nushell/tests/plugins/formats/eml.rs

use nu_test_support::nu_with_plugins;
use pretty_assertions::assert_eq;

const TEST_CWD: &str = "tests/fixtures/formats";

// Note: the tests can only run successfully if nushell binary is in `target/debug/`
// The To field in this email is just "to@example.com", which gets parsed out as the Address. The Name is empty.
#[test]
fn from_eml_get_to_field() {
    let actual = nu_with_plugins!(
        cwd: TEST_CWD,
        plugin: ("nu_plugin_formats"),
        "open sample.eml | get To.Address"
    );

    assert_eq!(actual.out, "to@example.com");
    let actual = nu_with_plugins!(
        cwd: TEST_CWD,
        plugin: ("nu_plugin_formats"),
        "open sample.eml | get To | get Name"
    );

    assert_eq!(actual.out, "");
}

// The Reply-To field in this email is "replyto@example.com" <replyto@example.com>, meaning both the Name and Address values are identical.
#[test]
fn from_eml_get_replyto_field() {
    let actual = nu_with_plugins!(
        cwd: TEST_CWD,
        plugin: ("nu_plugin_formats"),
        "open sample.eml | get Reply-To | get Address"
    );

    assert_eq!(actual.out, "replyto@example.com");

    let actual = nu_with_plugins!(
        cwd: TEST_CWD,
        plugin: ("nu_plugin_formats"),
        "open sample.eml | get Reply-To | get Name"
    );

    assert_eq!(actual.out, "replyto@example.com");
}

#[test]
fn from_eml_get_subject_field() {
    let actual = nu_with_plugins!(
        cwd: TEST_CWD,
        plugin: ("nu_plugin_formats"),
        "open sample.eml | get Subject"
    );

    assert_eq!(actual.out, "Test Message");
}

#[test]
fn from_eml_get_another_header_field() {
    let actual = nu_with_plugins!(
        cwd: TEST_CWD,
        plugin: ("nu_plugin_formats"),
        "open sample.eml | get MIME-Version"
    );

    assert_eq!(actual.out, "1.0");
}