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// Copyright (C) 2019 The Android Open Source Project
//
// 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.google.gerrit.extensions.client;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static com.google.gerrit.extensions.client.ListOptionTest.MyOption.BAR;
import static com.google.gerrit.extensions.client.ListOptionTest.MyOption.BAZ;
import static com.google.gerrit.extensions.client.ListOptionTest.MyOption.FOO;
import static org.junit.Assert.fail;
import com.google.common.math.IntMath;
import com.google.gerrit.extensions.restapi.BadRequestException;
import java.util.EnumSet;
import org.junit.Test;
public class ListOptionTest {
enum MyOption implements ListOption {
FOO(0),
BAR(1),
BAZ(17);
private final int value;
MyOption(int value) {
this.value = value;
}
@Override
public int getValue() {
return value;
}
}
@Test
public void fromHexString() {
try {
// TODO(hanwen): move GerritJUnit.assertThrows to a place that doesn't depend on everything.
ListOption.fromHexString(MyOption.class, "xyz");
fail("must throw");
} catch (BadRequestException e) {
assertThat(e.getMessage()).contains("32-bit integer");
}
}
@Test
public void fromBits() {
assertThat(IntMath.pow(2, BAZ.getValue())).isEqualTo(131072);
assertThat(ListOption.fromBits(MyOption.class, 0)).isEmpty();
assertThat(ListOption.fromBits(MyOption.class, 1)).containsExactly(FOO);
assertThat(ListOption.fromBits(MyOption.class, 2)).containsExactly(BAR);
assertThat(ListOption.fromBits(MyOption.class, 131072)).containsExactly(BAZ);
assertThat(ListOption.fromBits(MyOption.class, 3)).containsExactly(FOO, BAR);
assertThat(ListOption.fromBits(MyOption.class, 131073)).containsExactly(FOO, BAZ);
assertThat(ListOption.fromBits(MyOption.class, 131074)).containsExactly(BAR, BAZ);
assertThat(ListOption.fromBits(MyOption.class, 131075)).containsExactly(FOO, BAR, BAZ);
assertFromBitsFails(4);
assertFromBitsFails(8);
assertFromBitsFails(16);
assertFromBitsFails(250);
}
private void assertFromBitsFails(int v) {
try {
EnumSet<MyOption> opts = ListOption.fromBits(MyOption.class, v);
assertWithMessage("expected RuntimeException for fromBits(%s), got: %s", v, opts).fail();
} catch (RuntimeException e) {
// Expected.
}
}
}