如何在Junit中使用assertEquals解决此问题？

Question

Please help me with the following problem, My Junit test fails because my output is

"09:39:43.704 [main] INFO by.iba.gomel.ShapeController - 145"

But i need just "145" ShapeController.LOGGER.info("{}", ShapeController.sum);

@Test
public void testSumma() {

    final Shape[] newShapes = new Shape[5];
    ShapeController.initializeArray(newShapes);
    ShapeController.summa(newShapes);
    Assert.assertEquals("these objects should be  equal", "145", this.log.getLog());
}

Answer 1

If you are not changing the log format and the class name you can use this.log.getLog().split("ShapeController - ")[1] .

But be wary of such hard-coded things. Anyways if you change something this test case will break and notify you.

Answer 2

You can use Java Library such as Hamcrest to make an assertion in a sentence if it ends with the number or word, such as 1 :

assertThat("myStringOfNote", endsWith("Note"))

This can be translated into your use case as :

assertThat(this.log.getLog(), endsWith("145"))