ItemLabelBuilderTest.java

/*
 *  Copyright 2017 TWO SIGMA OPEN SOURCE, LLC
 *
 *  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.twosigma.beaker.chart;

import com.twosigma.beaker.KernelTest;
import com.twosigma.beaker.chart.categoryplot.CategoryPlot;
import com.twosigma.beaker.chart.categoryplot.plotitem.CategoryBars;
import com.twosigma.beaker.chart.categoryplot.plotitem.CategoryGraphics;
import com.twosigma.beaker.jupyter.KernelManager;
import org.assertj.core.api.Assertions;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import java.util.Arrays;

public class ItemLabelBuilderTest {
  private CategoryGraphics categoryGraphics;
  private CategoryPlot categoryPlot;

  @BeforeClass
  public static void setUpClass() throws Exception {
    KernelManager.register(new KernelTest());
  }

  @Before
  public void setUp() throws Exception {
    categoryGraphics = new CategoryBars();
    categoryGraphics.setValue(new Integer[] {new Integer(1), new Integer(2)});
    categoryGraphics.setSeriesNames(Arrays.asList("test series name"));
    categoryPlot = new CategoryPlot();
    categoryPlot.setCategoryNames(Arrays.asList("test category name"));
    categoryPlot.add(Arrays.asList(categoryGraphics));
  }

  @AfterClass
  public static void tearDown() throws Exception {
    KernelManager.register(null);
  }

  @Test
  public void setItemLabelBuilderWithOneParam_hasItemLabels() {
    //given
    categoryGraphics.setItemLabel(new ItemLabelBuilder() {
      @Override
      public Object call(Object value) {
        return "value=" + value;
      }

      @Override
      public int getMaximumNumberOfParameters() {
        return 1;
      }
    });
    //when
    categoryGraphics.createItemLabels(categoryPlot);
    //then
    Assertions.assertThat(categoryGraphics.getItemLabels()[0][0]).isEqualTo("value=1");
  }

  @Test
  public void setItemLabelBuilderWithTwoParams_hasItemLabels() {
    //given
    categoryGraphics.setItemLabel(new ItemLabelBuilder() {
      @Override
      public Object call(Object value, Object base) {
        return "base=" + base;
      }

      @Override
      public int getMaximumNumberOfParameters() {
        return 2;
      }
    });
    //when
    categoryGraphics.createItemLabels(categoryPlot);
    //then
    Assertions.assertThat(categoryGraphics.getItemLabels()[0][0]).isEqualTo("base=0.0");
  }

  @Test
  public void setItemLabelBuilderWithThreeParams_hasItemLabels() {
    //given
    categoryGraphics.setItemLabel(new ItemLabelBuilder() {
      @Override
      public Object call(Object value, Object base, Object series) {
        return "series=" + series;
      }

      @Override
      public int getMaximumNumberOfParameters() {
        return 3;
      }
    });
    //when
    categoryGraphics.createItemLabels(categoryPlot);
    //then
    Assertions.assertThat(categoryGraphics.getItemLabels()[0][0]).isEqualTo("series=test series name");
  }

  @Test
  public void setItemLabelBuilderWithFourParams_hasItemLabels() {
    //given
    categoryGraphics.setItemLabel(new ItemLabelBuilder() {
      @Override
      public Object call(Object value, Object base, Object series, Object category) {
        return "category=" + category;
      }

      @Override
      public int getMaximumNumberOfParameters() {
        return 4;
      }
    });
    //when
    categoryGraphics.createItemLabels(categoryPlot);
    //then
    Assertions.assertThat(categoryGraphics.getItemLabels()[0][0]).isEqualTo("category=test category name");
  }

  @Test
  public void setItemLabelBuilderWithFiveParams_hasItemLabels() {
    //given
    categoryGraphics.setItemLabel(new ItemLabelBuilder() {
      @Override
      public Object call(Object value, Object base, Object series, Object category, Object row) {
        return "row=" + row;
      }

      @Override
      public int getMaximumNumberOfParameters() {
        return 5;
      }
    });
    //when
    categoryGraphics.createItemLabels(categoryPlot);
    //then
    Assertions.assertThat(categoryGraphics.getItemLabels()[0][0]).isEqualTo("row=0");
  }

  @Test
  public void setItemLabelBuilderWithSixParams_hasItemLabels() {
    //given
    categoryGraphics.setItemLabel(new ItemLabelBuilder() {
      @Override
      public Object call(Object value, Object base, Object series, Object category, Object row, Object column) {
        return "column=" + column;
      }

      @Override
      public int getMaximumNumberOfParameters() {
        return 6;
      }
    });
    //when
    categoryGraphics.createItemLabels(categoryPlot);
    //then
    Assertions.assertThat(categoryGraphics.getItemLabels()[0][0]).isEqualTo("column=0");
  }

  @Test
  public void callDefaultMethods_returnNull() {
    //when
    ItemLabelBuilder itemLabelBuilder = new ItemLabelBuilder() {
      @Override
      public int getMaximumNumberOfParameters() {
        return 0;
      }
    };
    //then
    Assertions.assertThat(itemLabelBuilder.call("v")).isNull();
    Assertions.assertThat(itemLabelBuilder.call("v", "b")).isNull();
    Assertions.assertThat(itemLabelBuilder.call("v", "b", "s")).isNull();
    Assertions.assertThat(itemLabelBuilder.call("v", "b", "s", "c")).isNull();
    Assertions.assertThat(itemLabelBuilder.call("v", "b", "s", "c", "r")).isNull();
    Assertions.assertThat(itemLabelBuilder.call("v", "b", "s", "c", "r", "l")).isNull();
  }

}