Question

9.7. 测试

9.7.1. balanceOf

			
it("should return the balance of token owner", function() {
  var token;
  return Token.deployed().then(function(instance){
    token = instance;
    return token.balanceOf.call(accounts[0]);
  }).then(function(result){
    assert.equal(result.toNumber(), 1000000, 'balance is wrong');
  })
});
			
			

9.7.2. transfer

			
it("should transfer right token", function() {
  var token;
  return Token.deployed().then(function(instance){
    token = instance;
    return token.transfer(accounts[1], 500000);
  }).then(function(){
    return token.balanceOf.call(accounts[0]);
  }).then(function(result){
    assert.equal(result.toNumber(), 500000, 'accounts[0] balance is wrong');
    return token.balanceOf.call(accounts[1]);
  }).then(function(result){
    assert.equal(result.toNumber(), 500000, 'accounts[1] balance is wrong');
  })
});			
			
			

transferFrom

			
it("should give accounts[1] authority to spend account[0]'s token", function() {
  var token;
  return Token.deployed().then(function(instance){
   token = instance;
   return token.approve(accounts[1], 200000);
  }).then(function(){
   return token.allowance.call(accounts[0], accounts[1]);
  }).then(function(result){
   assert.equal(result.toNumber(), 200000, 'allowance is wrong');
   return token.transferFrom(accounts[0], accounts[2], 200000, {from: accounts[1]});
  }).then(function(){
   return token.balanceOf.call(accounts[0]);
  }).then(function(result){
   assert.equal(result.toNumber(), 300000, 'accounts[0] balance is wrong');
   return token.balanceOf.call(accounts[1]);
  }).then(function(result){
   assert.equal(result.toNumber(), 500000, 'accounts[1] balance is wrong');
   return token.balanceOf.call(accounts[2]);
  }).then(function(result){
   assert.equal(result.toNumber(), 200000, 'accounts[2] balance is wrong');
  })
});
			
			

Transfer Event

			
it("should show the transfer event", function() {
  var token;
  return Token.deployed().then(function(instance){
    token = instance;
    return token.transfer(accounts[1], 100000);
  }).then(function(result){
    console.log(result.logs[0].event)
  })
});