vertx / io.vertx.reactivex.ext.unit / TestContext / assertInRange

# assertInRange

`open fun assertInRange(expected: Double, actual: Double, delta: Double): TestContext`

Asserts that the `expected` double argument is equals to the `actual` double argument within a positive delta. If the arguments do not satisfy this, an assertion error is thrown otherwise the execution continue.

### Parameters

`expected` - the object the actual object is supposedly equals to

`actual` - the actual object to test

`delta` - the maximum delta

Return
a reference to this, so the API can be used fluently

`open fun assertInRange(expected: Double, actual: Double, delta: Double, message: String): TestContext`

Asserts that the `expected` double argument is equals to the `actual` double argument within a positive delta. If the arguments do not satisfy this, an assertion error is thrown otherwise the execution continue.

### Parameters

`expected` - the object the actual object is supposedly equals to

`actual` - the actual object to test

`delta` - the maximum delta

`message` - the failure message

Return
a reference to this, so the API can be used fluently