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Tests for the getTileData method.

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Tests pass on Chrome 17, Firefox 10, IE 8, and IE 6.
This commit is contained in:
Tim Schaub
2012-03-08 19:16:09 -06:00
parent 46054b8543
commit 021ad521a8
2 changed files with 127 additions and 1 deletions
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2
lib/OpenLayers/Layer/Grid.js
View File

@@ -460,7 +460,7 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
// index of tile in grid
var col = Math.floor(dtx);
var row = Math.floor(dty);
if (row < numRows) {
if (row >= 0 && row < numRows) {
var tile = this.grid[row][col];
if (tile) {
data = {

126
tests/Layer/Grid.html
View File

@@ -1365,6 +1365,132 @@
map.destroy();
});
}
function test_getGridData(t) {
t.plan(12);
var layer = new OpenLayers.Layer.Grid(null, null, null, {
isBaseLayer: true, getURL: function() {
return "/bogus/path/to/tile";
}
});
var map = new OpenLayers.Map({
div: "map",
layers: [layer],
controls: [],
center: [0, 0],
zoom: 1
});
// get tile data for [0, 0]
var data = layer.getTileData({lon: 0, lat: 0});
t.ok(data && data.tile, "[0, 0]: got tile data");
t.eq(data.i, 0, "[0, 0]: i");
t.eq(data.j, 128, "[0, 0]: j");
t.ok(
data.tile.bounds.equals({left: 0, bottom: -90, right: 180, top: 90}),
"[0, 0]: tile bounds " + data.tile.bounds.toString()
);
// get tile data for [-110, 45]
data = layer.getTileData({lon: -110, lat: 45});
t.ok(data && data.tile, "[-110, 45]: got tile data");
t.eq(data.i, 99, "[-110, 45]: i");
t.eq(data.j, 64, "[-110, 45]: j");
t.ok(
data.tile.bounds.equals({left: -180, bottom: -90, right: 0, top: 90}),
"[-110, 45]: tile bounds " + data.tile.bounds.toString()
);
// get tile data for [0, 300] (north of grid)
data = layer.getTileData({lon: 0, lat: 300})
t.eq(data, null, "[0, 300]: north of grid");
// get tile data for [400, 0] (east of grid)
data = layer.getTileData({lon: 400, lat: 0})
t.eq(data, null, "[400, 0]: east of grid");
// get tile data for [0, -500] (south of grid)
data = layer.getTileData({lon: 0, lat: -500})
t.eq(data, null, "[0, -500]: south of grid");
// get tile data for [-200, 0] (west of grid)
data = layer.getTileData({lon: -200, lat: 0})
t.eq(data, null, "[-200, 0]: west of grid");
map.destroy();
}
function test_getGridData_wrapped(t) {
t.plan(18);
var layer = new OpenLayers.Layer.Grid(null, null, null, {
isBaseLayer: true, getURL: function() {
return "/bogus/path/to/tile";
},
wrapDateLine: true
});
var map = new OpenLayers.Map({
div: "map",
layers: [layer],
controls: [],
center: [-50, 0],
zoom: 1
});
// get tile data for [0, 0]
var data = layer.getTileData({lon: 0, lat: 0});
t.ok(data && data.tile, "[0, 0]: got tile data");
t.eq(data.i, 0, "[0, 0]: i");
t.eq(data.j, 128, "[0, 0]: j");
t.ok(
data.tile.bounds.equals({left: 0, bottom: -90, right: 180, top: 90}),
"[0, 0]: tile bounds " + data.tile.bounds.toString()
);
// get tile data for [-110, 45]
data = layer.getTileData({lon: -110, lat: 45});
t.ok(data && data.tile, "[-110, 45]: got tile data");
t.eq(data.i, 99, "[-110, 45]: i");
t.eq(data.j, 64, "[-110, 45]: j");
t.ok(
data.tile.bounds.equals({left: -180, bottom: -90, right: 0, top: 90}),
"[-110, 45]: tile bounds " + data.tile.bounds.toString()
);
// get tile data for [0, 300] (north of grid)
data = layer.getTileData({lon: 0, lat: 300})
t.eq(data, null, "[0, 300]: north of grid");
// get tile data for [400, 0] (equivalent to [40, 0] and visible on map)
data = layer.getTileData({lon: 400, lat: 0})
t.ok(data && data.tile, "[400, 0]: got tile data");
t.eq(data.i, 56, "[400, 0]: i");
t.eq(data.j, 128, "[400, 0]: j");
t.ok(
data.tile.bounds.equals({left: 0, bottom: -90, right: 180, top: 90}),
"[400, 0]: tile bounds " + data.tile.bounds.toString()
);
// get tile data for [0, -500] (south of grid)
data = layer.getTileData({lon: 0, lat: -500})
t.eq(data, null, "[0, -500]: south of grid");
// get tile data for [-200, 0] (equivalent to [160, 0] and wrapped to west side map)
data = layer.getTileData({lon: -200, lat: 0})
t.ok(data && data.tile, "[-200, 0]: got tile data");
t.eq(data.i, 227, "[-200, 0]: i");
t.eq(data.j, 128, "[-200, 0]: j");
t.ok(
data.tile.bounds.equals({left: 0, bottom: -90, right: 180, top: 90}),
"[-200, 0]: tile bounds " + data.tile.bounds.toString()
);
map.destroy();
}
</script>
</head>
<body>