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#[cfg(test)]
use std::collections::HashMap;
#[cfg(not(test))]
use std::env;
use std::ffi::OsString;
#[derive(Default)]
pub struct Env<'a> {
/// A HashMap of environment variable mocks
#[cfg(test)]
pub env: HashMap<&'a str, String>,
#[cfg(not(test))]
_marker: std::marker::PhantomData<&'a ()>,
}
impl<'a> Env<'a> {
// Retrieves a environment variable from the os or from a table if in testing mode
#[cfg(test)]
pub fn get_env<K: AsRef<str>>(&self, key: K) -> Option<String> {
self.env
.get(key.as_ref())
.map(std::string::ToString::to_string)
}
#[cfg(not(test))]
#[inline]
pub fn get_env<K: AsRef<str>>(&self, key: K) -> Option<String> {
env::var(key.as_ref()).ok()
}
// Retrieves a environment variable from the os or from a table if in testing mode (os version)
#[cfg(test)]
pub fn get_env_os<K: AsRef<str>>(&self, key: K) -> Option<OsString> {
self.env.get(key.as_ref()).map(OsString::from)
}
#[cfg(not(test))]
#[inline]
pub fn get_env_os<K: AsRef<str>>(&self, key: K) -> Option<OsString> {
env::var_os(key.as_ref())
}
#[cfg(test)]
pub fn insert(&mut self, k: &'a str, v: String) -> Option<String> {
self.env.insert(k, v)
}
}
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