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Diffstat (limited to 'third_party/rust/cookie/src/jar.rs')
| -rw-r--r-- | third_party/rust/cookie/src/jar.rs | 728 |
1 files changed, 728 insertions, 0 deletions
diff --git a/third_party/rust/cookie/src/jar.rs b/third_party/rust/cookie/src/jar.rs new file mode 100644 index 0000000000..83f2a15fdc --- /dev/null +++ b/third_party/rust/cookie/src/jar.rs @@ -0,0 +1,728 @@ +use std::collections::HashSet; + +#[cfg(feature = "signed")] use crate::secure::SignedJar; +#[cfg(feature = "private")] use crate::secure::PrivateJar; +#[cfg(any(feature = "signed", feature = "private"))] use crate::secure::Key; + +use crate::delta::DeltaCookie; +use crate::Cookie; + +/// A collection of cookies that tracks its modifications. +/// +/// A `CookieJar` provides storage for any number of cookies. Any changes made +/// to the jar are tracked; the changes can be retrieved via the +/// [delta](#method.delta) method which returns an iterator over the changes. +/// +/// # Usage +/// +/// A jar's life begins via [new](#method.new) and calls to +/// [`add_original`](#method.add_original): +/// +/// ```rust +/// use cookie::{Cookie, CookieJar}; +/// +/// let mut jar = CookieJar::new(); +/// jar.add_original(Cookie::new("name", "value")); +/// jar.add_original(Cookie::new("second", "another")); +/// ``` +/// +/// Cookies can be added via [add](#method.add) and removed via +/// [remove](#method.remove). Finally, cookies can be looked up via +/// [get](#method.get): +/// +/// ```rust +/// # use cookie::{Cookie, CookieJar}; +/// let mut jar = CookieJar::new(); +/// jar.add(Cookie::new("a", "one")); +/// jar.add(Cookie::new("b", "two")); +/// +/// assert_eq!(jar.get("a").map(|c| c.value()), Some("one")); +/// assert_eq!(jar.get("b").map(|c| c.value()), Some("two")); +/// +/// jar.remove(Cookie::named("b")); +/// assert!(jar.get("b").is_none()); +/// ``` +/// +/// # Deltas +/// +/// A jar keeps track of any modifications made to it over time. The +/// modifications are recorded as cookies. The modifications can be retrieved +/// via [delta](#method.delta). Any new `Cookie` added to a jar via `add` +/// results in the same `Cookie` appearing in the `delta`; cookies added via +/// `add_original` do not count towards the delta. Any _original_ cookie that is +/// removed from a jar results in a "removal" cookie appearing in the delta. A +/// "removal" cookie is a cookie that a server sends so that the cookie is +/// removed from the client's machine. +/// +/// Deltas are typically used to create `Set-Cookie` headers corresponding to +/// the changes made to a cookie jar over a period of time. +/// +/// ```rust +/// # use cookie::{Cookie, CookieJar}; +/// let mut jar = CookieJar::new(); +/// +/// // original cookies don't affect the delta +/// jar.add_original(Cookie::new("original", "value")); +/// assert_eq!(jar.delta().count(), 0); +/// +/// // new cookies result in an equivalent `Cookie` in the delta +/// jar.add(Cookie::new("a", "one")); +/// jar.add(Cookie::new("b", "two")); +/// assert_eq!(jar.delta().count(), 2); +/// +/// // removing an original cookie adds a "removal" cookie to the delta +/// jar.remove(Cookie::named("original")); +/// assert_eq!(jar.delta().count(), 3); +/// +/// // removing a new cookie that was added removes that `Cookie` from the delta +/// jar.remove(Cookie::named("a")); +/// assert_eq!(jar.delta().count(), 2); +/// ``` +#[derive(Default, Debug, Clone)] +pub struct CookieJar { + original_cookies: HashSet<DeltaCookie>, + delta_cookies: HashSet<DeltaCookie>, +} + +impl CookieJar { + /// Creates an empty cookie jar. + /// + /// # Example + /// + /// ```rust + /// use cookie::CookieJar; + /// + /// let jar = CookieJar::new(); + /// assert_eq!(jar.iter().count(), 0); + /// ``` + pub fn new() -> CookieJar { + CookieJar::default() + } + + /// Returns a reference to the `Cookie` inside this jar with the name + /// `name`. If no such cookie exists, returns `None`. + /// + /// # Example + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// assert!