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      1 <script>
      2     var s = "this is a string";
      3     var i = 5;
      4     var ni = -5;
      5     var f = 3.14159;
      6     var o = { prop1: 1, prop2: 2 };
      7     var specifiers = {
      8         s: "string",
      9         i: "integer",
     10         d: "integer",
     11         f: "float",
     12         "0.3f": "float with precision",
     13         o: "object",
     14         z: "unsupported",
     15     };
     16 
     17     function test(args) {
     18         var functions = ["log", "debug"];
     19         for (var i = 0; i < functions.length; ++i) {
     20             console.info("console." + functions[i] + "(%s)", args);
     21             try {
     22                 eval("console." + functions[i] + "(" + args + ")");
     23             } catch (e) {
     24                 console.error(e);
     25             }
     26         }
     27     }
     28 
     29     function testAllSpecifiers(value, description) {
     30         for (var specifier in specifiers)
     31             test("'Format " + description + " as " + specifiers[specifier] + ": %" + specifier + "', " + value + "");
     32     }
     33 
     34     function runTests() {
     35         var values = [
     36             { value: "window.noSuchVariable", description: "undefined" },
     37             { value: "s", description: "string" },
     38             { value: "i", description: "positive integer" },
     39             { value: "ni", description: "negative integer" },
     40             { value: "f", description: "float" },
     41             { value: "o", description: "object" },
     42             { value: "document.body", description: "body" },
     43             { value: "/test/", description: "RegExp" },
     44             { value: "true", description: "boolean" },
     45             { value: "null", description: "null" },
     46         ];
     47 
     48         for (var i = 0; i < values.length; ++i)
     49             testAllSpecifiers(values[i].value, values[i].description);
     50 
     51         var tests = [
     52             "'simple test'",
     53             "'multiple', 'parameters', 'should', 'be', 'concatenated'",
     54             "document",
     55             "document, document.body, window, window.location",
     56             "document, document.body, 'hello', 'goodbye', window.location",
     57             "'Format string with fewer specifiers than parameters: %o %i %f', document.body, i, f, ni, o",
     58             "'Format string with more specifiers than parameters: %o %i %f %i %o', document.body, i, f",
     59         ];
     60 
     61         for (var i = 0; i < tests.length; ++i)
     62             test(tests[i]);
     63 
     64     }
     65 </script>
     66 <p>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=17228">Bug 17228: console.{log,warn,info,error} should support format strings, variable arguments</a>.</p>
     67 <p>Open the Inspector (right-click and choose "Inspect Element"), then click the "Run Tests" button.</p>
     68 <button onclick="runTests()">Run Tests</button>
     69