calc-letter-spacing.html (2572B)
1 <!DOCTYPE html> 2 3 <meta charset="UTF-8"> 4 5 <title>CSS Values and Units Test: computed value of 'letter-spacing' when specified with calc() function</title> 6 7 <!-- 8 9 Original test is: 10 11 https://chromium.googlesource.com/chromium/src/+/c825d655f6aaf73484f9d56e9012793f5b9668cc/third_party/WebKit/LayoutTests/css3/calc/letter-spacing.html 12 13 --> 14 15 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> 16 <link rel="help" href="https://www.w3.org/TR/css3-values/#calc-computed-value"> 17 18 <meta name="flags" content="invalid"> 19 <meta content="This test verifies how 6 calc() functions are computed for 'letter-spacing'." name="assert"> 20 21 <script src="/resources/testharness.js"></script> 22 23 <script src="/resources/testharnessreport.js"></script> 24 25 <div id="target"></div> 26 27 <script> 28 function startTesting() 29 { 30 31 function verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) 32 { 33 34 var elemTarget = document.getElementById("target"); 35 36 test(function() 37 { 38 39 elemTarget.style.setProperty(property_name, initial_value); 40 41 /* 42 In exactly 4 out of the 6 sub-tests, the initial_value will 43 act as a fallback value because the calc() function in the 44 specified value generates an invalid value. Since we are 45 running 6 consecutive tests on the same element, then 46 it is necessary to 'reset' its property to an initial 47 value. 48 */ 49 50 elemTarget.style.setProperty(property_name, specified_value); 51 52 assert_equals(getComputedStyle(elemTarget)[property_name], expected_value, specified_value + ' should compute to ' + expected_value); 53 54 }, description); 55 } 56 57 /* verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) */ 58 59 verifyComputedStyle("letter-spacing", "20px", "calc(1 + 1px)", "20px", "testing letter-spacing: calc(1 + 1px)"); 60 61 verifyComputedStyle("letter-spacing", "20px", "calc(1 + 100%)", "20px", "testing letter-spacing: calc(1 + 100%)"); 62 63 verifyComputedStyle("letter-spacing", "20px", "calc(100%)", "100%", "testing letter-spacing: calc(100%)"); 64 65 verifyComputedStyle("letter-spacing", "20px", "calc(10px) bla", "20px", "testing letter-spacing: calc(10px) bla"); 66 67 verifyComputedStyle("letter-spacing", "20px", "calc(bla) 10px", "20px", "testing letter-spacing: calc(bla) 10px"); 68 69 verifyComputedStyle("letter-spacing", "initial", "calc(10px)", "10px", "testing letter-spacing: calc(10px)"); 70 71 } 72 73 startTesting(); 74 75 </script>