Merge pull request #2730 from ethereum/indented-writer

Introduce IndentedWriter

test/libdevcore/IndentedWriter.cpp

@@ -0,0 +1,75 @@
+/*
+	This file is part of solidity.
+
+	solidity is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	solidity is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * Unit tests for IndentedWriter.
+ */
+
+#include <libdevcore/IndentedWriter.h>
+
+#include "../TestHelper.h"
+
+using namespace std;
+
+namespace dev
+{
+namespace test
+{
+
+BOOST_AUTO_TEST_SUITE(IndentedWriterTest)
+
+BOOST_AUTO_TEST_CASE(empty)
+{
+	IndentedWriter iw;
+	BOOST_CHECK_EQUAL(iw.format(), "\n");
+}
+
+BOOST_AUTO_TEST_CASE(new_lines)
+{
+	IndentedWriter iw;
+	iw.newLine();
+	BOOST_CHECK_EQUAL(iw.format(), "\n");
+}
+
+BOOST_AUTO_TEST_CASE(text_without_newline)
+{
+	IndentedWriter iw;
+	iw.add("Hello World");
+	BOOST_CHECK_EQUAL(iw.format(), "Hello World\n");
+}
+
+BOOST_AUTO_TEST_CASE(text_with_newline)
+{
+	IndentedWriter iw;
+	iw.addLine("Hello World");
+	BOOST_CHECK_EQUAL(iw.format(), "Hello World\n\n");
+}
+
+BOOST_AUTO_TEST_CASE(indent)
+{
+	IndentedWriter iw;
+	iw.addLine("Hello");
+	iw.indent();
+	iw.addLine("World");
+	iw.unindent();
+	iw.addLine("and everyone else");
+	BOOST_CHECK_EQUAL(iw.format(), "Hello\n    World\nand everyone else\n\n");
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+}
+}