Visual Studio generators for GN

tools/gn/xml_element_writer_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "tools/gn/xml_element_writer.h"
+
+#include <sstream>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class MockValueWriter {
+ public:
+  explicit MockValueWriter(const std::string& value) : value_(value) {}
+  void operator()(std::ostream& out) const { out << value_; }
+
+ private:
+  std::string value_;
+};
+
+}  // namespace
+
+TEST(XmlElementWriter, EmptyElement) {
+  std::ostringstream out;
+  { XmlElementWriter writer(out, "foo", XmlAttributes()); }
+  EXPECT_EQ("<foo/>\n", out.str());
+
+  std::ostringstream out_attr;
+  {
+    XmlElementWriter writer(out_attr, "foo",
+                            XmlAttributes("bar", "abc").add("baz", "123"));
+  }
+  EXPECT_EQ("<foo bar=\"abc\" baz=\"123\"/>\n", out_attr.str());
+
+  std::ostringstream out_indent;
+  {
+    XmlElementWriter writer(out_indent, "foo", XmlAttributes("bar", "baz"), 2);
+  }
+  EXPECT_EQ("  <foo bar=\"baz\"/>\n", out_indent.str());
+
+  std::ostringstream out_writer;
+  {
+    XmlElementWriter writer(out_writer, "foo", "bar", MockValueWriter("baz"),
+                            2);
+  }
+  EXPECT_EQ("  <foo bar=\"baz\"/>\n", out_writer.str());
+}
+
+TEST(XmlElementWriter, ElementWithText) {
+  std::ostringstream out;
+  {
+    XmlElementWriter writer(out, "foo", XmlAttributes("bar", "baz"));
+    writer.Text("Hello world!");
+  }
+  EXPECT_EQ("<foo bar=\"baz\">Hello world!</foo>\n", out.str());
+}
+
+TEST(XmlElementWriter, SubElements) {
+  std::ostringstream out;
+  {
+    XmlElementWriter writer(out, "root", XmlAttributes("aaa", "000"));
+    writer.SubElement("foo", XmlAttributes());
+    writer.SubElement("bar", XmlAttributes("bbb", "111"))->Text("hello");
+    writer.SubElement("baz", "ccc", MockValueWriter("222"))
+        ->SubElement("grandchild");
+  }
+  std::string expected =
+      "<root aaa=\"000\">\n"
+      "  <foo/>\n"
+      "  <bar bbb=\"111\">hello</bar>\n"
+      "  <baz ccc=\"222\">\n"
+      "    <grandchild/>\n"
+      "  </baz>\n"
+      "</root>\n";
+  EXPECT_EQ(expected, out.str());
+}
+
+TEST(XmlElementWriter, StartContent) {
+  std::ostringstream out;
+  {
+    XmlElementWriter writer(out, "foo", XmlAttributes("bar", "baz"));
+    writer.StartContent(false) << "Hello world!";
+  }
+  EXPECT_EQ("<foo bar=\"baz\">Hello world!</foo>\n", out.str());
+}