mirror of
https://github.com/scratchfoundation/scratch-vm.git
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277 lines
11 KiB
JavaScript
277 lines
11 KiB
JavaScript
const test = require('tap').test;
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const Looks = require('../../src/blocks/scratch3_looks');
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const Runtime = require('../../src/engine/runtime');
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const Sprite = require('../../src/sprites/sprite.js');
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const RenderedTarget = require('../../src/sprites/rendered-target.js');
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const util = {
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target: {
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currentCostume: 0, // Internally, current costume is 0 indexed
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getCostumes: function () {
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return this.sprite.costumes;
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},
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sprite: {
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costumes: [
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{name: 'first name'},
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{name: 'second name'},
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{name: 'third name'}
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]
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},
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_customState: {},
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getCustomState: () => util.target._customState
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}
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};
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const fakeRuntime = {
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getTargetForStage: () => util.target, // Just return the dummy target above.
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on: () => {} // Stub out listener methods used in constructor.
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};
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const blocks = new Looks(fakeRuntime);
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/**
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* Test which costume index the `switch costume`
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* block will jump to given an argument and array
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* of costume names. Works for backdrops if isStage is set.
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*
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* @param {string[]} costumes List of costume names as strings
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* @param {string|number|boolean} arg The argument to provide to the block.
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* @param {number} [currentCostume=1] The 1-indexed default costume for the sprite to start at.
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* @param {boolean} [isStage=false] Whether the sprite is the stage
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* @return {number} The 1-indexed costume index on which the sprite lands.
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*/
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const testCostume = (costumes, arg, currentCostume = 1, isStage = false) => {
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const rt = new Runtime();
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const looks = new Looks(rt);
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const sprite = new Sprite(null, rt);
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const target = new RenderedTarget(sprite, rt);
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sprite.costumes = costumes.map(name => ({name: name}));
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target.currentCostume = currentCostume - 1; // Convert to 0-indexed.
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if (isStage) {
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target.isStage = true;
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rt.addTarget(target);
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looks.switchBackdrop({BACKDROP: arg}, {target});
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} else {
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looks.switchCostume({COSTUME: arg}, {target});
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}
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return target.currentCostume + 1; // Convert to 1-indexed.
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};
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/**
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* Test which backdrop index the `switch backdrop`
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* block will jump to given an argument and array
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* of backdrop names.
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*
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* @param {string[]} backdrops List of backdrop names as strings
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* @param {string|number|boolean} arg The argument to provide to the block.
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* @param {number} [currentCostume=1] The 1-indexed default backdrop for the stage to start at.
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* @return {number} The 1-indexed backdrop index on which the stage lands.
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*/
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const testBackdrop = (backdrops, arg, currentCostume = 1) => testCostume(backdrops, arg, currentCostume, true);
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test('switch costume block runs correctly', t => {
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// Non-existant costumes do nothing
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], 'e', 3), 3);
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// Numeric arguments are always the costume index
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// String arguments are treated as costume names, and coerced to
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// a costume index as a fallback
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t.strictEqual(testCostume(['a', 'b', 'c', '2'], 2), 2);
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t.strictEqual(testCostume(['a', 'b', 'c', '2'], '2'), 4);
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t.strictEqual(testCostume(['a', 'b', 'c'], '2'), 2);
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// 'previous costume' and 'next costume' increment/decrement
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], 'previous costume', 3), 2);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], 'next costume', 2), 3);
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// 'previous costume' and 'next costume' can be overriden
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t.strictEqual(testCostume(['a', 'previous costume', 'c', 'd'], 'previous costume'), 2);
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t.strictEqual(testCostume(['next costume', 'b', 'c', 'd'], 'next costume'), 1);
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// NaN, Infinity, and true are the first costume
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], NaN, 2), 1);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], true, 2), 1);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], Infinity, 2), 1);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], -Infinity, 2), 1);
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// 'previous backdrop' and 'next backdrop' have no effect
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], 'previous backdrop', 3), 3);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], 'next backdrop', 3), 3);
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// Strings with no digits are not numeric
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], ' ', 2), 2);
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// False is 0 (the last costume)
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], false), 4);
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// Booleans are costume names where possible.
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t.strictEqual(testCostume(['a', 'true', 'false', 'd'], false), 3);
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t.strictEqual(testCostume(['a', 'true', 'false', 'd'], true), 2);
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// Costume indices should wrap around.
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], -1), 3);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], -4), 4);
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t.strictEqual(testCostume(['a', 'b', 'c', 'd'], 10), 2);
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t.end();
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});
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test('switch backdrop block runs correctly', t => {
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// Non-existant backdrops do nothing
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], 'e', 3), 3);
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// Difference between string and numeric arguments
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t.strictEqual(testBackdrop(['a', 'b', 'c', '2'], 2), 2);
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t.strictEqual(testBackdrop(['a', 'b', 'c', '2'], '2'), 4);
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// 'previous backdrop' and 'next backdrop' increment/decrement
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], 'previous backdrop', 3), 2);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], 'next backdrop', 2), 3);
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// 'previous backdrop', 'previous backdrop', 'random backdrop' can be overriden
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// Test is deterministic since 'random backdrop' will not pick the same backdrop as currently selected
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t.strictEqual(testBackdrop(['a', 'previous backdrop', 'c', 'd'], 'previous backdrop', 4), 2);
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t.strictEqual(testBackdrop(['next backdrop', 'b', 'c', 'd'], 'next backdrop', 3), 1);
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t.strictEqual(testBackdrop(['random backdrop', 'b', 'c', 'd'], 'random backdrop'), 1);
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// NaN, Infinity, and true are the first costume
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], NaN, 2), 1);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], true, 2), 1);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], Infinity, 2), 1);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], -Infinity, 2), 1);
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// 'previous costume' and 'next costume' have no effect
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], 'previous costume', 3), 3);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], 'next costume', 3), 3);
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// Strings with no digits are not numeric
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], ' ', 2), 2);
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// False is 0 (the last costume)
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], false), 4);
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// Booleans are backdrop names where possible.
