Rename RippleAPI client to Client (#1520)

* rename RippleAPI -> XrplClient

* more renames

* move API stuff to client folder

* rename all api -> client

* fix tests

* make tests run

* fix integ tests

* fix urls

* fix merge issues

* XrplClient -> Client

* fix merge issues

* rename xrpl-client npm symlink to xrpl-local

test/client/getServerInfo/index.ts

@@ -0,0 +1,44 @@
+import assert from 'assert-diff'
+import responses from '../../fixtures/responses'
+import {assertResultMatch, TestSuite, assertRejects} from '../../utils'
+
+/**
+ * Every test suite exports their tests in the default object.
+ * - Check out the "TestSuite" type for documentation on the interface.
+ * - Check out "test/client/index.ts" for more information about the test runner.
+ */
+export default <TestSuite>{
+  'default': async (client, address) => {
+    const serverInfo = await client.getServerInfo()
+    assertResultMatch(serverInfo, responses.getServerInfo, 'getServerInfo')
+  },
+
+  'error': async (client, address) => {
+    client.connection.request({
+      command: 'config',
+      data: {returnErrorOnServerInfo: true}
+    })
+    try {
+      await client.getServerInfo()
+      throw new Error('Should throw NetworkError')
+    } catch (err) {
+      assert(err instanceof client.errors.RippledError)
+      assert.equal(err.message, 'You are placing too much load on the server.')
+      assert.equal(err.data.error, 'slowDown')
+    }
+  },
+
+  'no validated ledger': async (client, address) => {
+    client.connection.request({
+      command: 'config',
+      data: {serverInfoWithoutValidated: true}
+    })
+    const serverInfo = await client.getServerInfo()
+    assert.strictEqual(serverInfo.networkLedger, 'waiting')
+  },
+
+  'getServerInfo - offline': async (client, address) => {
+    await client.disconnect()
+    return assertRejects(client.getServerInfo(), client.errors.NotConnectedError)
+  }
+}