piskel/test/js/testutils/TestUtils.js

44 lines
No EOL
1.2 KiB
JavaScript

(function () {
var ns = $.namespace('test.testutils');
/**
* Frame.createFromGrid accepts grids that are rotated by 90deg from
* the visual/usual way. (column-based grid)
*
* For testing, it's easier for be able to specify a row-based grid, because
* it visually matches what the image will look like.
*
* For instance :
*
* [[black, black, black],
* [white, white, white]]
*
* we expect this to be a 3x2 image, one black line above a white line.
*
* However Frame.createFromGrid needs the following input to create such an image :
*
* [[black, white],
* [black, white],
* [black, white]]
*
* This helper will build the second array from the first array.
*/
ns.toFrameGrid = function (normalGrid) {
var frameGrid = [];
var w = normalGrid[0].length;
var h = normalGrid.length;
for (var x = 0 ; x < w ; x++) {
frameGrid[x] = [];
for (var y = 0 ; y < h ; y++) {
frameGrid[x][y] = normalGrid[y][x];
}
}
return frameGrid;
};
ns.frameEqualsGrid = function (frame, grid) {
frame.forEachPixel(function (color, col, row) {
expect(color).toBe(grid[row][col]);
});
};
})();