Merge pull request #487 from pyfisch/headertests2

Bugfixes, tests and documentation for headers
This commit is contained in:
Sean McArthur
2015-04-28 12:38:07 -07:00
33 changed files with 233 additions and 171 deletions

View File

@@ -23,6 +23,10 @@ header! {
#[doc="accept-ext = OWS \";\" OWS token [ \"=\" ( token / quoted-string ) ]"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `audio/*; q=0.2, audio/basic` (`*` value won't parse correctly)"]
#[doc="* `text/plain; q=0.5, text/html, text/x-dvi; q=0.8, text/x-c`"]
#[doc=""]
#[doc="# Notes"]
#[doc="* Using always Mime types to represent `media-range` differs from the ABNF."]
#[doc="* **FIXME**: `accept-ext` is not supported."]

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@@ -15,9 +15,13 @@ header! {
#[doc="```plain"]
#[doc="Accept-Charset = 1#( ( charset / \"*\" ) [ weight ] )"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `iso-8859-5, unicode-1-1;q=0.8`"]
(AcceptCharset, "Accept-Charset") => (QualityItem<Charset>)+
test_accept_charset {
/// Testcase from RFC
test_header!(test1, vec![b"iso-8859-5, unicode-1-1;q=0.8"]);
}
}

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@@ -15,33 +15,23 @@ header! {
#[doc="Accept-Encoding = #( codings [ weight ] )"]
#[doc="codings = content-coding / \"identity\" / \"*\""]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `compress, gzip`"]
#[doc="* ``"]
#[doc="* `*`"]
#[doc="* `compress;q=0.5, gzip;q=1`"]
#[doc="* `gzip;q=1.0, identity; q=0.5, *;q=0`"]
(AcceptEncoding, "Accept-Encoding") => (QualityItem<Encoding>)*
test_accept_encoding {
// From the RFC
test_header!(test1, vec![b"compress, gzip"]);
test_header!(test2, vec![b""]);
test_header!(test2, vec![b""], Some(AcceptEncoding(vec![])));
test_header!(test3, vec![b"*"]);
// Note: Removed quality 1 from gzip
test_header!(test4, vec![b"compress;q=0.5, gzip"]);
// FIXME: Formatting of 0 as quality value
// test_header!(test5, vec![b"gzip;q=1.0, identity; q=0.5, *;q=0"]);
}
}
#[cfg(test)]
mod tests {
use header::{Encoding, Header, qitem, Quality, QualityItem};
use super::*;
#[test]
fn test_parse_header() {
let a: AcceptEncoding = Header::parse_header([b"gzip;q=1.0, identity; q=0.5".to_vec()].as_ref()).unwrap();
let b = AcceptEncoding(vec![
qitem(Encoding::Gzip),
QualityItem::new(Encoding::Identity, Quality(500)),
]);
assert_eq!(a, b);
// Note: Removed quality 1 from gzip
test_header!(test5, vec![b"gzip, identity; q=0.5, *;q=0"]);
}
}

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@@ -13,49 +13,23 @@ header! {
#[doc="Accept-Language = 1#( language-range [ weight ] )"]
#[doc="language-range = <language-range, see [RFC4647], Section 2.1>"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `da, en-gb;q=0.8, en;q=0.7`"]
#[doc="* `en-us;q=1.0, en;q=0.5, fr`"]
(AcceptLanguage, "Accept-Language") => (QualityItem<Language>)+
test_accept_language {
// From the RFC
test_header!(test1, vec![b"da, en-gb;q=0.8, en;q=0.7"]);
}
}
#[cfg(test)]
mod tests {
use header::{Header, Language, qitem, Quality, QualityItem};
use super::*;
#[test]
fn test_parse_header() {
let a: AcceptLanguage = Header::parse_header(
[b"en-us;q=1.0, en;q=0.5, fr".to_vec()].as_ref()).unwrap();
let b = AcceptLanguage(vec![
qitem(Language{primary: "en".to_string(), sub: Some("us".to_string())}),
QualityItem::new(Language{primary: "en".to_string(), sub: None},
Quality(500)),
qitem(Language{primary: "fr".to_string(), sub: None}),
]);
assert_eq!(format!("{}", a), format!("{}", b));
assert_eq!(a, b);
}
#[test]
fn test_display() {
assert_eq!("en".to_string(),
format!("{}", Language{primary: "en".to_string(),
sub: None}));
assert_eq!("en-us".to_string(),
format!("{}", Language{primary: "en".to_string(),
sub: Some("us".to_string())}));
}
#[test]
fn test_from_str() {
assert_eq!(Language { primary: "en".to_string(), sub: None },
"en".parse().unwrap());
assert_eq!(Language { primary: "en".to_string(),
sub: Some("us".to_string()) },
"en-us".parse().unwrap());
// Own test
test_header!(
test2, vec![b"en-us, en; q=0.5, fr"],
Some(AcceptLanguage(vec![
qitem(Language {primary: "en".to_string(), sub: Some("us".to_string())}),
QualityItem::new(Language{primary: "en".to_string(), sub: None}, Quality(500)),
qitem(Language {primary: "fr".to_string(), sub: None}),
])));
}
}

