Import code from internal repository to git

javatests/com/google/domain/registry/testing/TruthChainer.java

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+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.domain.registry.testing;
+
+import com.google.common.truth.Subject;
+
+/** Shim classes to enable fluent chained assertions. */
+public final class TruthChainer {
+
+  /** Add another assertion. */
+  public static class And<S extends Subject<?, ?>> {
+
+    private final S subject;
+
+    And(S subject) {
+      this.subject = subject;
+    }
+
+    public S and() {
+      return subject;
+    }
+  }
+
+  /** Move the word "which" to after a parameterized assertion. */
+  public static class Which<S extends Subject<?, ?>> {
+
+    private final S subject;
+
+    Which(S subject) {
+      this.subject = subject;
+    }
+
+    public S which() {
+      return subject;
+    }
+  }
+}