81 lines
2.8 KiB
JavaScript
81 lines
2.8 KiB
JavaScript
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const Counter = artifacts.require("Counter")
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contract('Counter', ([one, two, three]) => {
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console.log(one, two, three)
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let counter
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beforeEach(async() => {
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counter = await Counter.new()
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console.log('Counter:', counter.address)
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console.log('Current eth:')
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console.log(' - ', await web3.eth.getBalance(one))
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console.log(' - ', await web3.eth.getBalance(two))
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console.log(' - ', await web3.eth.getBalance(three))
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console.log('')
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})
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it('should add', async() => {
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const balanceOne = await web3.eth.getBalance(one)
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const balanceTwo = await web3.eth.getBalance(two)
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const balanceThree = await web3.eth.getBalance(three)
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let count
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await counter.add({ from: one })
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count = await counter.getCounter()
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console.log(count.toString())
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assert.equal(count, '1', 'Counter should be 1')
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assert.notEqual(balanceOne, await web3.eth.getBalance(one), `${one}'s balance should be different`)
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await counter.add({ from: two })
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count = await counter.getCounter()
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console.log(count.toString())
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assert.equal(count, '2', 'Counter should be 2')
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assert.notEqual(balanceTwo, await web3.eth.getBalance(two), `${two}'s balance should be different`)
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await counter.add({ from: three })
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count = await counter.getCounter()
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console.log(count.toString())
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assert.equal(count, '3', 'Counter should be 3')
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assert.notEqual(balanceThree, await web3.eth.getBalance(three), `${three}'s balance should be different`)
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})
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it('should subtract', async() => {
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let count
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await counter.add()
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count = await counter.getCounter()
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console.log(count.toString())
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assert.equal(count, '1', 'Counter should be 1')
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// Use receipt to ensure logs are emitted
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const receipt = await counter.subtract()
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count = await counter.getCounter()
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console.log(count.toString())
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console.log()
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console.log('Subtract tx receipt:', receipt)
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assert.equal(count, '0', 'Counter should be 0')
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assert.equal(receipt.logs[0].event, 'Changed', "Should have emitted 'Changed' event")
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assert.equal(receipt.logs[0].args.counter, '0', "Should have emitted 'Changed' event with counter being 0")
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// Check lifecycle of events
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const contract = new web3.eth.Contract(counter.abi, counter.address)
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const allEvents = await contract.getPastEvents("allEvents", { fromBlock: 0, toBlock: 'latest' })
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const changedEvents = await contract.getPastEvents("Changed", { fromBlock: 0, toBlock: 'latest' })
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console.log('allEvents', allEvents)
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console.log('changedEvents', changedEvents)
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assert.equal(allEvents.length, 3)
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assert.equal(changedEvents.length, 2)
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try {
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await counter.subtract()
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assert.fail('Subtracting past 0 should have reverted')
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} catch (err) {
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console.log()
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console.log('Passed -- was expecting error')
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console.log('Error:', err)
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}
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})
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})
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