Add Language TextSpan tests

google-cloud-language/test/google/cloud/language/annotation/text_span_test.rb

@@ -0,0 +1,37 @@
+# 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.
+
+require "helper"
+
+describe Google::Cloud::Language::Annotation::TextSpan do
+  let(:text_span_hash) do
+    {
+      "content": "Hello world!",
+      "beginOffset": -1
+    }
+  end
+  let(:text_span_json) { text_span_hash.to_json }
+  let(:text_span_grpc) { Google::Cloud::Language::V1beta1::TextSpan.decode_json text_span_json }
+  let(:text_span)      { Google::Cloud::Language::Annotation::TextSpan.from_grpc text_span_grpc }
+
+  it "has attributes" do
+    text_span.must_be_kind_of Google::Cloud::Language::Annotation::TextSpan
+
+    text_span.text.must_equal    "Hello world!"
+    text_span.content.must_equal "Hello world!"
+
+    text_span.offset.must_equal       -1
+    text_span.begin_offset.must_equal -1
+  end
+end