/*
Copyright 2011, Lightbox Technologies, Inc

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.lightboxtechnologies.spectrum;

import org.junit.Test;
import static org.junit.Assert.*;

import java.math.BigInteger;
import java.util.Arrays;

import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.DoubleWritable;
import org.apache.hadoop.io.LongWritable;

import com.lightboxtechnologies.spectrum.PythonJob.*;

public class PythonJobTest {
  @Test
  public void testTextBoxerUnboxer() {
    final TextBoxerUnboxer ts = new TextBoxerUnboxer();
    final String s = "whatever";
    assertEquals(s, ts.set(s).toString());
    assertEquals(Text.class, ts.getBoxClass());
  }

  @Test
  public void testLongBoxerUnboxer() {
    final LongBoxerUnboxer ls = new LongBoxerUnboxer();
    final long l = 54;
    assertEquals(l, ls.set(l).get());
    assertEquals(LongWritable.class, ls.getBoxClass());
  }

  @Test
  public void testDoubleBoxerUnboxer() {
    final DoubleBoxerUnboxer d = new DoubleBoxerUnboxer();
    assertEquals(Math.PI, d.set(Math.PI).get(), 0.000001);
    assertEquals(DoubleWritable.class, d.getBoxClass());
  }

  @Test
  public void testBytesBoxerUnboxer() {
    final BytesBoxerUnboxer b = new BytesBoxerUnboxer();
    final byte[] expected =  { (byte)0x05, (byte)0x31, (byte)0x9a };
    byte[] actual = b.set(expected).get();
    actual = Arrays.copyOf(actual, b.getWritable().getLength());
    assertArrayEquals(expected, actual);
    assertEquals(ImmutableHexWritable.class, b.getBoxClass());
  }

  @Test
  public void testCreateText() {
    assertTrue(PythonJob.createOutputType("text") instanceof TextBoxerUnboxer);
  }

  @Test
  public void testCreateLong() {
    assertTrue(PythonJob.createOutputType("long") instanceof LongBoxerUnboxer);
  }

  @Test
  public void testCreateFailure() {
    assertEquals(null, PythonJob.createOutputType("string"));
  }

  @Test
  public void testCreateDouble() {
    assertTrue(PythonJob.createOutputType("double") instanceof DoubleBoxerUnboxer);
  }

  @Test
  public void testCreateJson() {
    assertTrue(PythonJob.createOutputType("json") instanceof JsonBoxerUnboxer);
  }

  @Test
  public void testUnboxDouble() {
    DoubleBoxerUnboxer d = new DoubleBoxerUnboxer();
    assertEquals(3.14159, d.unbox(new DoubleWritable(3.14159)), 0.000001);
  }

  @Test
  public void testCreateBytes() {
    assertTrue(PythonJob.createOutputType("bytes") instanceof BytesBoxerUnboxer);
  }
}