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package cgeo.geocaching.utils;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.LinkedList;
import java.util.List;
import junit.framework.TestCase;
public class MiscUtilsTest extends TestCase {
public static void testBufferEmpty() {
for (final List<String> s : MiscUtils.buffer(new LinkedList<String>(), 10)) {
assertThat(s).isNotNull(); // only to silence findbugs and the compiler
fail("empty collection should not iterate");
}
}
public static void testMultiple() {
final List<Integer> list = new LinkedList<Integer>();
for (int i = 0; i < 50; i++) {
list.add(i);
}
int count = 0;
for (final List<Integer> subList: MiscUtils.buffer(list, 10)) {
assertThat(subList).hasSize(10);
assertThat(subList.get(0)).as("sublist content").isEqualTo(count * 10);
count++;
}
assertThat(count).isEqualTo(5);
}
public static void testNonMultiple() {
final List<Integer> list = new LinkedList<Integer>();
for (int i = 0; i < 48; i++) {
list.add(i);
}
int count = 0;
for (final List<Integer> subList: MiscUtils.buffer(list, 10)) {
assertThat(subList.size()).overridingErrorMessage("each sublist has no more than the allowed number of arguments").isLessThanOrEqualTo(10);
count += subList.size();
}
assertEquals("all the elements were seen", 48, count);
}
public static void testArguments() {
try {
MiscUtils.buffer(new LinkedList<Integer>(), 0);
fail("an exception should be raised");
} catch (final IllegalArgumentException e) {
// Ok
} catch (final Exception e) {
fail("bad exception raised: " + e);
}
}
}
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