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@@ -7,7 +7,17 @@ header! {
#[doc="The `Access-Control-Allow-Headers` header indicates, as part of the"]
#[doc="response to a preflight request, which header field names can be used"]
#[doc="during the actual request."]
#[doc=""]
#[doc="# ABNF"]
#[doc="```plain"]
#[doc="Access-Control-Allow-Headers: \"Access-Control-Allow-Headers\" \":\" #field-name"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `accept-language, date`"]
(AccessControlAllowHeaders, "Access-Control-Allow-Headers") => (UniCase<String>)*
test_access_control_allow_headers {}
test_access_control_allow_headers {
test_header!(test1, vec![b"accept-language, date"]);
}
}

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@@ -7,7 +7,17 @@ header! {
#[doc="The `Access-Control-Allow-Methods` header indicates, as part of the"]
#[doc="response to a preflight request, which methods can be used during the"]
#[doc="actual request."]
#[doc=""]
#[doc="# ABNF"]
#[doc="```plain"]
#[doc="Access-Control-Allow-Methods: \"Access-Control-Allow-Methods\" \":\" #Method"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `PUT, DELETE, XMODIFY`"]
(AccessControlAllowMethods, "Access-Control-Allow-Methods") => (Method)*
test_access_control_allow_methods {}
test_access_control_allow_methods {
test_header!(test1, vec![b"PUT, DELETE, XMODIFY"]);
}
}

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@@ -1,17 +1,22 @@
use std::fmt::{self};
use std::fmt;
use std::str;
use url::Url;
use header;
/// The `Access-Control-Allow-Origin` response header,
/// part of [CORS](http://www.w3.org/TR/cors/).
/// part of [CORS](www.w3.org/TR/cors/#access-control-allow-origin-response-header)
///
/// > The `Access-Control-Allow-Origin` header indicates whether a resource
/// > can be shared based by returning the value of the Origin request header,
/// > "*", or "null" in the response.
/// The `Access-Control-Allow-Origin` header indicates whether a resource
/// can be shared based by returning the value of the Origin request header,
/// "*", or "null" in the response.
///
/// Spec: www.w3.org/TR/cors/#access-control-allow-origin-response-header
/// # ABNF
/// ```plain
/// Access-Control-Allow-Origin = "Access-Control-Allow-Origin" ":" origin-list-or-null | "*"
/// ```
// FIXME: The documentation says differently (missing "null" value, "*" not used in practice,
// orgin list no list but single value)
#[derive(Clone, PartialEq, Debug)]
pub enum AccessControlAllowOrigin {
/// Allow all origins

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@@ -4,7 +4,17 @@ header! {
#[doc=""]
#[doc="The `Access-Control-Max-Age` header indicates how long the results of a"]
#[doc="preflight request can be cached in a preflight result cache."]
#[doc=""]
#[doc="# ABNF"]
#[doc="```plain"]
#[doc="Access-Control-Max-Age = \"Access-Control-Max-Age\" \":\" delta-seconds"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `531`"]
(AccessControlMaxAge, "Access-Control-Max-Age") => [u32]
test_access_control_max_age {}
test_access_control_max_age {
test_header!(test1, vec![b"531"]);
}
}

