Created
May 4, 2016 02:51
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const assert = require('power-assert'); | |
import HistoryStack from './src/models/history-stack'; | |
describe('HistoryStack', ()=> { | |
describe('', ()=> { | |
it('基本', ()=> { | |
let stack = new HistoryStack(); | |
let target = 0; | |
let action = (n)=>{ | |
let old = target; | |
target = n; | |
stack.stock({ | |
down: ()=>{ | |
target = old; | |
}, | |
up: ()=>{ | |
target = n; | |
} | |
}) | |
}; | |
action(1); | |
action(2); | |
action(3); | |
action(4); | |
action(5); | |
assert.equal(target, 5); | |
stack.undo(); | |
assert.equal(target, 4); | |
stack.undo(); | |
assert.equal(target, 3); | |
stack.undo(); | |
assert.equal(target, 2); | |
stack.undo(); | |
assert.equal(target, 1); | |
stack.undo(); | |
assert.equal(target, 0); | |
stack.undo(); | |
assert.equal(target, 0); | |
stack.redo(); | |
assert.equal(target, 1); | |
stack.redo(); | |
assert.equal(target, 2); | |
stack.redo(); | |
assert.equal(target, 3); | |
stack.redo(); | |
assert.equal(target, 4); | |
stack.redo(); | |
assert.equal(target, 5); | |
stack.redo(); | |
assert.equal(target, 5); | |
}); | |
it('アンドゥ後のアクションでリドゥ不可', ()=> { | |
let stack = new HistoryStack(); | |
let target = 0; | |
let action = (n)=>{ | |
let old = target; | |
target = n; | |
stack.stock({ | |
down: ()=>{ | |
target = old; | |
}, | |
up: ()=>{ | |
target = n; | |
} | |
}) | |
}; | |
action(1); | |
action(2); | |
action(3); | |
action(4); | |
action(5); | |
assert.equal(target, 5); | |
stack.undo(); | |
assert.equal(target, 4); | |
stack.undo(); | |
assert.equal(target, 3); | |
action(11); | |
stack.redo(); | |
assert.equal(target, 11); | |
stack.undo(); | |
assert.equal(target, 3); | |
stack.redo(); | |
assert.equal(target, 11); | |
}); | |
it('ヒストリー上限に達すると古いものから消える', ()=> { | |
let stack = new HistoryStack(3); | |
let target = 0; | |
let action = (n)=>{ | |
let old = target; | |
target = n; | |
stack.stock({ | |
down: ()=>{ | |
target = old; | |
}, | |
up: ()=>{ | |
target = n; | |
} | |
}) | |
}; | |
action(1); | |
action(2); | |
action(3); | |
action(4); | |
action(5); | |
assert.equal(target, 5); | |
stack.undo(); | |
assert.equal(target, 4); | |
stack.undo(); | |
assert.equal(target, 3); | |
stack.undo(); | |
assert.equal(target, 2); | |
stack.undo(); | |
assert.equal(target, 2); | |
stack.redo(); | |
assert.equal(target, 3); | |
stack.redo(); | |
assert.equal(target, 4); | |
stack.redo(); | |
assert.equal(target, 5); | |
stack.redo(); | |
assert.equal(target, 5); | |
}); | |
}); | |
}); |
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