Move byte_store.dart and file_byte_store.dart to their own subdirectory.

pkg/front_end/test/src/incremental/byte_store_test.dart

-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:front_end/src/incremental/byte_store.dart';
-import 'package:mockito/mockito.dart';
-import 'package:test/test.dart';
-import 'package:test_reflective_loader/test_reflective_loader.dart';
-
-main() {
-  defineReflectiveSuite(() {
-    defineReflectiveTests(MemoryCachingByteStoreTest);
-    defineReflectiveTests(NullByteStoreTest);
-  });
-}
-
-List<int> _b(int length) {
-  return new List<int>(length);
-}
-
-@reflectiveTest
-class MemoryCachingByteStoreTest {
-  test_get_notFound_evict() {
-    var store = new _TestByteStore();
-    var cachingStore = new MemoryCachingByteStore(store, 100);
-
-    // Request '1'.  Nothing found.
-    cachingStore.get('1');
-
-    // Add enough data to the store to force an eviction.
-    cachingStore.put('2', _b(40));
-    cachingStore.put('3', _b(40));
-    cachingStore.put('4', _b(40));
-  }
-
-  test_get_notFound_retry() {
-    var mockStore = new _TestByteStore();
-    var baseStore = new MemoryCachingByteStore(mockStore, 1000);
-    var cachingStore = new MemoryCachingByteStore(baseStore, 100);
-
-    // Request '1'.  Nothing found.
-    expect(cachingStore.get('1'), isNull);
-
-    // Add data to the base store, bypassing the caching store.
-    baseStore.put('1', _b(40));
-
-    // Request '1' again.  The previous `null` result should not have been
-    // cached.
-    expect(cachingStore.get('1'), isNotNull);
-  }
-
-  test_get_put_evict() {
-    var store = new _TestByteStore();
-    var cachingStore = new MemoryCachingByteStore(store, 100);
-
-    // Keys: [1, 2].
-    cachingStore.put('1', _b(40));
-    cachingStore.put('2', _b(50));
-
-    // Request '1', so now it is the most recently used.
-    // Keys: [2, 1].
-    cachingStore.get('1');
-
-    // 40 + 50 + 30 > 100
-    // So, '2' is evicted.
-    cachingStore.put('3', _b(30));
-    expect(cachingStore.get('1'), hasLength(40));
-    expect(cachingStore.get('2'), isNull);
-    expect(cachingStore.get('3'), hasLength(30));
-  }
-
-  test_put_evict_first() {
-    var store = new _TestByteStore();
-    var cachingStore = new MemoryCachingByteStore(store, 100);
-
-    // 40 + 50 < 100
-    cachingStore.put('1', _b(40));
-    cachingStore.put('2', _b(50));
-    expect(cachingStore.get('1'), hasLength(40));
-    expect(cachingStore.get('2'), hasLength(50));
-
-    // 40 + 50 + 30 > 100
-    // So, '1' is evicted.
-    cachingStore.put('3', _b(30));
-    expect(cachingStore.get('1'), isNull);
-    expect(cachingStore.get('2'), hasLength(50));
-    expect(cachingStore.get('3'), hasLength(30));
-  }
-
-  test_put_evict_firstAndSecond() {
-    var store = new _TestByteStore();
-    var cachingStore = new MemoryCachingByteStore(store, 100);
-
-    // 10 + 80 < 100
-    cachingStore.put('1', _b(10));
-    cachingStore.put('2', _b(80));
-    expect(cachingStore.get('1'), hasLength(10));
-    expect(cachingStore.get('2'), hasLength(80));
-
-    // 10 + 80 + 30 > 100
-    // So, '1' and '2' are evicted.
-    cachingStore.put('3', _b(30));
-    expect(cachingStore.get('1'), isNull);
-    expect(cachingStore.get('2'), isNull);
-    expect(cachingStore.get('3'), hasLength(30));
-  }
-}
-
-@reflectiveTest
-class NullByteStoreTest {
-  test_get() {
-    var store = new NullByteStore();
-
-    expect(store.get('1'), isNull);
-
-    store.put('1', _b(10));
-    expect(store.get('1'), isNull);
-  }
-}
-
-class _TestByteStore extends Mock implements ByteStore {}