R: assert/check/test/Closed

testClosed {set6} | R Documentation

## assert/check/test/Closed

### Description

Validation checks to test if a given object is closed.

### Usage

    testClosed(object, errormsg = "This is not a closed set")

    checkClosed(object, errormsg = "This is not a closed set")

    assertClosed(object, errormsg = "This is not a closed set")

### Arguments

`object` | object to test
`errormsg` | error message to overwrite default if check fails

### Value

If check passes then `assert` returns `object` invisibly and `test`/`check` return `TRUE`. If check fails, `assert` stops code with error, `check` returns an error message as string, and `test` returns `FALSE`.

### Examples

    testClosed(Interval$new(1, 10, type = "[]"))
    testClosed(Interval$new(1, 10, type = "(]"))

[Package set6 version 0.2.4 Index]