Unify test suites

1 files changed, 114 insertions, 0 deletions

diff --git a/test/unit/util_test.js b/test/unit/util_test.js
new file mode 100644
index 000000000..7f8103d3b
--- /dev/null
+++ b/test/unit/util_test.js
@@ -0,0 +1,114 @@
+var assert = require('assert')
+var sinon = require('sinon')
+const ethUtil = require('ethereumjs-util')
+
+var path = require('path')
+var util = require(path.join(__dirname, '..', '..', 'ui', 'app', 'util.js'))
+
+describe('util', function() {
+  var ethInWei = '1'
+  for (var i = 0; i < 18; i++ ) { ethInWei += '0' }
+
+  beforeEach(function() {
+    this.sinon = sinon.sandbox.create()
+  })
+
+  afterEach(function() {
+    this.sinon.restore()
+  })
+
+  describe('numericBalance', function() {
+
+    it('should return a BN 0 if given nothing', function() {
+      var result = util.numericBalance()
+      assert.equal(result.toString(10), 0)
+    })
+
+    it('should work with hex prefix', function() {
+      var result = util.numericBalance('0x012')
+      assert.equal(result.toString(10), '18')
+    })
+
+    it('should work with no hex prefix', function() {
+      var result = util.numericBalance('012')
+      assert.equal(result.toString(10), '18')
+    })
+
+  })
+
+  describe('#ethToWei', function() {
+
+    it('should take an eth BN, returns wei BN', function() {
+      var input = new ethUtil.BN(1, 10)
+      var result = util.ethToWei(input)
+      assert.equal(result, ethInWei, '18 zeroes')
+    })
+
+  })
+
+  describe('#weiToEth', function() {
+
+    it('should take a wei BN and return an eth BN', function() {
+    var result = util.weiToEth(new ethUtil.BN(ethInWei))
+    assert.equal(result, '1', 'equals 1 eth')
+    })
+
+  })
+
+  describe('#formatBalance', function() {
+
+    it('when given nothing', function() {
+      var result = util.formatBalance()
+      assert.equal(result, 'None', 'should return "None"')
+    })
+
+    it('should return eth as string followed by ETH', function() {
+      var input = new ethUtil.BN(ethInWei, 10).toJSON()
+      var result = util.formatBalance(input)
+      assert.equal(result, '1.0000 ETH')
+    })
+
+    it('should return eth as string followed by ETH', function() {
+      var input = new ethUtil.BN(ethInWei, 10).div(new ethUtil.BN('2', 10)).toJSON()
+      var result = util.formatBalance(input)
+      assert.equal(result, '0.5000 ETH')
+    })
+
+    it('should display four decimal points', function() {
+      var input = "0x128dfa6a90b28000"
+      var result = util.formatBalance(input)
+      assert.equal(result, '1.3370 ETH')
+    })
+
+  })
+
+  describe('#normalizeToWei', function() {
+    it('should convert an eth to the appropriate equivalent values', function() {
+      var valueTable = {
+        wei:   '1000000000000000000',
+        kwei:  '1000000000000000',
+        mwei:  '1000000000000',
+        gwei:  '1000000000',
+        szabo: '1000000',
+        finney:'1000',
+        ether: '1',
+        kether:'0.001',
+        mether:'0.000001',
+        // AUDIT: We're getting BN numbers on these ones.
+        // I think they're big enough to ignore for now.
+        // gether:'0.000000001',
+        // tether:'0.000000000001',
+      }
+      var oneEthBn = new ethUtil.BN(ethInWei, 10)
+
+      for(var currency in valueTable) {
+
+        var value = new ethUtil.BN(valueTable[currency], 10)
+        var output = util.normalizeToWei(value, currency)
+        assert.equal(output.toString(10), valueTable.wei, `value of ${output.toString(10)} ${currency} should convert to ${oneEthBn}`)
+
+      }
+    })
+  })
+
+})