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package bjc.esodata;
import static org.junit.Assert.*;
import java.util.*;
import org.junit.*;
import bjc.*;
@SuppressWarnings("javadoc")
public class NestListTest
{
@Test
public void testAddItemElement() {
NestList<String> nl = new NestList<>();
assertEquals("NestLists are created empty", 0, nl.size());
nl.addItems("hello", "there");
assertEquals("Adding two items to an empty NestList makes it size 2",
2, nl.size());
}
@Test
public void testAddItemNestListOfElement() {
NestList<String> nl = new NestList<>();
NestList<String> nl2 = new NestList<>();
nl2.addItem("friend");
nl.addItems("hello", "there");
nl.addItem(nl2);
assertEquals("Adding a sublist increases the size of NestList by 1",
3, nl.size());
}
@Test
public void testAddSublist() {
NestList<String> nl = new NestList<>();
nl.addSublist("here", "is", "a");
nl.addItem("thing");
assertEquals("addSublist increases size of NestList by 1", 2, nl.size());
}
@Test
public void testFlatIterator() {
NestList<String> nl1 = new NestList<>();
NestList<String> nl2 = new NestList<>();
NestList<String> nl3 = new NestList<>();
nl1.addItems("of", "means");
nl2.addItem(nl1);
nl3.addItem("Hello");
nl3.addSublist("my", "unfortunate");
nl3.addItem("friend");
nl3.addItem(nl2);
TestUtils.assertIteratorEquals(nl3.flatIterator(),
"Hello", "my", "unfortunate", "friend", "of", "means");
}
@Test
public void testFlatten() {
NestList<String> nl1A = new NestList<>();
NestList<String> nl2A = new NestList<>();
NestList<String> nl3A = new NestList<>();
nl1A.addItems("of", "means");
nl2A.addItem(nl1A);
nl3A.addItem("Hello");
nl3A.addSublist("my", "unfortunate");
nl3A.addItem("friend");
nl3A.addItem(nl2A);
NestList<String> nl1B = new NestList<>();
NestList<String> nl2B = new NestList<>();
nl1B.addItems("of", "means");
nl2B.addItems("Hello", "my", "unfortunate", "friend");
nl2B.addItem(nl1B);
assertEquals("Flatten removes one level of nesting",
nl2B, nl3A.flatten());
}
@Test
public void testDeepFlatten() {
NestList<String> nl1 = new NestList<>();
NestList<String> nl2 = new NestList<>();
NestList<String> nl3 = new NestList<>();
nl1.addItems("of", "means");
nl2.addItem(nl1);
nl3.addItem("Hello");
nl3.addSublist("my", "unfortunate");
nl3.addItem("friend");
nl3.addItem(nl2);
List<String> testList = Arrays.asList(
"Hello", "my", "unfortunate", "friend", "of", "means");
assertEquals("deepFlatten flattens out all sublists",
testList, nl3.deepFlatten());
}
}
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