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package com.xtremelabs.robolectric.shadows;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import com.xtremelabs.robolectric.WithTestDefaultsRunner;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import android.database.CursorIndexOutOfBoundsException;
import android.database.MatrixCursor;
@RunWith(WithTestDefaultsRunner.class)
public class MatrixCursorTest {
private MatrixCursor singleColumnSingleNullValueMatrixCursor;
@Before
public void setUp() throws Exception {
singleColumnSingleNullValueMatrixCursor = new MatrixCursor(new String[]{"a"});
singleColumnSingleNullValueMatrixCursor.addRow(new Object[]{null});
singleColumnSingleNullValueMatrixCursor.moveToFirst();
}
@Test
public void shouldAddRows() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
cursor.addRow(new Object[]{"foo", 10L, 0.1f});
cursor.addRow(new Object[]{"baz", 20L, null});
assertThat(cursor.getCount(), equalTo(2));
assertTrue(cursor.moveToFirst());
assertThat(cursor.getString(0), equalTo("foo"));
assertThat(cursor.getLong(1), equalTo(10L));
assertThat(cursor.getFloat(2), equalTo(0.1f));
assertTrue(cursor.moveToNext());
assertThat(cursor.getString(0), equalTo("baz"));
assertThat(cursor.getLong(1), equalTo(20L));
assertTrue(cursor.isNull(2));
assertFalse(cursor.moveToNext());
}
@Test
public void shouldDefineColumnNames() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
assertThat(cursor.getColumnCount(), equalTo(3));
assertThat(cursor.getColumnName(0), equalTo("a"));
assertThat(cursor.getColumnName(1), equalTo("b"));
assertThat(cursor.getColumnName(2), equalTo("c"));
assertThat(cursor.getColumnNames(), equalTo(new String[]{"a", "b", "c"}));
assertThat(cursor.getColumnIndex("b"), equalTo(1));
assertThat(cursor.getColumnIndex("z"), equalTo(-1));
}
@Test
public void shouldDefineGetBlob() throws Exception {
byte[] blob = {1, 2, 3, 4};
MatrixCursor cursor = new MatrixCursor(new String[]{"a"});
cursor.addRow(new Object[]{blob});
assertTrue(cursor.moveToFirst());
assertThat(cursor.getBlob(0), equalTo(blob));
}
@Test
public void shouldAllowTypeFlexibility() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
cursor.addRow(new Object[]{42, 3.3});
assertTrue(cursor.moveToFirst());
assertThat(cursor.getString(0), equalTo("42"));
assertThat(cursor.getShort(0), equalTo((short) 42));
assertThat(cursor.getInt(0), equalTo(42));
assertThat(cursor.getLong(0), equalTo(42L));
assertThat(cursor.getFloat(0), equalTo(42.0F));
assertThat(cursor.getDouble(0), equalTo(42.0));
assertThat(cursor.getString(1), equalTo("3.3"));
assertThat(cursor.getShort(1), equalTo((short) 3));
assertThat(cursor.getInt(1), equalTo(3));
assertThat(cursor.getLong(1), equalTo(3L));
assertThat(cursor.getFloat(1), equalTo(3.3F));
assertThat(cursor.getDouble(1), equalTo(3.3));
}
@Test(expected = IllegalArgumentException.class)
public void shouldDefineGetColumnNameOrThrow() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
cursor.getColumnIndexOrThrow("z");
}
@Test(expected = CursorIndexOutOfBoundsException.class)
public void shouldThrowIndexOutOfBoundsExceptionWithoutData() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
cursor.getString(0);
}
@Test(expected = CursorIndexOutOfBoundsException.class)
public void shouldThrowIndexOutOfBoundsExceptionForInvalidColumn() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
cursor.addRow(new Object[]{"foo", 10L, 0.1f});
cursor.getString(3);
}
@Test(expected = CursorIndexOutOfBoundsException.class)
public void shouldThrowIndexOutOfBoundsExceptionForInvalidColumnLastRow() throws Exception {
MatrixCursor cursor = new MatrixCursor(new String[]{"a", "b", "c"});
cursor.addRow(new Object[]{"foo", 10L, 0.1f});
cursor.moveToFirst();
cursor.moveToNext();
cursor.getString(0);
}
@Test
public void returnsNullWhenGettingStringFromNullColumn() {
assertThat(singleColumnSingleNullValueMatrixCursor.getString(0), is(nullValue()));
}
@Test
public void returnsZeroWhenGettingIntFromNullColumn() {
assertThat(singleColumnSingleNullValueMatrixCursor.getInt(0), is(equalTo(0)));
}
@Test
public void returnsZeroWhenGettingLongFromNullColumn() {
assertThat(singleColumnSingleNullValueMatrixCursor.getLong(0), is(equalTo(0L)));
}
@Test
public void returnsZeroWhenGettingShortFromNullColumn() {
assertThat(singleColumnSingleNullValueMatrixCursor.getShort(0), is(equalTo((short) 0)));
}
@Test
public void returnsZeroWhenGettingFloatFromNullColumn() {
assertThat(singleColumnSingleNullValueMatrixCursor.getFloat(0), is(equalTo(0.0f)));
}
@Test
public void returnsZeroWhenGettingDoubleFromNullColumn() {
assertThat(singleColumnSingleNullValueMatrixCursor.getDouble(0), is(equalTo(0.0)));
}
}
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