Ensure arg is not valid
assert_not arg (anything)
Raises an exception if the argument is not either nil or false.
Introduced in v3.3
Examples
| # Example 1 |
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assert_not false
assert_not nil
assert_not 1 == 5
assert true
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# Simple assertions
# As false is either nil or false, this assertion passes
# As nil is either nil or false, this assertion passes
# These numbers are not equal
# This will raise an exception
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| # Example 2 |
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assert_not true , "oops"
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# Communicating error messages
# This will raise an exception containing the message "oops"
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