New integration tests:

* New tests for autobridging and freeze
* Discrepancy detection tests
* Don't let Mocha suppress load time errors

test/ledger-state-test.coffee

@@ -0,0 +1,152 @@
+################################################################################
+
+async                      = require 'async'
+simple_assert              = require 'assert'
+deep_eq                    = require 'deep-equal'
+testutils                  = require './testutils'
+
+{
+  LedgerVerifier
+  Balance
+}                          = require './ledger-state'
+
+#################################### CONFIG ####################################
+
+config = testutils.init_config()
+
+#################################### HELPERS ###################################
+
+assert = simple_assert
+prettyj = pretty_json =  (v) -> JSON.stringify(v, undefined, 2)
+
+describe 'Balance', ->
+  it 'parses native balances', ->
+    bal = new Balance("1.000")
+    assert.equal bal.is_native, true
+    assert.equal bal.limit, null
+
+  it 'parses iou balances', ->
+    bal = new Balance("1.000/USD/bob")
+    assert.equal bal.is_native, false
+    assert.equal bal.limit, null
+    assert.equal bal.amount.currency().to_json(), 'USD'
+
+  it 'parses iou balances with limits', ->
+    bal = new Balance("1-500/USD/bob")
+    assert.equal bal.is_native, false
+    assert.equal bal.amount.currency().to_json(), 'USD'
+    assert.equal bal.limit.to_json().value, '500'
+    assert.equal bal.amount.to_json().value, '1'
+
+describe 'LedgerVerifier', ->
+  lv = null
+
+  declaration=
+    accounts:
+      bob:
+        balance: ['100.0', '200-500/USD/alice']
+        offers: [['89.0', '100/USD/alice'], ['89.0', '100/USD/alice']]
+
+  # We are using this because mocha and coffee-script is a retarded combination
+  # unfortunately, which terminates the program silently upon any require time
+  # exceptions. TODO: investigate obviously, but for the moment this is an
+  # acceptable workaround.
+  suiteSetup ->
+    remote_dummy = {set_secret: (->)}
+    lv = new LedgerVerifier(declaration, remote_dummy, config, assert)
+
+  it 'tracks xrp balances', ->
+    assert.equal lv.xrp_balances['bob'].to_json(), '100000000'
+
+  it 'tracks iou balances', ->
+    assert.equal lv.iou_balances['bob']['USD/alice'].to_json().value, '200'
+
+  it 'tracks iou trust limits', ->
+    assert.equal lv.trusts['bob']['USD/alice'].to_json().value, '500'
+
+  it 'can verify', ->
+    account_offers = [
+      {
+          "account": "bob",
+          "offers": [
+            {
+              "flags": 65536,
+              "seq": 2,
+              "taker_gets": {
+                "currency": "USD",
+                "issuer": "alice",
+                "value": "100"
+              },
+              "taker_pays": "88000000"
+            }
+          ]
+        }
+    ]
+
+    account_lines = [{
+      "account": "bob",
+      "lines": [
+        {
+          "account": "alice",
+          "balance": "201",
+          "currency": "USD",
+          "limit": "500",
+          "limit_peer": "0",
+          "quality_in": 0,
+          "quality_out": 0
+        },
+      ]
+    }]
+
+    account_infos = [{
+      "account_data": {
+        "Account": "bob",
+        "Balance": "999"+ "999"+ "970",
+        "Flags": 0,
+        "LedgerEntryType": "AccountRoot",
+        "OwnerCount": 0,
+        "PreviousTxnID": "3D7823B577A5AF5860273B3DD13CA82D072B63B3B095DE1784604A5B41D7DD1D",
+        "PreviousTxnLgrSeq": 5,
+        "Sequence": 3,
+        "index": "59BEA57D1A27B6A560ECA226ABD10DE80C3ADC6961039908087ACDFA92F71489"
+      },
+      "ledger_current_index": 8
+    }]
+
+    errors = lv.verify account_infos, account_lines, account_offers
+
+    assert.equal errors.bob.balance['USD/alice'].expected, '200'
+    assert.equal errors.bob.balance['USD/alice'].actual, '201'
+
+    assert.equal errors.bob.balance['XRP'].expected, '100'
+    assert.equal errors.bob.balance['XRP'].actual, '999.99997'
+
+    assert.equal errors.bob.offers[0].taker_pays.actual, '88/XRP'
+    assert.equal errors.bob.offers[0].taker_pays.expected, '89/XRP'
+
+    # {"expected":["89.0","100/USD/alice"],"actual":"missing"}
+    assert.equal errors.bob.offers[1].actual, 'missing'
+
+    expected = {
+      "bob": {
+        "balance": {
+          "XRP": {
+            "actual": "999.99997",
+            "expected": "100"
+          },
+          "USD/alice": {
+            "actual": "201",
+            "expected": "200"
+          }
+        },
+        "offers": [
+          {
+            "taker_pays": {
+              "expected": "89/XRP",
+              "actual": "88/XRP"
+            }
+          },
+          "missing"
+        ]
+      }
+    }