chore(tests): make tests 1.0 compatible

This will make the tests compatible with version 1.0. Note that this
there is still a change needed in rollup to properly sanitize chunk ids

test/test.js

@@ -1,6 +1,6 @@
-import multiEntry from '../';
 import { ok } from 'assert';
 import { rollup } from 'rollup';
+import multiEntry from '../';
 
 function includes(string, substring) {
   if (string.indexOf(substring) === -1) {
@@ -24,79 +24,61 @@ function doesNotInclude(string, substring) {
   }
 }
 
-function makeBundle(entries) {
-  return rollup({ input: entries, plugins: [multiEntry()] });
+function getCodeFromBundle(entries) {
+  return rollup({ input: entries, plugins: [multiEntry()] })
+    .then(bundle => bundle.generate({ format: 'cjs' }))
+    .then(generated =>
+      generated.output ? generated.output[0].code : generated.code
+    );
 }
 
 describe('rollup-plugin-multi-entry', () => {
-  it('takes a single file as input', () => {
-    return makeBundle('test/fixtures/0.js').then(bundle => {
-      return bundle.generate({ format: 'cjs' }).then(({ code }) => {
-        includes(code, 'exports.zero = zero;');
-      });
-    });
-  });
+  it('takes a single file as input', () =>
+    getCodeFromBundle('test/fixtures/0.js').then(code =>
+      includes(code, 'exports.zero = zero;')
+    ));
 
-  it('takes an array of files as input', () => {
-    return makeBundle(['test/fixtures/0.js', 'test/fixtures/1.js']).then(
-      bundle => {
-        return bundle.generate({ format: 'cjs' }).then(({ code }) => {
-          includes(code, 'exports.zero = zero;');
-          includes(code, 'exports.one = one;');
-        });
+  it('takes an array of files as input', () =>
+    getCodeFromBundle(['test/fixtures/0.js', 'test/fixtures/1.js']).then(
+      code => {
+        includes(code, 'exports.zero = zero;');
+        includes(code, 'exports.one = one;');
       }
-    );
-  });
+    ));
 
-  it('allows an empty array as input', () => {
-    return makeBundle([]).then(bundle => {
-      return bundle.generate({ format: 'cjs' }).then(({ code }) => {
-        doesNotInclude(code, 'exports');
-      });
-    });
-  });
+  it('allows an empty array as input', () =>
+    getCodeFromBundle([]).then(code => doesNotInclude(code, 'exports')));
 
-  it('takes a glob as input', () => {
-    return makeBundle('test/fixtures/{0,1}.js').then(bundle => {
-      return bundle.generate({ format: 'cjs' }).then(({ code }) => {
+  it('takes a glob as input', () =>
+    getCodeFromBundle('test/fixtures/{0,1}.js').then(code => {
+      includes(code, 'exports.zero = zero;');
+      includes(code, 'exports.one = one;');
+    }));
+
+  it('takes an array of globs as input', () =>
+    getCodeFromBundle(['test/fixtures/{0,}.js', 'test/fixtures/{1,}.js']).then(
+      code => {
         includes(code, 'exports.zero = zero;');
         includes(code, 'exports.one = one;');
-      });
-    });
-  });
-
-  it('takes an array of globs as input', () => {
-    return makeBundle(['test/fixtures/{0,}.js', 'test/fixtures/{1,}.js']).then(
-      bundle => {
-        return bundle.generate({ format: 'cjs' }).then(({ code }) => {
-          includes(code, 'exports.zero = zero;');
-          includes(code, 'exports.one = one;');
-        });
       }
-    );
-  });
+    ));
 
-  it('takes an {include,exclude} object as input', () => {
-    return makeBundle({
+  it('takes an {include,exclude} object as input', () =>
+    getCodeFromBundle({
       include: ['test/fixtures/*.js'],
       exclude: ['test/fixtures/1.js']
-    }).then(bundle => {
-      return bundle.generate({ format: 'cjs' }).then(({ code }) => {
-        includes(code, 'exports.zero = zero;');
-        doesNotInclude(code, 'exports.one = one;');
-      });
-    });
-  });
+    }).then(code => {
+      includes(code, 'exports.zero = zero;');
+      doesNotInclude(code, 'exports.one = one;');
+    }));
 
-  it('allows to prevent exporting', () => {
-    return makeBundle({ include: ['test/fixtures/*.js'], exports: false }).then(
-      bundle => {
-        return bundle.generate({ format: 'cjs' }).then(({ code }) => {
-          includes(code, `console.log('Hello, 2');`);
-          doesNotInclude(code, 'zero');
-          doesNotInclude(code, 'one');
-        });
-      }
-    );
-  });
+  it('allows to prevent exporting', () =>
+    getCodeFromBundle({
+      include: ['test/fixtures/*.js'],
+      exports: false
+    }).then(code => {
+      includes(code, `console.log('Hello, 2');`);
+      doesNotInclude(code, 'zero');
+      doesNotInclude(code, 'one');
+    }));
 });