cynic-codegen 3.13.2

Procedural macro code generation for cynic - a code first GraphQL client for Rust
Documentation 
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use std::{io::Write, process::Stdio};

use insta::assert_snapshot;
use rstest::rstest;
use syn::parse_quote;

use super::inline_fragments_derive;

#[rstest]
#[case::union_type(
    "union_type",
    parse_quote!(
        #[derive(InlineFragments, Serialize)]
        #[cynic(schema_path = "../cynic/tests/test-schema.graphql")]
        enum PostOrAuthor {
            Post(Post),
            Author(Author),
            #[cynic(fallback)]
            Other
        }
    )
)]
#[case::interface(
    "interface",
    parse_quote!(
        #[derive(InlineFragments, Serialize)]
        #[cynic(schema_path = "../cynic/tests/test-schema.graphql")]
        enum Node {
            Post(Post),
            Author(Author),
            #[cynic(fallback)]
            Other
        }
    ),
)]
fn snapshot_inline_fragments_derive(#[case] snapshot_name: &str, #[case] input: syn::DeriveInput) {
    let tokens = inline_fragments_derive(&input).unwrap();

    assert_snapshot!(snapshot_name, format_code(format!("{}", tokens)));
}

fn format_code(input: String) -> String {
    let mut cmd = std::process::Command::new("rustfmt")
        .stdin(Stdio::piped())
        .stdout(Stdio::piped())
        .stderr(Stdio::inherit())
        .spawn()
        .expect("failed to execute rustfmt");

    write!(cmd.stdin.as_mut().unwrap(), "{}", input).unwrap();

    std::str::from_utf8(&cmd.wait_with_output().unwrap().stdout)
        .unwrap()
        .to_owned()
}