(jar.get("name").is_none()); + /// + /// jar.add(Cookie::new("name", "value")); + /// assert_eq!(jar.get("name").map(|c| c.value()), Some("value")); + /// ``` + pub fn get(&self, name: &str) -> Option<&Cookie<'static>> { + self.delta_cookies + .get(name) + .or_else(|| self.original_cookies.get(name)) + .and_then(|c| if c.removed { None } else { Some(&c.cookie) }) + } + + /// Adds an "original" `cookie` to this jar. If an original cookie with the + /// same name already exists, it is replaced with `cookie`. Cookies added + /// with `add` take precedence and are not replaced by this method. + /// + /// Adding an original cookie does not affect the [delta](#method.delta) + /// computation. This method is intended to be used to seed the cookie jar + /// with cookies received from a client's HTTP message. + /// + /// For accurate `delta` computations, this method should not be called + /// after calling `remove`. + /// + /// # Example + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// jar.add_original(Cookie::new("name", "value")); + /// jar.add_original(Cookie::new("second", "two")); + /// + /// assert_eq!(jar.get("name").map(|c| c.value()), Some("value")); + /// assert_eq!(jar.get("second").map(|c| c.value()), Some("two")); + /// assert_eq!(jar.iter().count(), 2); + /// assert_eq!(jar.delta().count(), 0); + /// ``` + pub fn add_original(&mut self, cookie: Cookie<'static>) { + self.original_cookies.replace(DeltaCookie::added(cookie)); + } + + /// Adds `cookie` to this jar. If a cookie with the same name already + /// exists, it is replaced with `cookie`. + /// + /// # Example + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// jar.add(Cookie::new("name", "value")); + /// jar.add(Cookie::new("second", "two")); + /// + /// assert_eq!(jar.get("name").map(|c| c.value()), Some("value")); + /// assert_eq!(jar.get("second").map(|c| c.value()), Some("two")); + /// assert_eq!(jar.iter().count(), 2); + /// assert_eq!(jar.delta().count(), 2); + /// ``` + pub fn add(&mut self, cookie: Cookie<'static>) { + self.delta_cookies.replace(DeltaCookie::added(cookie)); + } + + /// Removes `cookie` from this jar. If an _original_ cookie with the same + /// name as `cookie` is present in the jar, a _removal_ cookie will be + /// present in the `delta` computation. To properly generate the removal + /// cookie, `cookie` must contain the same `path` and `domain` as the cookie + /// that was initially set. + /// + /// A "removal" cookie is a cookie that has the same name as the original + /// cookie but has an empty value, a max-age of 0, and an expiration date + /// far in the past. See also [`Cookie::make_removal()`]. + /// + /// # Example + /// + /// Removing an _original_ cookie results in a _removal_ cookie: + /// + /// ```rust + /// # extern crate cookie; + /// use cookie::{CookieJar, Cookie}; + /// use cookie::time::Duration; + /// + /// # fn main() { + /// let mut jar = CookieJar::new(); + /// + /// // Assume this cookie originally had a path of "/" and domain of "a.b". + /// jar.add_original(Cookie::new("name", "value")); + /// + /// // If the path and domain were set, they must be provided to `remove`. + /// jar.remove(Cookie::build("name", "").path("/").domain("a.b").finish()); + /// + /// // The delta will contain the removal cookie. + /// let delta: Vec<_> = jar.delta().collect(); + /// assert_eq!(delta.len(), 1); + /// assert_eq!(delta[0].name(), "name"); + /// assert_eq!(delta[0].max_age(), Some(Duration::seconds(0))); + /// # } + /// ``` + /// + /// Removing a new cookie does not result in a _removal_ cookie unless + /// there's an original cookie with the same name: + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// jar.add(Cookie::new("name", "value")); + /// assert_eq!(jar.delta().count(), 1); + /// + /// jar.remove(Cookie::named("name")); + /// assert_eq!