test exchange & create show

test/test-contract.js

@@ -4,17 +4,18 @@ const ShowTrader = artifacts.require('ShowTrader')
 
 contract('ShowTrader Test', (accounts) => {
     let trader
-    const showName = '1st show'
     const danceData = '0x111000'
-    const musicData = '0x111000'
+    const musicData = '0x000111'
     it('should create 1 show', () => {
+        const player = accounts[0]
+        const showName = '1st show'
         return ShowTrader.deployed()
         .then((instance) => {
             trader = instance
-            return trader.createFirstShow(showName, danceData, musicData, { from: accounts[0] })
+            return trader.createFirstShow(showName, danceData, musicData, { from: player })
         })
         .then(() => {
-            return trader.getShowsByOwner.call(accounts[0])
+            return trader.getShowsByOwner.call(player)
         })
         .then((shows) => {
             const id = shows[0].toNumber()
@@ -26,4 +27,47 @@ contract('ShowTrader Test', (accounts) => {
             assert.equal(show[2], musicData)
         })
     })
+    // The second test begin...
+    it('shoud exchange 2 shows', () => {
+        const name1 = 'show1'
+        const name2 = 'show2'
+        const player1 = accounts[1] // The account[0] is used for the 1st test
+        // Note: 'VM Exception while processing transaction: revert',
+        // usually means that the require() statement is not met
+        const player2 = accounts[2]
+        let id1
+        let id2
+        return ShowTrader.deployed()
+        .then((instance) => {
+            trader = instance
+            return trader.createFirstShow(name1, danceData, musicData, { from: player1 })
+        })
+        .then(() => {
+            return trader.createFirstShow(name2, danceData, musicData, { from: player2 })
+        })
+        .then(() => {
+            return trader.getShowsByOwner.call(player1)
+        })
+        .then((shows1) => {
+            id1 = shows1[0].toNumber()
+            return trader.getShowsByOwner.call(player2)
+        })
+        .then((shows2) => {
+            id2 = shows2[0].toNumber()
+            return trader.wantToExchange(id1, id2, { from: player1 })
+        })
+        .then(() => {
+            return trader.wantToExchange(id2, id1, { from: player2 })
+        })
+        .then(() => {
+            return trader.showToOwner(id1)
+        })
+        .then((owner1) => {
+            assert.equal(owner1, player2, 'owner of show1 should be player2!')
+            return trader.showToOwner(id2)
+        })
+        .then((owner2) => {
+            assert.equal(owner2, player1, 'owner of show2 should be player1!')
+        })
+    })
 })