#[non_exhaustive]
pub enum UpdateMode {
    Never,
    Always,
}
Available on crate features test and svg only.
Expand description

Strategy for saving a new snapshot on a test failure within TestConfig::test() and related methods.

Variants (Non-exhaustive)

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Never

Never create a new snapshot on test failure.

Always

Always create a new snapshot on test failure.

Implementations

Reads the update mode from the TERM_TRANSCRIPT_UPDATE env variable.

If the TERM_TRANSCRIPT_UPDATE variable is not set, the output depends on whether the executable is running in CI (which is detected by the presence of the CI env variable):

Panics

If the TERM_TRANSCRIPT_UPDATE env variable is set to an unrecognized value (something other than never or always), this method will panic.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.