示例#1
0
  @Test
  public void testPeek() {
    String el0 = "firstElement0";
    String el1 = "firstElement1";
    String el2 = "firstElement2";
    String el3 = "firstElement3";

    CustomStack<String> customStack = new CustomStack<String>();

    customStack.push(el0);
    assertSame(el0, customStack.peek());
    customStack.push(el1);
    assertSame(el1, customStack.peek());
    customStack.push(el2);
    assertSame(el2, customStack.peek());
    customStack.push(el3);
    assertSame(el3, customStack.peek());
    customStack.push(el1);
    assertSame(el1, customStack.peek());
    customStack.pop();
    assertSame(el3, customStack.peek());
    customStack.pop();
    assertSame(el2, customStack.peek());
    customStack.pop();
    assertSame(el1, customStack.peek());
    customStack.pop();
    assertSame(el0, customStack.peek());
  }
示例#2
0
  @Test
  public void testSearch() {
    String el0 = "firstElement0";
    String el1 = "firstElement1";
    String el2 = "firstElement2";
    String el3 = "firstElement3";

    CustomStack<String> customStack = new CustomStack<String>();

    customStack.push(el0);
    customStack.push(el1);
    customStack.push(el2);
    customStack.push(el3);

    assertSame(3, customStack.search(el0));
    assertSame(2, customStack.search(el1));
    assertSame(1, customStack.search(el2));
    assertSame(0, customStack.search(el3));
    assertSame(-1, customStack.search("nonExisting1"));

    customStack.push(el3);
    customStack.push(el2);
    customStack.push(el0);
    customStack.push(el1);

    assertSame(1, customStack.search(el0));
    assertSame(0, customStack.search(el1));
    assertSame(2, customStack.search(el2));
    assertSame(3, customStack.search(el3));
    assertSame(-1, customStack.search("nonExisting2"));

    customStack.pop();
    customStack.pop();

    assertSame(5, customStack.search(el0));
    assertSame(4, customStack.search(el1));
    assertSame(0, customStack.search(el2));
    assertSame(1, customStack.search(el3));
    assertSame(-1, customStack.search("nonExisting3"));

    customStack.pop();
    customStack.pop();
    customStack.pop();
    customStack.pop();

    assertSame(1, customStack.search(el0));
    assertSame(0, customStack.search(el1));
    assertSame(-1, customStack.search(el2));
    assertSame(-1, customStack.search(el3));
  }
示例#3
0
 @Test
 public void testIsMepty() {
   CustomStack<String> customStack = new CustomStack<String>();
   assertTrue(customStack.empty());
   customStack.push("element1");
   assertFalse(customStack.empty());
   customStack.pop();
   assertTrue(customStack.empty());
 }