlockWithRatioToPageHeight("page1", 0.5).style.pageBreakBefore = "always";
   6     // A block 'page2-1' must move to the next page because the following block 'page2-2'
   7     // has 'page-break-before:avoid' and both blocks cannot be placed in the current page
   8     // at the same time.
   9     createBlockWithRatioToPageHeight("page2-1", 0.3);
  10     createBlockWithRatioToPageHeight("page2-2", 0.3).style.pageBreakBefore = "avoid";
  11
  12     createBlockWithRatioToPageHeight("page3-1", 0.5).style.pageBreakBefore = "always";
  13     // A page break can occur inside of 'page3-3' block because it has child elements.
  14     createBlockWithRatioToPageHeight("page3-2", 0.3);
  15     createBlockWithNumberOfLines("page3-3", 10).style.pageBreakBefore = "avoid";
  16
  17     createBlockWithRatioToPageHeight("page5", 0.5).style.pageBreakBefore = "always";
  18     // It seems unrealistic, but block 'page6-1' must move to the next page.
  19     createBlockWithRatioToPageHeight("page6-1", 0.1);
  20     createBlockWithRatioToPageHeight("page6-2", 0.1).style.pageBreakBefore = "avoid";
  21     createBlockWithRatioToPageHeight("page6-3", 0.1).style.pageBreakBefore = "avoid";
  22     createBlockWithRatioToPageHeight("page6-4", 0.1).style.pageBreakBefore = "avoid";
  23     createBlockWithRatioToPageHeight("page6-5", 0.1).style.pageBreakBefore = "avoid";
  24     createBlockWithRatioToPageHeight("page6-6", 0.1).style.pageBreakBefore = "avoid";
  25     createBlockWithRatioToPageHeight("page6-7", 0.1).style.pageBreakBefore = "avoid";
  26
  27     // We don't define where block 'page7or8-1' is placed.
  28     createBlockWithRatioToPageHeight("page7", 0.5).style.pageBreakBefore = "always";
  29     createBlockWithRatioToPageHeight("page7or8-1", 0.1);
  30     createBlockWithRatioToPageHeight("page7or8-2", 3).style.pageBreakBefore = "avoid";
  31     createBlockWithRatioToPageHeight("page10", 0.1);
  32
  33     pageNumberForElementShouldBe("page1", 1);
  34     pageNumberForElementShouldBe("page2-1", 2);
  35     pageNumberForElementShouldBe("page2-2", 2);
  36
  37     pageNumberForElementShouldBe("page3-1", 3);
  38     pageNumberForElementShouldBe("page3-2", 3);
  39     pageNumberForElementShouldBe("page3-3", 3);
  40
  41     pageNumberForElementShouldBe("page5", 5);
  42     pageNumberForElementShouldBe("page6-1", 6);
  43     // Omit tests for intermediate blocks.
  44     pageNumberForElementShouldBe("page6-7", 6);
  45
  46     pageNumberForElementShouldBe("page7", 7);
  47     pageNumberForElementShouldBe("page10", 10);
  48
  49     document.body.removeChild(document.getElementById("sandbox"));
  50 }
  51
  52 var successfullyParsed = true;