/*
* 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.facebook.presto.cli;
import com.google.common.collect.ImmutableList;
import org.testng.annotations.Test;
import java.io.StringWriter;
import java.util.List;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.Arrays.asList;
import static org.testng.Assert.assertEquals;
public class TestAlignedTablePrinter
{
@Test
public void testAlignedPrinting()
throws Exception
{
StringWriter writer = new StringWriter();
List<String> fieldNames = ImmutableList.of("first", "last", "quantity");
OutputPrinter printer = new AlignedTablePrinter(fieldNames, writer);
printer.printRows(rows(
row("hello", "world", 123),
row("a", null, 4.5),
row("some long\ntext that\ndoes not\nfit on\none line", "more\ntext", 4567),
row("bye", "done", -15)),
true);
printer.finish();
String expected = "" +
" first | last | quantity \n" +
"-----------+-------+----------\n" +
" hello | world | 123 \n" +
" a | NULL | 4.5 \n" +
" some long+| more +| 4567 \n" +
" text that+| text | \n" +
" does not +| | \n" +
" fit on +| | \n" +
" one line | | \n" +
" bye | done | -15 \n" +
"(4 rows)\n";
assertEquals(writer.getBuffer().toString(), expected);
}
@Test
public void testAlignedPrintingOneRow()
throws Exception
{
StringWriter writer = new StringWriter();
List<String> fieldNames = ImmutableList.of("first", "last");
OutputPrinter printer = new AlignedTablePrinter(fieldNames, writer);
printer.printRows(rows(row("a long line\nwithout wrapping", "text")), true);
printer.finish();
String expected = "" +
" first | last \n" +
"------------------+------\n" +
" a long line | text \n" +
" without wrapping | \n" +
"(1 row)\n";
assertEquals(writer.getBuffer().toString(), expected);
}
@Test
public void testAlignedPrintingNoRows()
throws Exception
{
StringWriter writer = new StringWriter();
List<String> fieldNames = ImmutableList.of("first", "last");
OutputPrinter printer = new AlignedTablePrinter(fieldNames, writer);
printer.finish();
String expected = "" +
" first | last \n" +
"-------+------\n" +
"(0 rows)\n";
assertEquals(writer.getBuffer().toString(), expected);
}
@Test
public void testAlignedPrintingHex()
throws Exception
{
StringWriter writer = new StringWriter();
List<String> fieldNames = ImmutableList.of("first", "binary", "last");
OutputPrinter printer = new AlignedTablePrinter(fieldNames, writer);
printer.printRows(rows(
row("hello", bytes("hello"), "world"),
row("a", bytes("some long text that is more than 16 bytes"), "b"),
row("cat", bytes(""), "dog")),
true);
printer.finish();
String expected = "" +
" first | binary | last \n" +
"-------+-------------------------------------------------+-------\n" +
" hello | 68 65 6c 6c 6f | world \n" +
" a | 73 6f 6d 65 20 6c 6f 6e 67 20 74 65 78 74 20 74+| b \n" +
" | 68 61 74 20 69 73 20 6d 6f 72 65 20 74 68 61 6e+| \n" +
" | 20 31 36 20 62 79 74 65 73 | \n" +
" cat | | dog \n" +
"(3 rows)\n";
assertEquals(writer.getBuffer().toString(), expected);
}
@Test
public void testAlignedPrintingWideCharacters()
throws Exception
{
StringWriter writer = new StringWriter();
List<String> fieldNames = ImmutableList.of("go\u7f51", "last", "quantity\u7f51");
OutputPrinter printer = new AlignedTablePrinter(fieldNames, writer);
printer.printRows(rows(
row("hello", "wide\u7f51", 123),
row("some long\ntext \u7f51\ndoes not\u7f51\nfit", "more\ntext", 4567),
row("bye", "done", -15)),
true);
printer.finish();
String expected = "" +
" go\u7f51 | last | quantity\u7f51 \n" +
"------------+--------+------------\n" +
" hello | wide\u7f51 | 123 \n" +
" some long +| more +| 4567 \n" +
" text \u7f51 +| text | \n" +
" does not\u7f51+| | \n" +
" fit | | \n" +
" bye | done | -15 \n" +
"(3 rows)\n";
assertEquals(writer.getBuffer().toString(), expected);
}
static List<?> row(Object... values)
{
return asList(values);
}
static List<List<?>> rows(List<?>... rows)
{
return asList(rows);
}
static byte[] bytes(String s)
{
return s.getBytes(UTF_8);
}
}