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t.strictEqual(testBackdrop(['a', 'true', 'false', 'd'], false), 3);
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t.strictEqual(testBackdrop(['a', 'true', 'false', 'd'], true), 2);
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// Backdrop indices should wrap around.
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], -1), 3);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], -4), 4);
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t.strictEqual(testBackdrop(['a', 'b', 'c', 'd'], 10), 2);
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t.end();
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});
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test('getCostumeNumberName returns 1-indexed costume number', t => {
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util.target.currentCostume = 0; // This is 0-indexed.
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const args = {NUMBER_NAME: 'number'};
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const number = blocks.getCostumeNumberName(args, util);
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t.strictEqual(number, 1);
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t.end();
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});
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test('getCostumeNumberName can return costume name', t => {
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util.target.currentCostume = 0; // This is 0-indexed.
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const args = {NUMBER_NAME: 'name'};
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const name = blocks.getCostumeNumberName(args, util);
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t.strictEqual(name, 'first name');
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t.end();
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});
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test('getBackdropNumberName returns 1-indexed costume number', t => {
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util.target.currentCostume = 2; // This is 0-indexed.
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const args = {NUMBER_NAME: 'number'};
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const number = blocks.getBackdropNumberName(args, util);
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t.strictEqual(number, 3);
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t.end();
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});
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test('getBackdropNumberName can return costume name', t => {
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util.target.currentCostume = 2; // This is 0-indexed.
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const args = {NUMBER_NAME: 'name'};
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const number = blocks.getBackdropNumberName(args, util);
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t.strictEqual(number, 'third name');
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t.end();
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});
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test('numbers should be rounded properly in say/think', t => {
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const rt = new Runtime();
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const looks = new Looks(rt);
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let expectedSayString;
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rt.addListener('SAY', () => {
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const bubbleState = util.target.getCustomState(Looks.STATE_KEY);
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t.strictEqual(bubbleState.text, expectedSayString);
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});
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expectedSayString = '3.14';
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looks.say({MESSAGE: 3.14159}, util, 'say bubble should round to 2 decimal places');
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looks.think({MESSAGE: 3.14159}, util, 'think bubble should round to 2 decimal places');
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expectedSayString = '3';
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looks.say({MESSAGE: 3}, util, 'say bubble should not add decimal places to integers');
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looks.think({MESSAGE: 3}, util, 'think bubble should not add decimal places to integers');
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expectedSayString = '3.10';
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looks.say({MESSAGE: 3.1}, util, 'say bubble should round to 2 decimal places, even if only 1 is needed');
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looks.think({MESSAGE: 3.1}, util, 'think bubble should round to 2 decimal places, even if only 1 is needed');
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expectedSayString = '0.00125';
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looks.say({MESSAGE: 0.00125}, util, 'say bubble should not round if it would display small numbers as 0');
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looks.think({MESSAGE: 0.00125}, util, 'think bubble should not round if it would display small numbers as 0');
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expectedSayString = '1.99999';
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looks.say({MESSAGE: '1.99999'}, util, 'say bubble should not round strings');
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looks.think({MESSAGE: '1.99999'}, util, 'think bubble should not round strings');
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t.end();
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});
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test('clamp graphic effects', t => {
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const rt = new Runtime();
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const looks = new Looks(rt);
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const expectedValues = {
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brightness: {high: 100, low: -100},
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ghost: {high: 100, low: 0},
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color: {high: 500, low: -500},
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fisheye: {high: 500, low: -500},
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whirl: {high: 500, low: -500},
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pixelate: {high: 500, low: -500},
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mosaic: {high: 500, low: -500}
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};
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const args = [
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{EFFECT: 'brightness', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'brightness', VALUE: -500, CLAMP: 'low'},
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{EFFECT: 'ghost', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'ghost', VALUE: -500, CLAMP: 'low'},
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{EFFECT: 'color', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'color', VALUE: -500, CLAMP: 'low'},
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{EFFECT: 'fisheye', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'fisheye', VALUE: -500, CLAMP: 'low'},
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{EFFECT: 'whirl', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'whirl', VALUE: -500, CLAMP: 'low'},
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{EFFECT: 'pixelate', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'pixelate', VALUE: -500, CLAMP: 'low'},
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{EFFECT: 'mosaic', VALUE: 500, CLAMP: 'high'},
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{EFFECT: 'mosaic', VALUE: -500, CLAMP: 'low'}
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];
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util.target.setEffect = function (effectName, actualValue) {
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const clamp = actualValue > 0 ? 'high' : 'low';
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rt.emit(effectName + clamp, effectName, actualValue);
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};
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for (const arg of args) {
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rt.addListener(arg.EFFECT + arg.CLAMP, (effectName, actualValue) => {
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const expected = expectedValues[arg.EFFECT][arg.CLAMP];
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t.strictEqual(actualValue, expected);
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});
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looks.setEffect(arg, util);
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}
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t.end();
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});
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