(jar.delta().count(), 0); + /// + /// jar.add_original(Cookie::new("name", "value")); + /// jar.add(Cookie::new("name", "value")); + /// assert_eq!(jar.delta().count(), 1); + /// + /// jar.remove(Cookie::named("name")); + /// assert_eq!(jar.delta().count(), 1); + /// ``` + pub fn remove(&mut self, mut cookie: Cookie<'static>) { + if self.original_cookies.contains(cookie.name()) { + cookie.make_removal(); + self.delta_cookies.replace(DeltaCookie::removed(cookie)); + } else { + self.delta_cookies.remove(cookie.name()); + } + } + + /// Removes `cookie` from this jar completely. This method differs from + /// `remove` in that no delta cookie is created under any condition. Neither + /// the `delta` nor `iter` methods will return a cookie that is removed + /// using this method. + /// + /// # Example + /// + /// Removing an _original_ cookie; no _removal_ cookie is generated: + /// + /// ```rust + /// # extern crate cookie; + /// use cookie::{CookieJar, Cookie}; + /// use cookie::time::Duration; + /// + /// # fn main() { + /// let mut jar = CookieJar::new(); + /// + /// // Add an original cookie and a new cookie. + /// jar.add_original(Cookie::new("name", "value")); + /// jar.add(Cookie::new("key", "value")); + /// assert_eq!(jar.delta().count(), 1); + /// assert_eq!(jar.iter().count(), 2); + /// + /// // Now force remove the original cookie. + /// jar.force_remove(&Cookie::named("name")); + /// assert_eq!(jar.delta().count(), 1); + /// assert_eq!(jar.iter().count(), 1); + /// + /// // Now force remove the new cookie. + /// jar.force_remove(&Cookie::named("key")); + /// assert_eq!(jar.delta().count(), 0); + /// assert_eq!(jar.iter().count(), 0); + /// # } + /// ``` + pub fn force_remove<'a>(&mut self, cookie: &Cookie<'a>) { + self.original_cookies.remove(cookie.name()); + self.delta_cookies.remove(cookie.name()); + } + + /// Removes all delta cookies, i.e. all cookies not added via + /// [`CookieJar::add_original()`], from this `CookieJar`. This undoes any + /// changes from [`CookieJar::add()`] and [`CookieJar::remove()`] + /// operations. + /// + /// # Example + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// + /// // Only original cookies will remain after calling `reset_delta`. + /// jar.add_original(Cookie::new("name", "value")); + /// jar.add_original(Cookie::new("language", "Rust")); + /// + /// // These operations, represented by delta cookies, will be reset. + /// jar.add(Cookie::new("language", "C++")); + /// jar.remove(Cookie::named("name")); + /// + /// // All is normal. + /// assert_eq!(jar.get("name"), None); + /// assert_eq!(jar.get("language").map(Cookie::value), Some("C++")); + /// assert_eq!(jar.iter().count(), 1); + /// assert_eq!(jar.delta().count(), 2); + /// + /// // Resetting undoes delta operations. + /// jar.reset_delta(); + /// assert_eq!(jar.get("name").map(Cookie::value), Some("value")); + /// assert_eq!(jar.get("language").map(Cookie::value), Some("Rust")); + /// assert_eq!(jar.iter().count(), 2); + /// assert_eq!(jar.delta().count(), 0); + /// ``` + pub fn reset_delta(&mut self) { + self.delta_cookies = HashSet::new(); + } + + /// Returns an iterator over cookies that represent the changes to this jar + /// over time. These cookies can be rendered directly as `Set-Cookie` header + /// values to affect the changes made to this jar on the client. + /// + /// # Example + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// jar.add_original(Cookie::new("name", "value")); + /// jar.add_original(Cookie::new("second", "two")); + /// + /// // Add new cookies. + /// jar.add(Cookie::new("new", "third")); + /// jar.add(Cookie::new("another", "fourth")); + /// jar.add(Cookie::new("yac", "fifth")); + /// + /// // Remove some cookies. + /// jar.remove(Cookie::named("name")); + /// jar.remove(Cookie::named("another")); + /// + /// // Delta contains two new cookies ("new", "yac") and a removal ("name"). + /// assert_eq!