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Testing and Exception Handling in Kotlin
3 min readJan 24, 2024
Unit Testing Exception Scenarios:
Unit testing is a practice in software development where individual units or components of a program are tested in isolation. This ensures that each unit works as intended. Exception scenarios are situations where your code is expected to throw an exception (an unexpected event) under certain conditions.
Code Example:
Suppose you have a simple function that divides two numbers and you want to test how it handles division by zero.
class MathOperations {
fun divide(dividend: Int, divisor: Int): Int {
if (divisor == 0) {
throw IllegalArgumentException("Cannot divide by zero.")
}
return dividend / divisor
}
}class MathOperations { fun divide(dividend: Int, divisor: Int): Int { if (divisor == 0) {throw IllegalArgumentException("Cannot divide by zero.") } return dividend / divisor } }
import org.junit.Test
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
#And here's how you can write a unit…