- Add 15 network error test cases + code fixes for handling the errors

- moved ticker retrieval to api/network/
- configure Jest to print verbose output

__tests__/helpers.js

@@ -0,0 +1,107 @@
+import nock from 'nock'
+
+export const mockGetDBHeight = function(height_return_value) {
+    let matcher = nock('http://testnet-api.wallet.cityofzion.io').get('/v2/block/height')
+    if (height_return_value) {
+        return matcher.reply(200, {
+            block_height: height_return_value,
+            net: 'TestNet'
+        })
+    } else {
+        return matcher
+    }
+}
+
+export const mockGetBalance = function(balanceNEO, balanceGAS) {
+    let matcher = nock('http://testnet-api.wallet.cityofzion.io')
+        .persist()
+        .filteringPath(function(path) {
+            if (path.includes('/v2/address/balance/')) {
+                return '/v2/address/balance/'
+            } else {
+                return path
+            }
+        })
+        .get('/v2/address/balance/')
+
+    if (balanceNEO && balanceGAS) {
+        return matcher.reply(200, {
+            GAS: {
+                balance: balanceGAS,
+                unspent: []
+            },
+            NEO: {
+                balance: balanceNEO,
+                unspent: []
+            },
+            address: 'AStZHy8E6StCqYQbzMqi4poH7YNDHQKxvt',
+            net: 'TestNet'
+        })
+    } else {
+        return matcher
+    }
+}
+
+export const mockGetHistory = function(history) {
+    let matcher = nock('http://testnet-api.wallet.cityofzion.io')
+        .persist()
+        .filteringPath(function(path) {
+            if (path.includes('/v2/address/history/')) {
+                return '/v2/address/history/'
+            } else {
+                return path
+            }
+        })
+        .get('/v2/address/history/')
+    if (history) {
+        matcher.reply(200, {
+            address: 'AStZHy8E6StCqYQbzMqi4poH7YNDHQKxvt',
+            history: history,
+            name: 'transaction_history',
+            net: 'TestNet'
+        })
+    } else {
+        return matcher
+    }
+}
+
+export const mockClaims = function(claims) {
+    let matcher = nock('http://testnet-api.wallet.cityofzion.io')
+        .persist()
+        .filteringPath(function(path) {
+            if (path.includes('/v2/address/claims/')) {
+                return '/v2/address/claims/'
+            } else {
+                return path
+            }
+        })
+        .get('/v2/address/claims/')
+
+    if (claims) {
+        matcher.reply(200, {
+            address: 'AStZHy8E6StCqYQbzMqi4poH7YNDHQKxvt',
+            claims: claims,
+            net: 'TestNet',
+            total_claim: 0,
+            total_unspent_claim: 0
+        })
+    } else {
+        return matcher
+    }
+}
+
+export const mockTicker = function(bid, ask, last) {
+    let matcher = nock('https://bittrex.com')
+        .persist()
+        .get('/api/v1.1/public/getticker?market=USDT-NEO')
+
+    if (bid && ask && last) {
+        matcher.reply(200, {
+            success: true,
+            message: '',
+            result: { Bid: 1337.00000001, Ask: 1337.00000002, Last: 1337.00000003 }
+        })
+    } else {
+        return matcher
+    }
+}