(jar.delta().count(), 3); + /// ``` + pub fn delta(&self) -> Delta { + Delta { iter: self.delta_cookies.iter() } + } + + /// Returns an iterator over all of the cookies present in this jar. + /// + /// # Example + /// + /// ```rust + /// use cookie::{CookieJar, Cookie}; + /// + /// let mut jar = CookieJar::new(); + /// + /// jar.add_original(Cookie::new("name", "value")); + /// jar.add_original(Cookie::new("second", "two")); + /// + /// jar.add(Cookie::new("new", "third")); + /// jar.add(Cookie::new("another", "fourth")); + /// jar.add(Cookie::new("yac", "fifth")); + /// + /// jar.remove(Cookie::named("name")); + /// jar.remove(Cookie::named("another")); + /// + /// // There are three cookies in the jar: "second", "new", and "yac". + /// # assert_eq!(jar.iter().count(), 3); + /// for cookie in jar.iter() { + /// match cookie.name() { + /// "second" => assert_eq!(cookie.value(), "two"), + /// "new" => assert_eq!(cookie.value(), "third"), + /// "yac" => assert_eq!(cookie.value(), "fifth"), + /// _ => unreachable!("there are only three cookies in the jar") + /// } + /// } + /// ``` + pub fn iter(&self) -> Iter { + Iter { + delta_cookies: self.delta_cookies.iter() + .chain(self.original_cookies.difference(&self.delta_cookies)), + } + } + + /// Returns a read-only `PrivateJar` with `self` as its parent jar using the + /// key `key` to verify/decrypt cookies retrieved from the child jar. Any + /// retrievals from the child jar will be made from the parent jar. + /// + /// # Example + /// + /// ```rust + /// use cookie::{Cookie, CookieJar, Key}; + /// + /// // Generate a secure key. + /// let key = Key::generate(); + /// + /// // Add a private (signed + encrypted) cookie. + /// let mut jar = CookieJar::new(); + /// jar.private_mut(&key).add(Cookie::new("private", "text")); + /// + /// // The cookie's contents are encrypted. + /// assert_ne!(jar.get("private").unwrap().value(), "text"); + /// + /// // They can be decrypted and verified through the child jar. + /// assert_eq!(jar.private(&key).get("private").unwrap().value(), "text"); + /// + /// // A tampered with cookie does not validate but still exists. + /// let mut cookie = jar.get("private").unwrap().clone(); + /// jar.add(Cookie::new("private", cookie.value().to_string() + "!")); + /// assert!(jar.private(&key).get("private").is_none()); + /// assert!(jar.get("private").is_some()); + /// ``` + #[cfg(feature = "private")] + #[cfg_attr(all(nightly, doc), doc(cfg(feature = "private")))] + pub fn private<'a>(&'a self, key: &Key) -> PrivateJar<&'a Self> { + PrivateJar::new(self, key) + } + + /// Returns a read/write `PrivateJar` with `self` as its parent jar using + /// the key `key` to sign/encrypt and verify/decrypt cookies added/retrieved + /// from the child jar. + /// + /// Any modifications to the child jar will be reflected on the parent jar, + /// and any retrievals from the child jar will be made from the parent jar. + /// + /// # Example + /// + /// ```rust + /// use cookie::{Cookie, CookieJar, Key}; + /// + /// // Generate a secure key. + /// let key = Key::generate(); + /// + /// // Add a private (signed + encrypted) cookie. + /// let mut jar = CookieJar::new(); + /// jar.private_mut(&key).add(Cookie::new("private", "text")); + /// + /// // Remove a cookie using the child jar. + /// jar.private_mut(&key).remove(Cookie::named("private")); + /// ``` + #[cfg(feature = "private")] + #[cfg_attr(all(nightly, doc), doc(cfg(feature = "private")))] + pub fn private_mut<'a>(&'a mut self, key: &Key) -> PrivateJar<&'a mut Self> { + PrivateJar::new(self, key) + } + + /// Returns a read-only `SignedJar` with `self` as its parent jar using the + /// key `key` to verify cookies retrieved from the child jar. Any retrievals + /// from the child jar will be made from the parent jar. + /// + /// # Example + /// + /// ```rust + /// use cookie::{Cookie, CookieJar, Key}; + /// + /// // Generate a secure key. + /// let key = Key::generate(); + /// + /// // Add a signed cookie. + /// let mut jar = CookieJar::new(); + /// jar.signed_mut(&key).add(Cookie::new("signed", "text")); + /// + /// // The cookie's contents are signed but still in plaintext. + /// assert_ne!