/** no block information. */
@Test
public void no_info() {
BlockBuilder builder = new BlockBuilder();
builder.seek(1000);
List<DirectInputFragment> results = builder.compute(50, 100, true, true);
assertThat(results.size(), is(10));
}
/** simple testing. */
@Test
public void simple() {
BlockBuilder builder = new BlockBuilder();
builder.add(100, "a");
List<DirectInputFragment> results = builder.compute(50, 100, true, true);
assertThat(results.size(), is(1));
assertThat(find(results, 0).getOwnerNodeNames(), hasItem("a"));
}
/** file is too small. */
@Test
public void too_small() {
BlockBuilder builder = new BlockBuilder();
builder.add(10, "a");
builder.add(10, "b");
builder.add(10, "c");
List<DirectInputFragment> results = builder.compute(100, 200, true, true);
assertThat(results.size(), is(1));
}
/** tail blocks are too small. */
@Test
public void ignore_little_locality() {
BlockBuilder builder = new BlockBuilder();
builder.add(100, "a");
builder.add(1, "b", "c", "d");
List<DirectInputFragment> results = builder.compute(50, 200, true, true);
assertThat(results.size(), is(1));
assertThat(results.get(0).getOwnerNodeNames(), hasItem("a"));
assertThat(results.get(0).getOwnerNodeNames(), not(hasItem("b")));
}
/** head blocks are too small. */
@Test
public void head_too_small() {
BlockBuilder builder = new BlockBuilder();
builder.add(10, "b");
builder.add(10, "c");
builder.add(10, "d");
builder.add(100, "a");
List<DirectInputFragment> results = builder.compute(50, 200, true, true);
assertThat(results.size(), is(1));
assertThat(results.get(0).getOwnerNodeNames(), hasItem("a"));
}
/** per prefered size. */
@Test
public void pref_size() {
BlockBuilder builder = new BlockBuilder();
builder.add(400, "a");
List<DirectInputFragment> results = builder.compute(10, 80, true, true);
assertThat(results.size(), is(5));
assertThat(results.get(0).getOwnerNodeNames(), hasItem("a"));
assertThat(results.get(1).getOwnerNodeNames(), hasItem("a"));
assertThat(results.get(2).getOwnerNodeNames(), hasItem("a"));
assertThat(results.get(3).getOwnerNodeNames(), hasItem("a"));
assertThat(results.get(4).getOwnerNodeNames(), hasItem("a"));
}
/** empty file. */
@Test
public void empty() {
BlockBuilder builder = new BlockBuilder();
List<DirectInputFragment> results = builder.compute(50, 100, true, true);
assertThat(results.size(), is(1));
}