> For the complete documentation index, see [llms.txt](https://lin-4.gitbook.io/test/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lin-4.gitbook.io/test/unit-test.md).

# Unit Test

### 1. Assert.assertEquals(expected, actual, delta)

While delta is the maximum difference(delta) between expected and actual for which both numbers are still considered equal.

eg:

```java
Assert.assertEquals(0.0012f, 0.0014f, 0.0002); //true
Assert.assertEquals(0.0012f, 0.0014f, 0.0001); //false
```

### 2. positive testing\&negative testing

<https://www.softwaretestingclass.com/positive-and-negative-testing-in-software-testing/>

## **Positive Testing:**

Positive Testing is testing process where the system validated against the valid input data. In this testing tester always check for only valid set of values and check if a application behaves as expected with its expected inputs. The main intention of this testing is to check whether software application not showing error when not supposed to & showing error when supposed to. Such testing is to be carried out keeping positive point of view & only execute the positive scenario.Positive Testingalways tries to prove that a given product and project always meets the requirements and specifications. Under Positive testing is test the normal day to day life scenarios and check the expected behavior of application.

## **Negative Testing**:

Negative Testing is testing process where the system validated against the invalid input data. A negative test checks if a application behaves as expected with its negative inputs. The main intention of this testing is to check whether software application not showing error when supposed to & showing error when not supposed to. Such testing is to be carried out keeping negative point of view & only execute the test cases for only invalid set of input data.