(jar.get("signed").unwrap().value(), "text"); + /// assert!(jar.get("signed").unwrap().value().contains("text")); + /// + /// // They can be verified through the child jar. + /// assert_eq!(jar.signed(&key).get("signed").unwrap().value(), "text"); + /// + /// // A tampered with cookie does not validate but still exists. + /// let mut cookie = jar.get("signed").unwrap().clone(); + /// jar.add(Cookie::new("signed", cookie.value().to_string() + "!")); + /// assert!(jar.signed(&key).get("signed").is_none()); + /// assert!(jar.get("signed").is_some()); + /// ``` + #[cfg(feature = "signed")] + #[cfg_attr(all(nightly, doc), doc(cfg(feature = "signed")))] + pub fn signed<'a>(&'a self, key: &Key) -> SignedJar<&'a Self> { + SignedJar::new(self, key) + } + + /// Returns a read/write `SignedJar` with `self` as its parent jar using the + /// key `key` to sign/verify cookies added/retrieved from the child jar. + /// + /// Any modifications to the child jar will be reflected on the parent jar, + /// and any retrievals from the child jar will be made from the parent jar. + /// + /// # Example + /// + /// ```rust + /// use cookie::{Cookie, CookieJar, Key}; + /// + /// // Generate a secure key. + /// let key = Key::generate(); + /// + /// // Add a signed cookie. + /// let mut jar = CookieJar::new(); + /// jar.signed_mut(&key).add(Cookie::new("signed", "text")); + /// + /// // Remove a cookie. + /// jar.signed_mut(&key).remove(Cookie::named("signed")); + /// ``` + #[cfg(feature = "signed")] + #[cfg_attr(all(nightly, doc), doc(cfg(feature = "signed")))] + pub fn signed_mut<'a>(&'a mut self, key: &Key) -> SignedJar<&'a mut Self> { + SignedJar::new(self, key) + } +} + +use std::collections::hash_set::Iter as HashSetIter; + +/// Iterator over the changes to a cookie jar. +pub struct Delta<'a> { + iter: HashSetIter<'a, DeltaCookie>, +} + +impl<'a> Iterator for Delta<'a> { + type Item = &'a Cookie<'static>; + + fn next(&mut self) -> Option<&'a Cookie<'static>> { + self.iter.next().map(|c| &c.cookie) + } +} + +use std::collections::hash_set::Difference; +use std::collections::hash_map::RandomState; +use std::iter::Chain; + +/// Iterator over all of the cookies in a jar. +pub struct Iter<'a> { + delta_cookies: Chain<HashSetIter<'a, DeltaCookie>, Difference<'a, DeltaCookie, RandomState>>, +} + +impl<'a> Iterator for Iter<'a> { + type Item = &'a Cookie<'static>; + + fn next(&mut self) -> Option<&'a Cookie<'static>> { + for cookie in self.delta_cookies.by_ref() { + if !cookie.removed { + return Some(&*cookie); + } + } + + None + } +} + +#[cfg(test)] +mod test { + use super::CookieJar; + use crate::Cookie; + + #[test] + #[allow(deprecated)] + fn simple() { + let mut c = CookieJar::new(); + + c.add(Cookie::new("test", "")); + c.add(Cookie::new("test2", "")); + c.remove(Cookie::named("test")); + + assert!(c.get("test").is_none()); + assert!(c.get("test2").is_some()); + + c.add(Cookie::new("test3", "")); + c.remove(Cookie::named("test2")); + c.remove(Cookie::named("test3")); + + assert!(c.get("test").is_none()); + assert!(c.get("test2").is_none()); + assert!(c.get("test3").is_none()); + } + + #[test] + fn jar_is_send() { + fn is_send<T: Send>(_: T) -> bool { + true + } + + assert!(is_send(CookieJar::new())) + } + + #[test] + #[cfg(all(feature = "signed", feature = "private"))] + fn iter() { + let key = crate::Key::generate(); + let mut c = CookieJar::new(); + + c.add_original(Cookie::new("original", "original")); + + c.add(Cookie::new("test", "test")); + c.add(Cookie::new("test2", "test2")); + c.add(Cookie::new("test3", "test3")); + assert_eq!(c.iter().count(), 4); + + c.signed_mut(&key).add(Cookie::new("signed", "signed")); + c.private_mut(&key).add(Cookie::new("encrypted", "encrypted")); + assert_eq!(c.iter().count(), 6); + + c.remove(Cookie::named("test")); + assert_eq!