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78 lines
2.5 KiB
78 lines
2.5 KiB
use crate::{data::Data, Result};
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/// Attempts to deserialize a Data struct from the environment
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pub fn from_env() -> Result<Data> {
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Ok(envy::from_env()?)
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}
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/// Attempts to deserialize a Data struct from the environment. All keys are
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/// prefixed with the given prefix
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pub fn from_env_prefixed(prefix: &str) -> Result<Data> {
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Ok(envy::prefixed(prefix).from_env()?)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::{
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env,
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ops::FnOnce,
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panic::{catch_unwind, UnwindSafe},
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};
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fn withenv<F: FnOnce() -> R + UnwindSafe, R>(prefix: Option<&'static str>, test: F) -> R {
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env::set_var(makekey(prefix, "BASE"), "https://example.com");
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env::set_var(makekey(prefix, "CLIENT_ID"), "adbc01234");
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env::set_var(makekey(prefix, "CLIENT_SECRET"), "0987dcba");
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env::set_var(makekey(prefix, "REDIRECT"), "urn:ietf:wg:oauth:2.0:oob");
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env::set_var(makekey(prefix, "TOKEN"), "fedc5678");
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let result = catch_unwind(test);
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env::remove_var(makekey(prefix, "BASE"));
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env::remove_var(makekey(prefix, "CLIENT_ID"));
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env::remove_var(makekey(prefix, "CLIENT_SECRET"));
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env::remove_var(makekey(prefix, "REDIRECT"));
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env::remove_var(makekey(prefix, "TOKEN"));
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fn makekey(prefix: Option<&'static str>, key: &str) -> String {
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if let Some(prefix) = prefix {
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format!("{}{}", prefix, key)
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} else {
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key.to_string()
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}
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}
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result.expect("failed")
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}
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#[test]
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fn test_from_env_no_prefix() {
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let desered = withenv(None, || from_env()).expect("Couldn't deser");
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assert_eq!(
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desered,
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Data {
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base: "https://example.com".into(),
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client_id: "adbc01234".into(),
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client_secret: "0987dcba".into(),
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redirect: "urn:ietf:wg:oauth:2.0:oob".into(),
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token: "fedc5678".into(),
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}
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);
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}
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#[test]
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fn test_from_env_prefixed() {
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let desered = withenv(Some("APP_"), || from_env_prefixed("APP_")).expect("Couldn't deser");
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assert_eq!(
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desered,
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Data {
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base: "https://example.com".into(),
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client_id: "adbc01234".into(),
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client_secret: "0987dcba".into(),
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redirect: "urn:ietf:wg:oauth:2.0:oob".into(),
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token: "fedc5678".into(),
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}
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);
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}
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}
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