fn drop(&mut self) {
        if !thread::panicking() {
            self.verify();
        }
    }
/// All expectations will be verified when the mock object is dropped, 
/// panicking if any of them are unmet.
///
/// In the case where the Expectations object is being dropped because the
/// thread is _already_ panicking, the Expectations object is not verified.
All expectations will be verified when the mock object is dropped,
panicking if any of them are unmet.

In the case where the Expectations object is being dropped because the
thread is _already_ panicking, the Expectations object is not verified.
All expectations will be verified when the mock object is dropped panicking if any of them are unmet . In the case where the Expectations object is being dropped because the thread is _already_ panicking the Expectations object is not verified .
fn drop(&mut self) {
        if !thread::panicking() {
            self.verify();
        }
    }
fn drop ( & mut self ) { if ! thread :: panicking ( ) { self . verify ( ) ; } }
All expectations will be verified when the mock object is dropped,
panicking if any of them are unmet.
All expectations will be verified when the mock object is dropped panicking if any of them are unmet .
&mut self
&mut self