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meili-snap: get the test name from the name of the function

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Loïc Lecrenier 2022-10-24 16:29:18 +02:00 committed by Clément Renault
parent 1214a68a41
commit 92c41f0ef6
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GPG Key ID: 92ADA4E935E71FA4
1 changed files with 53 additions and 10 deletions
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63
meili-snap/src/lib.rs
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@ -16,16 +16,18 @@ pub fn hash_snapshot(snap: &str) -> String {
}
#[track_caller]
pub fn default_snapshot_settings_for_test(
name: Option<&str>,
) -> (insta::Settings, Cow<'_, str>, bool) {
pub fn default_snapshot_settings_for_test<'a>(
test_name: &str,
name: Option<&'a str>,
) -> (insta::Settings, Cow<'a, str>, bool) {
let mut settings = insta::Settings::clone_current();
settings.set_prepend_module_to_snapshot(false);
let path = Path::new(std::panic::Location::caller().file());
let filename = path.file_name().unwrap().to_str().unwrap();
settings.set_omit_expression(true);
let test_name = std::thread::current().name().unwrap().rsplit("::").next().unwrap().to_owned();
let test_name = test_name.strip_suffix("::{{closure}}").unwrap_or(test_name);
let test_name = test_name.rsplit("::").next().unwrap().to_owned();
let path = Path::new("snapshots").join(filename).join(&test_name);
settings.set_snapshot_path(path.clone());
@ -75,7 +77,18 @@ snapshot_hash!("hello world", name: "snap_name", @"5f93f983524def3dca464469d2cf9
#[macro_export]
macro_rules! snapshot_hash {
($value:expr, @$inline:literal) => {
let (settings, snap_name, store_whole_snapshot) = $crate::default_snapshot_settings_for_test(None);
let test_name = {
fn f() {}
fn type_name_of_val<T>(_: T) -> &'static str {
std::any::type_name::<T>()
}
type_name_of_val(f).strip_suffix("::f").unwrap_or("")
};
let test_name = test_name
.strip_suffix("::{{closure}}")
.unwrap_or(test_name);
let (settings, snap_name, store_whole_snapshot) = $crate::default_snapshot_settings_for_test(test_name, None);
settings.bind(|| {
let snap = format!("{}", $value);
let hash_snap = $crate::hash_snapshot(&snap);
@ -86,8 +99,16 @@ macro_rules! snapshot_hash {
});
};
($value:expr, name: $name:expr, @$inline:literal) => {
let test_name = {
fn f() {}
fn type_name_of_val<T>(_: T) -> &'static str {
std::any::type_name::<T>()
}
type_name_of_val(f).strip_suffix("::f").unwrap_or("")
};
let snap_name = format!("{}", $name);
let (settings, snap_name, store_whole_snapshot) = $crate::default_snapshot_settings_for_test(Some(&snap_name));
let (settings, snap_name, store_whole_snapshot) = $crate::default_snapshot_settings_for_test(test_name, Some(&snap_name));
settings.bind(|| {
let snap = format!("{}", $value);
let hash_snap = $crate::hash_snapshot(&snap);
@ -130,8 +151,19 @@ snapshot!(format!("{:?}", vec![1, 2]), @"[1, 2]");
#[macro_export]
macro_rules! snapshot {
($value:expr, name: $name:expr) => {
let test_name = {
fn f() {}
fn type_name_of_val<T>(_: T) -> &'static str {
std::any::type_name::<T>()
}
type_name_of_val(f).strip_suffix("::f").unwrap_or("")
};
let test_name = test_name
.strip_suffix("::{{closure}}")
.unwrap_or(test_name);
let snap_name = format!("{}", $name);
let (settings, snap_name, _) = $crate::default_snapshot_settings_for_test(Some(&snap_name));
let (settings, snap_name, _) = $crate::default_snapshot_settings_for_test(test_name, Some(&snap_name));
settings.bind(|| {
let snap = format!("{}", $value);
meili_snap::insta::assert_snapshot!(format!("{}", snap_name), snap);
@ -140,14 +172,25 @@ macro_rules! snapshot {
($value:expr, @$inline:literal) => {
// Note that the name given as argument does not matter since it is only an inline snapshot
// We don't pass None because otherwise `meili-snap` will try to assign it a unique identifier
let (settings, _, _) = $crate::default_snapshot_settings_for_test(Some("_dummy_argument"));
let (settings, _, _) = $crate::default_snapshot_settings_for_test("", Some("_dummy_argument"));
settings.bind(|| {
let snap = format!("{}", $value);
meili_snap::insta::assert_snapshot!(snap, @$inline);
});
};
($value:expr) => {
let (settings, snap_name, _) = $crate::default_snapshot_settings_for_test(None);
let test_name = {
fn f() {}
fn type_name_of_val<T>(_: T) -> &'static str {
std::any::type_name::<T>()
}
type_name_of_val(f).strip_suffix("::f").unwrap_or("")
};
let test_name = test_name
.strip_suffix("::{{closure}}")
.unwrap_or(test_name);
let (settings, snap_name, _) = $crate::default_snapshot_settings_for_test(test_name, None);
settings.bind(|| {
let snap = format!("{}", $value);
meili_snap::insta::assert_snapshot!(format!("{}", snap_name), snap);
@ -202,7 +245,7 @@ mod tests {
snapshot!(120);
snapshot_hash!("", name: "", @"d41d8cd98f00b204e9800998ecf8427e");
// snapshot_hash!("", name: "", @"d41d8cd98f00b204e9800998ecf8427e");
}
}
}