import org.junit.Ignore;
import org.junit.Test;
import org.junit.experimental.runners.Enclosed;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.util.Arrays;
import java.util.Collection;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
@RunWith(Enclosed.class)
public class MatrixTest {
@RunWith(Parameterized.class)
public static class CountRowsTest {
private Matrix matrix;
private int numberOfRows;
@Parameterized.Parameters(name = "{index}: expected matrix constructed with string \n\"{0}\" to have {1} row(s).")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{"0", 1},
{"0 1", 1},
{ "0\n"
+ "1", 2},
{ "0 1\n"
+ "2 3", 2},
{ "0 1 2\n"
+ "3 4 5\n"
+ "6 7 8", 3}
});
}
public CountRowsTest(String matrixAsString, int numberOfRows) {
this.matrix = new Matrix(matrixAsString);
this.numberOfRows = numberOfRows;
}
@Test
public void countRowsTest() {
assertEquals(numberOfRows, matrix.getRowsCount());
}
}
@Ignore("Remove to run test")
@RunWith(Parameterized.class)
public static class CountColumnsTest {
private Matrix matrix;
private int numberOfColumns;
@Parameterized.Parameters(name = "{index}: expected matrix constructed with string \n\"{0}\" to have {1} column(s).")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{"0", 1},
{"0 1", 2},
{ "0\n"
+ "1", 1},
{ "0 1\n"
+ "2 3", 2},
{ "0 1 2\n"
+ "3 4 5\n"
+ "6 7 8", 3}
});
}
public CountColumnsTest(String matrixAsString, int numberOfColumns) {
this.matrix = new Matrix(matrixAsString);
this.numberOfColumns = numberOfColumns;
}
@Test
public void countColumnsTest() {
assertEquals(numberOfColumns, matrix.getColumnsCount());
}
}
@Ignore("Remove to run test")
@RunWith(Parameterized.class)
public static class GetFirstRowTest {
private Matrix matrix;
private int[] firstRow;
@Parameterized.Parameters(name = "{index}: checking first row of matrix constructed with string \n\"{0}\".")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{"0", new int[] {0}},
{"0 1", new int[] {0, 1}},
{ "0\n"
+ "1", new int[] {0}},
{ "0 1\n"
+ "2 3", new int[] {0, 1}},
{ "0 1 2\n"
+ "3 4 5\n"
+ "6 7 8", new int[] {0, 1, 2}}
});
}
public GetFirstRowTest(String matrixAsString, int[] firstRow) {
this.matrix = new Matrix(matrixAsString);
this.firstRow = firstRow;
}
@Test
public void getFirstRowTest() {
assertArrayEquals(firstRow, matrix.getRow(0));
}
}
@Ignore("Remove to run test")
@RunWith(Parameterized.class)
public static class GetLastRowTest {
private Matrix matrix;
private int[] lastRow;
@Parameterized.Parameters(name = "{index}: checking last row of matrix constructed with string \n\"{0}\".")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{"0", new int[] {0}},
{"0 1", new int[] {0, 1}},
{ "0\n"
+ "1", new int[] {1}},
{ "0 1\n"
+ "2 3", new int[] {2, 3}},
{ "0 1 2\n"
+ "3 4 5\n"
+ "6 7 8", new int[] {6, 7, 8}}
});
}
public GetLastRowTest(String matrixAsString, int[] lastRow) {
this.matrix = new Matrix(matrixAsString);
this.lastRow = lastRow;
}
@Test
public void getLastRowTest() {
assertArrayEquals(lastRow, matrix.getRow(matrix.getRowsCount() - 1));
}
}
@Ignore("Remove to run test")
@RunWith(Parameterized.class)
public static class GetFirstColumnTest {
private Matrix matrix;
private int[] firstColumn;
@Parameterized.Parameters(name = "{index}: checking first column of matrix constructed with string \n\"{0}\".")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{"0", new int[] {0}},
{"0 1", new int[] {0}},
{ "0\n"
+ "1", new int[] {0, 1}},
{ "0 1\n"
+ "2 3", new int[] {0, 2}},
{ "0 1 2\n"
+ "3 4 5\n"
+ "6 7 8", new int[] {0, 3, 6}}
});
}
public GetFirstColumnTest(String matrixAsString, int[] firstColumn) {
this.matrix = new Matrix(matrixAsString);
this.firstColumn = firstColumn;
}
@Test
public void getFirstColumnTest() {
assertArrayEquals(firstColumn, matrix.getColumn(0));
}
}
@Ignore("Remove to run test")
@RunWith(Parameterized.class)
public static class GetLastColumnTest {
private Matrix matrix;
private int[] lastColumn;
@Parameterized.Parameters(name = "{index}: checking last column of matrix constructed with string \n\"{0}\".")
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{"0", new int[] {0}},
{"0 1", new int[] {1}},
{ "0\n"
+ "1", new int[] {0, 1}},
{ "0 1\n"
+ "2 3", new int[] {1, 3}},
{ "0 1 2\n"
+ "3 4 5\n"
+ "6 7 8", new int[] {2, 5, 8}}
});
}
public GetLastColumnTest(String matrixAsString, int[] lastColumn) {
this.matrix = new Matrix(matrixAsString);
this.lastColumn = lastColumn;
}
@Test
public void getLastColumnTest() {
assertArrayEquals(lastColumn, matrix.getColumn(matrix.getColumnsCount() - 1));
}
}
}