tests/auto/quick/qquickcanvasitem/data/tst_context.qml

   1
   2 import QtQuick 2.0
   3 import QtTest 1.0
   4
   5 Canvas {
   6     id: canvas
   7     width: 1
   8     height: 1
   9     contextType: "2d"
  10
  11     property var contextInPaint
  12
  13     SignalSpy {
  14         id: paintedSpy
  15         target: canvas
  16         signalName: "paint"
  17     }
  18
  19     SignalSpy {
  20         id: contextSpy
  21         target: canvas
  22         signalName: "contextChanged"
  23     }
  24
  25     onPaint: {
  26         contextInPaint = context;
  27     }
  28
  29     TestCase {
  30         name: "ContextTypeStored"
  31         when: windowShown
  32
  33         function test_contextType() {
  34             compare(canvas.contextType, "2d");
  35         }
  36     }
  37
  38     TestCase {
  39         name: "ContextValidWhenTypePredefined"
  40         when: canvas.available
  41
  42         function test_context() {
  43             // Wait for the context to become active
  44             wait(100);
  45             compare(contextSpy.count, 1);
  46
  47             // Context is available
  48             verify(canvas.context)
  49         }
  50
  51         function test_contextIsConsistent() {
  52             // Wait for the context to become active
  53             wait(100);
  54             compare(contextSpy.count, 1);
  55
  56             // getContext("2d") is the same as the context property
  57             compare(canvas.getContext("2d"), canvas.context);
  58         }
  59
  60         function test_paintHadContext() {
  61             // Make there was a paint signal
  62             wait(100);
  63             verify(paintedSpy.count, 1)
  64
  65             // Paint was called with a valid context when contextType is
  66             // specified
  67             verify(canvas.contextInPaint)
  68
  69             // paints context was the correct one
  70             compare(canvas.contextInPaint, canvas.getContext("2d"));
  71         }
  72    }
  73 }