| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>EditContext: The TextFormat property</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script> |
| test(function() { |
| const textFormat = new TextFormat(); |
| |
| assert_equals(textFormat.rangeStart, 0); |
| assert_equals(textFormat.rangeEnd, 0); |
| assert_equals(textFormat.underlineStyle, "none"); |
| assert_equals(textFormat.underlineThickness, "none"); |
| }, 'Test default values of TextFormat attributes'); |
| |
| test(function(){ |
| const validUnderlineStyles = ["none", "solid", "dotted", "dashed", "wavy"]; |
| const validUnderlineThicknesses = ["none", "thin", "thick"]; |
| |
| // Invalid value should throw type error. |
| assert_throws_js(TypeError, function() { |
| const textFormat = new TextFormat({underlineStyle: "Solid"}); |
| }, 'TextFormat must throw a TypeError when underlineStyle is set to an invalid value'); |
| assert_throws_js(TypeError, function() { |
| const textFormat = new TextFormat({underlineThickness: "Thick"}); |
| }, 'TextFormat must throw a TypeError when underlineThickness is set to an invalid value'); |
| |
| // Verify valid values. |
| for (const style of validUnderlineStyles) { |
| const textFormat = new TextFormat({underlineStyle: style}); |
| assert_equals(textFormat.underlineStyle, style, `underlineStyle should accept "${style}"`); |
| assert_equals(textFormat.underlineThickness, "none", 'default value of underlineThickness should be "none"'); |
| } |
| for (const thickness of validUnderlineThicknesses) { |
| const textFormat = new TextFormat({underlineThickness: thickness}); |
| assert_equals(textFormat.underlineStyle, "none", 'default value of underlineStyle should be "none"'); |
| assert_equals(textFormat.underlineThickness, thickness, `underlineThickness should accept "${thickness}"`); |
| } |
| }, 'Test valid values of TextFormat underlineStyle and underlineThickness'); |
| </script> |
| </body> |
| </html> |
