rename test files

no point in prefixing them with `test-` when in a `test` folder.

test/test-arguments.js → test/arguments.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-error.js → test/error.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-gzip.js → test/gzip.js

@@ -1,7 +1,7 @@
 import zlib from 'zlib';
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 const testContent = 'Compressible response content.\n';

test/test-headers.js → test/headers.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-helpers.js → test/helpers.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-http.js → test/http.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-https.js → test/https.js

@@ -1,7 +1,7 @@
 import test from 'ava';
 import pem from 'pem';
 import got from '../';
-import {createSSLServer, portSSL} from './server.js';
+import {createSSLServer, portSSL} from './_server';
 
 let s;
 let key;

test/test-json.js → test/json.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-post.js → test/post.js

@@ -1,7 +1,7 @@
 import test from 'ava';
 import intoStream from 'into-stream';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-redirects.js → test/redirects.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-stream.js → test/stream.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 

test/test-unix-socket.js → test/unix-socket.js

@@ -2,7 +2,7 @@ import {format} from 'util';
 import tempfile from 'tempfile';
 import test from 'ava';
 import got from '../';
-import {createServer} from './server.js';
+import {createServer} from './_server';
 
 const s = createServer();
 const socketPath = tempfile('.socket');