false positive when matching enum

[tspiteri]

For this code

enum E{
    A,
    B(i32),
}
pub fn foo(i: i32) -> i32 {
    let e = if i == 0 { E::A } else { E::B(i) };
    match e {
        E::A => 1,
        E::B(x) => x,
    }
}

#[cfg(test)]
mod tests {
    #[test]
    fn it_works() {
        use crate::foo;
        assert_eq!(foo(0), 1);
        assert_eq!(foo(2), 2);
    }
}

I get a false positive for an uncovered line 7 (match e).

$ cargo tarpaulin -V
cargo-tarpaulin version: 0.8.7

[grim7reaper]

I'm also affected by this.

In the following code:

impl fmt::Display for DateError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match *self {
            Self::InvalidMonth => write!(f, "invalid month"),
            Self::InvalidDay => write!(f, "invalid day of the month"),
        }
    }
}

The match *self { is shown as not covered.

Anything we can do on our side to help you pinpoint/fix the issue? 🙂

[xd009642]

Closing in favour of the new mega-coverage issue #351