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Numeral bases

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serso
2016-02-11 16:26:18 +01:00
parent 9e10640e54
commit 7350a9ed0c
23 changed files with 442 additions and 803 deletions
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110
app/src/test/java/org/solovyev/android/AndroidNumeralBaseTest.java
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/*
* Copyright 2013 serso aka se.solovyev
*
* 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.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Contact details
*
* Email: se.solovyev@gmail.com
* Site: http://se.solovyev.org
*/
package org.solovyev.android;
import android.os.Build;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricGradleTestRunner;
import org.robolectric.annotation.Config;
import org.solovyev.android.calculator.BuildConfig;
import org.solovyev.android.calculator.CalculatorTestUtils;
import org.solovyev.android.calculator.units.CalculatorNumeralBase;
import org.solovyev.common.units.Unit;
import org.solovyev.common.units.UnitConverter;
import javax.annotation.Nonnull;
import java.util.Date;
import java.util.Random;
import static org.junit.Assert.assertTrue;
/**
* User: serso
* Date: 4/21/12
* Time: 8:24 PM
*/
@Config(constants = BuildConfig.class, sdk = Build.VERSION_CODES.LOLLIPOP)
@RunWith(RobolectricGradleTestRunner.class)
public class AndroidNumeralBaseTest {
@Nonnull
private final UnitConverter<String> c = CalculatorNumeralBase.getConverter();
@BeforeClass
public static void staticSetUp() throws Exception {
CalculatorTestUtils.staticSetUp();
}
@Test
public void testIsSupported() throws Exception {
assertTrue(c.isSupported(CalculatorNumeralBase.bin, CalculatorNumeralBase.dec));
}
@Test
public void testConvertFromDec() throws Exception {
Assert.assertEquals("101", c.convert(CalculatorNumeralBase.dec.createUnit("5"), CalculatorNumeralBase.bin).getValue());
Assert.assertEquals("1", c.convert(CalculatorNumeralBase.dec.createUnit("1"), CalculatorNumeralBase.bin).getValue());
Assert.assertEquals("0", c.convert(CalculatorNumeralBase.dec.createUnit("0"), CalculatorNumeralBase.bin).getValue());
Assert.assertEquals("1111100111", c.convert(CalculatorNumeralBase.dec.createUnit("999"), CalculatorNumeralBase.bin).getValue());
Assert.assertEquals("A23", c.convert(CalculatorNumeralBase.dec.createUnit("2595"), CalculatorNumeralBase.hex).getValue());
Assert.assertEquals("AEE", c.convert(CalculatorNumeralBase.dec.createUnit("2798"), CalculatorNumeralBase.hex).getValue());
Assert.assertEquals("15", c.convert(CalculatorNumeralBase.dec.createUnit("21"), CalculatorNumeralBase.hex).getValue());
Assert.assertEquals("0", c.convert(CalculatorNumeralBase.dec.createUnit("0"), CalculatorNumeralBase.hex).getValue());
Assert.assertEquals("3E7", c.convert(CalculatorNumeralBase.dec.createUnit("999"), CalculatorNumeralBase.hex).getValue());
Assert.assertEquals("76", c.convert(CalculatorNumeralBase.dec.createUnit("62"), CalculatorNumeralBase.oct).getValue());
Assert.assertEquals("12", c.convert(CalculatorNumeralBase.dec.createUnit("10"), CalculatorNumeralBase.oct).getValue());
Assert.assertEquals("15", c.convert(CalculatorNumeralBase.dec.createUnit("13"), CalculatorNumeralBase.oct).getValue());
Assert.assertEquals("0", c.convert(CalculatorNumeralBase.dec.createUnit("0"), CalculatorNumeralBase.oct).getValue());
Assert.assertEquals("10445", c.convert(CalculatorNumeralBase.dec.createUnit("4389"), CalculatorNumeralBase.oct).getValue());
}
@Test
public void testRandomConvert() throws Exception {
final Random random = new Random(new Date().getTime());
for (int i = 0; i < 100000; i++) {
final String value = String.valueOf(random.nextInt());
Assert.assertEquals(value, convertChain(value, CalculatorNumeralBase.dec, CalculatorNumeralBase.oct, CalculatorNumeralBase.oct, CalculatorNumeralBase.bin, CalculatorNumeralBase.dec));
Assert.assertEquals(value, convertChain(value, CalculatorNumeralBase.dec, CalculatorNumeralBase.bin, CalculatorNumeralBase.hex, CalculatorNumeralBase.dec, CalculatorNumeralBase.dec));
Assert.assertEquals(value, convertChain(value, CalculatorNumeralBase.dec, CalculatorNumeralBase.dec, CalculatorNumeralBase.hex, CalculatorNumeralBase.oct, CalculatorNumeralBase.dec));
Assert.assertEquals(value, convertChain(value, CalculatorNumeralBase.dec, CalculatorNumeralBase.hex, CalculatorNumeralBase.bin, CalculatorNumeralBase.oct, CalculatorNumeralBase.dec));
}
}
@Nonnull
private String convertChain(@Nonnull String value, @Nonnull CalculatorNumeralBase baseAndroid, @Nonnull CalculatorNumeralBase... typeAndroids) {
Unit<String> unit = baseAndroid.createUnit(value);
for (CalculatorNumeralBase typeAndroid : typeAndroids) {
unit = CalculatorNumeralBase.getConverter().convert(unit, typeAndroid);
}
return unit.getValue();
}
}