piskel/test/js/selection/SelectionManagerTest.js

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describe("SelectionManager suite", function() {
var black = '#000000';
var red = '#ff0000';
var transparent = Constants.TRANSPARENT_COLOR;
var B = black, R = red, T = transparent;
// shortcuts
var toFrameGrid = test.testutils.toFrameGrid;
var frameEqualsGrid = test.testutils.frameEqualsGrid;
// test objects
var selectionManager;
var selection;
var currentFrame;
/**
* @Mock
*/
pskl.app.shortcutService = {
registerShortcut : function () {}
};
/**
* @Mock
*/
var piskelController = {
getCurrentFrame : function () {
return currentFrame;
}
};
beforeEach(function() {
currentFrame = pskl.model.Frame.fromPixelGrid([
[B, R, T],
[R, B, R],
[T, R, B]
]);
selectionManager = new pskl.selection.SelectionManager(piskelController);
selectionManager.init();
selection = new pskl.selection.BaseSelection();
selection.pixels = [];
});
/**
* Check a basic copy paste scenario
*/
it("copy/paste OK", function () {
console.log('[SelectionManager] copy/paste OK');
selectMiddleLine();
console.log('[SelectionManager] ... copy');
selectionManager.copy();
console.log('[SelectionManager] ... check selection content after copy contains correct colors');
expect(selection.pixels.length).toBe(3); // or not to be ... lalalala ... french-only joke \o/
checkContainsPixel(selection.pixels, 1, 0, R);
checkContainsPixel(selection.pixels, 1, 1, B);
checkContainsPixel(selection.pixels, 1, 2, R);
console.log('[SelectionManager] ... move 1 row down');
selection.move(0, 1);
console.log('[SelectionManager] ... check pixels were shifted by two columns forward');
checkContainsPixel(selection.pixels, 2, 0, R);
checkContainsPixel(selection.pixels, 2, 1, B);
checkContainsPixel(selection.pixels, 2, 2, R);
console.log('[SelectionManager] ... paste');
selectionManager.paste();
console.log('[SelectionManager] ... check last line is identical to middle line after paste');
frameEqualsGrid(currentFrame, [
[B, R, T],
[R, B, R],
[R, B, R]
]);
});
/**
* Check a basic cut paste scenario
*/
it("cut OK", function () {
console.log('[SelectionManager] cut OK');
selectMiddleLine();
console.log('[SelectionManager] ... cut');
selectionManager.cut();
console.log('[SelectionManager] ... check middle line was cut in the source frame');
frameEqualsGrid(currentFrame, [
[B, R, T],
[T, T, T],
[T, R, B]
]);
console.log('[SelectionManager] ... paste');
selectionManager.paste();
console.log('[SelectionManager] ... check middle line was restored by paste');
frameEqualsGrid(currentFrame, [
[B, R, T],
[R, B, R],
[T, R, B]
]);
});
/**
* Check a copy paste scenario that goes out of the frame boundaries for copying and for pasting.
*/
it("copy/paste OK out of bounds", function () {
console.log('[SelectionManager] copy/paste OK out of bounds');
selectMiddleLine();
console.log('[SelectionManager] ... move 2 columns to the right');
selection.move(2, 0);
console.log('[SelectionManager] ... copy out of bounds');
selectionManager.copy();
console.log('[SelectionManager] ... check out of bound pixels were replaced by transparent pixels');
checkContainsPixel(selection.pixels, 1, 2, R);
checkContainsPixel(selection.pixels, 1, 3, T);
checkContainsPixel(selection.pixels, 1, 4, T);
console.log('[SelectionManager] ... move one column to the left');
selection.move(-1, 0);
console.log('[SelectionManager] ... check pixels were shifted by one column back');
checkContainsPixel(selection.pixels, 1, 1, R);
checkContainsPixel(selection.pixels, 1, 2, T);
checkContainsPixel(selection.pixels, 1, 3, T);
console.log('[SelectionManager] ... paste out of bounds');
selectionManager.paste();
console.log('[SelectionManager] ... check pixel at (1,1) is red after paste');
frameEqualsGrid(currentFrame, [
[B, R, T],
[R, R, R],
[T, R, B]
]);
});
/**
* Check a cut paste scenario that goes out of the frame boundaries for cutting and for pasting.
*/
it("cut OK out of bounds", function () {
console.log('[SelectionManager] cut OK');
selectMiddleLine();
console.log('[SelectionManager] ... move 2 columns to the right');
selection.move(2, 0);
console.log('[SelectionManager] ... cut out of bounds');
selectionManager.cut();
console.log('[SelectionManager] ... check last pixel of midle line was cut in the source frame');
frameEqualsGrid(currentFrame, [
[B, R, T],
[R, B, T],
[T, R, B]
]);
selection.move(-1, 0);
console.log('[SelectionManager] ... paste out of bounds');
selectionManager.paste();
console.log('[SelectionManager] ... check middle line final state');
frameEqualsGrid(currentFrame, [
[B, R, T],
[R, R, T],
[T, R, B]
]);
});
// Private helpers
var createPixel = function(row, col, color) {
return {
row : row,
col : col,
color : color
};
};
var selectMiddleLine = function () {
console.log('[SelectionManager] ... select middle line');
selection.pixels.push(createPixel(1, 0));
selection.pixels.push(createPixel(1, 1));
selection.pixels.push(createPixel(1, 2));
expect(selectionManager.currentSelection).toBe(null);
console.log('[SelectionManager] ... send SELECTION_CREATED event for the test selection');
$.publish(Events.SELECTION_CREATED, [selection]);
expect(selectionManager.currentSelection).toBe(selection);
};
var checkContainsPixel = function (pixels, row, col, color) {
var containsPixel = pixels.some(function (pixel) {
return pixel.row == row && pixel.col == col && pixel.color == color;
});
expect(containsPixel).toBe(true);
};
});