test_printer_default_settings.html (2420B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> 5 </head> 6 <body onload="run()"> 7 <script type="application/javascript"> 8 9 SimpleTest.waitForExplicitFinish(); 10 11 async function run() { 12 try { 13 let printerList = Cc["@mozilla.org/gfx/printerlist;1"].getService( 14 Ci.nsIPrinterList 15 ); 16 let printers = await printerList.printers; 17 if (printers.length == 0) { 18 ok(true, "There were no printers to iterate through."); 19 } 20 21 for (let printer of printers) { 22 printer.QueryInterface(Ci.nsIPrinter); 23 info(printer.name); 24 info("duplex(" + await printer.supportsDuplex + ")"); 25 26 const printerInfo = await printer.printerInfo; 27 const settings = printerInfo.defaultSettings; 28 settings.QueryInterface(Ci.nsIPrintSettings); 29 30 is(typeof settings.printerName, "string", "Printer name should be a string."); 31 is(settings.printerName, printer.name, "Print settings' printer should match the printer that created them."); 32 33 is(typeof settings.paperId, "string", "Paper ID should never be null."); 34 is(typeof settings.paperWidth, "number", "Paper width should never be null."); 35 is(typeof settings.paperHeight, "number", "Paper height should never be null."); 36 37 if (settings.paperId != "") { 38 info(`Paper: ${settings.paperId}`); 39 info(`Size: (${settings.paperWidth} x ${settings.paperHeight})`); 40 ok(settings.paperWidth > 0.0, "Paper width should be greater than zero."); 41 ok(settings.paperHeight > 0.0, "Paper height should be greater than zero."); 42 } 43 44 ok(settings.marginTop >= 0.0, "Paper margins should be greater than or equal to zero."); 45 ok(settings.marginRight >= 0.0, "Paper margins should be greater than or equal to zero."); 46 ok(settings.marginBottom >= 0.0, "Paper margins should be greater than or equal to zero."); 47 ok(settings.marginLeft >= 0.0, "Paper margins should be greater than or equal to zero."); 48 49 is(settings.printInColor, await printer.supportsColor, "Print settings' color mode should match the printer's color support."); 50 51 ok(settings.isInitializedFromPrinter, "Print settings were initialized from printer"); 52 ok(!settings.isInitializedFromPrefs); 53 } 54 } catch (e) { 55 ok(false, `Shouldn't throw: ${e}`); 56 console.error(e); 57 } 58 SimpleTest.finish(); 59 } 60 61 </script> 62 </body> 63 </html>