(c.iter().count(), 5); + + c.remove(Cookie::named("signed")); + c.remove(Cookie::named("test2")); + assert_eq!(c.iter().count(), 3); + + c.add(Cookie::new("test2", "test2")); + assert_eq!(c.iter().count(), 4); + + c.remove(Cookie::named("test2")); + assert_eq!(c.iter().count(), 3); + } + + #[test] + fn delta() { + use std::collections::HashMap; + use time::Duration; + + let mut c = CookieJar::new(); + + c.add_original(Cookie::new("original", "original")); + c.add_original(Cookie::new("original1", "original1")); + + c.add(Cookie::new("test", "test")); + c.add(Cookie::new("test2", "test2")); + c.add(Cookie::new("test3", "test3")); + c.add(Cookie::new("test4", "test4")); + + c.remove(Cookie::named("test")); + c.remove(Cookie::named("original")); + + assert_eq!(c.delta().count(), 4); + + let names: HashMap<_, _> = c.delta() + .map(|c| (c.name(), c.max_age())) + .collect(); + + assert!(names.get("test2").unwrap().is_none()); + assert!(names.get("test3").unwrap().is_none()); + assert!(names.get("test4").unwrap().is_none()); + assert_eq!(names.get("original").unwrap(), &Some(Duration::seconds(0))); + } + + #[test] + fn replace_original() { + let mut jar = CookieJar::new(); + jar.add_original(Cookie::new("original_a", "a")); + jar.add_original(Cookie::new("original_b", "b")); + assert_eq!(jar.get("original_a").unwrap().value(), "a"); + + jar.add(Cookie::new("original_a", "av2")); + assert_eq!(jar.get("original_a").unwrap().value(), "av2"); + } + + #[test] + fn empty_delta() { + let mut jar = CookieJar::new(); + jar.add(Cookie::new("name", "val")); + assert_eq!(jar.delta().count(), 1); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().count(), 0); + + jar.add_original(Cookie::new("name", "val")); + assert_eq!(jar.delta().count(), 0); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().count(), 1); + + jar.add(Cookie::new("name", "val")); + assert_eq!(jar.delta().count(), 1); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().count(), 1); + } + + #[test] + fn add_remove_add() { + let mut jar = CookieJar::new(); + jar.add_original(Cookie::new("name", "val")); + assert_eq!(jar.delta().count(), 0); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().filter(|c| c.value().is_empty()).count(), 1); + assert_eq!(jar.delta().count(), 1); + + // The cookie's been deleted. Another original doesn't change that. + jar.add_original(Cookie::new("name", "val")); + assert_eq!(jar.delta().filter(|c| c.value().is_empty()).count(), 1); + assert_eq!(jar.delta().count(), 1); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().filter(|c| c.value().is_empty()).count(), 1); + assert_eq!(jar.delta().count(), 1); + + jar.add(Cookie::new("name", "val")); + assert_eq!(jar.delta().filter(|c| !c.value().is_empty()).count(), 1); + assert_eq!(jar.delta().count(), 1); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().filter(|c| c.value().is_empty()).count(), 1); + assert_eq!(jar.delta().count(), 1); + } + + #[test] + fn replace_remove() { + let mut jar = CookieJar::new(); + jar.add_original(Cookie::new("name", "val")); + assert_eq!(jar.delta().count(), 0); + + jar.add(Cookie::new("name", "val")); + assert_eq!(jar.delta().count(), 1); + assert_eq!(jar.delta().filter(|c| !c.value().is_empty()).count(), 1); + + jar.remove(Cookie::named("name")); + assert_eq!(jar.delta().filter(|c| c.value().is_empty()).count(), 1); + } + + #[test] + fn remove_with_path() { + let mut jar = CookieJar::new(); + jar.add_original(Cookie::build("name", "val").finish()); + assert_eq!(jar.iter().count(), 1); + assert_eq!(jar.delta().count(), 0); + assert_eq!(jar.iter().filter(|c| c.path().is_none()).count(), 1); + + jar.remove(Cookie::build("name", "").path("/").finish()); + assert_eq!(jar.iter().count(), 0); + assert_eq!(jar.delta().count(), 1); + assert_eq!(jar.delta().filter(|c| c.value().is_empty()).count(), 1); + assert_eq!(jar.delta().filter(|c| c.path() == Some("/")).count(), 1); + } +} |