Extel Parameterized - Writing Parameterized Tests in Rust

Extel Parameterized, or just parameterized, is a proc macro crate that serves to offer a parameters macro for converting single argument functions into a valid function that Extel can interpret.

```rust use extel::{pass, fail, cmd, inittestsuite, ExtelResult, RunnableTestSet, TestConfig}; use extel_parameterized::parameters;

fn singletest() -> ExtelResult { let mut mycmd = cmd!("echo -n \"hello world\""); let output = mycmd.output().unwrap(); let stringoutput = String::fromutf8lossy(&output.stdout);

if string_output == *"hello world" {
    pass!()
} else {
    fail!("expected 'hello world', got '{}'", string_output)
}

}

[parameters(1, 2, -2, 4)]

fn param_test(x: i32) -> ExtelResult { if x >= 0 { pass!() } else { fail!("{} < 0", x) } }

fn main() { inittestsuite!(ExtelDemo, singletest, paramtest); ExtelDemo::run(TestConfig::default()); }