Expand description
insta-cmd is an extension to insta that lets you snapshot
a command that produces (text) output to stdout and stderr. It takes a
Command from the standard library, runs it and
snapshots the output alongside the exit code.
use std::process::Command;
use insta_cmd::assert_cmd_snapshot;
assert_cmd_snapshot!(Command::new("echo").arg("Hello World!"));Testing Binaries
If you want to test binaries from your own project you can use the
get_cargo_bin and get_cargo_example functions to retrieve the path to
your binary. Note that it’s unlikely that cargo will have built the binary
under normal circumstances so you will have to run cargo build --bin my-bin
or cargo build --example my-example before.
Afterwards you can test it like this:
use std::process::Command;
use insta_cmd::{assert_cmd_snapshot, get_cargo_bin};
assert_cmd_snapshot!(Command::new(get_cargo_bin("hello")).arg("first arg"));Macros
Runs an spawnable and snapshots the output.
Structs
A process builder, providing fine-grained control over how a new process should be spawned.
Like Command but sends some input to stdin.
Traits
Implemented by different types that can be spawned and snapshotted.
Functions
Helper function to return the path to an executable that cargo is building.
Helper function to return the path to an example that cargo is building.