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@@ -7,7 +7,17 @@ header! {
#[doc="The `Access-Control-Request-Headers` header indicates which headers will"]
#[doc="be used in the actual request as part of the preflight request."]
#[doc="during the actual request."]
#[doc=""]
#[doc="# ABNF"]
#[doc="```plain"]
#[doc="Access-Control-Allow-Headers: \"Access-Control-Allow-Headers\" \":\" #field-name"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `accept-language, date`"]
(AccessControlRequestHeaders, "Access-Control-Request-Headers") => (UniCase<String>)*
test_access_control_request_headers {}
test_access_control_request_headers {
test_header!(test1, vec![b"accept-language, date"]);
}
}

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@@ -6,7 +6,16 @@ header! {
#[doc=""]
#[doc="The `Access-Control-Request-Method` header indicates which method will be"]
#[doc="used in the actual request as part of the preflight request."]
#[doc="# ABNF"]
#[doc="```plain"]
#[doc="Access-Control-Request-Method: \"Access-Control-Request-Method\" \":\" Method"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `GET`"]
(AccessControlRequestMethod, "Access-Control-Request-Method") => [Method]
test_access_control_request_method {}
test_access_control_request_method {
test_header!(test1, vec![b"GET"]);
}
}

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@@ -12,6 +12,11 @@ header! {
#[doc="```plain"]
#[doc="Allow = #method"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `GET, HEAD, PUT`"]
#[doc="* `OPTIONS, GET, PUT, POST, DELETE, HEAD, TRACE, CONNECT, PATCH, fOObAr`"]
#[doc="* ``"]
(Allow, "Allow") => (Method)*
test_allow {
@@ -35,11 +40,10 @@ header! {
Method::Connect,
Method::Patch,
Method::Extension("fOObAr".to_string())])));
// FIXME: Formatting fails
// test_header!(
// test3,
// vec![b""],
// Some(HeaderField(Vec::<Method>::new())));
test_header!(
test3,
vec![b""],
Some(HeaderField(Vec::<Method>::new())));
}
}

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@@ -16,9 +16,15 @@ header! {
#[doc="```plain"]
#[doc="Content-Encoding = 1#content-coding"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `gzip`"]
(ContentEncoding, "Content-Encoding") => (Encoding)+
test_content_encoding {}
test_content_encoding {
/// Testcase from the RFC
test_header!(test1, vec![b"gzip"], Some(ContentEncoding(vec![Encoding::Gzip])));
}
}
bench_header!(single, ContentEncoding, { vec![b"gzip".to_vec()] });

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@@ -13,6 +13,10 @@ header! {
#[doc="```plain"]
#[doc="Content-Language = 1#language-tag"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `da`"]
#[doc="* `mi, en`"]
(ContentLanguage, "Content-Language") => (QualityItem<Language>)+
test_content_language {

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@@ -15,6 +15,9 @@ header! {
#[doc="```plain"]
#[doc="Content-Length = 1*DIGIT"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `3495`"]
(ContentLength, "Content-Length") => [u64]
test_content_length {

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@@ -16,6 +16,9 @@ header! {
#[doc="```plain"]
#[doc="Content-Type = media-type"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `text/html; charset=ISO-8859-4`"]
(ContentType, "Content-Type") => [Mime]
test_content_type {

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@@ -10,6 +10,9 @@ header! {
#[doc="```plain"]
#[doc="Date = HTTP-date"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `Tue, 15 Nov 1994 08:12:31 GMT`"]
(Date, "Date") => [HttpDate]
test_date {

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@@ -17,63 +17,30 @@ header! {
#[doc="```plain"]
#[doc="ETag = entity-tag"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `\"xyzzy\"`"]
#[doc="* `W/\"xyzzy\"`"]
#[doc="* `\"\"`"]
(ETag, "ETag") => [EntityTag]
test_etag {
test_header!(test1, vec![b"\"xyzzy\""], Some(HeaderField(EntityTag::new(false, "xyzzy".to_string()))));
test_header!(test2, vec![b"W/\"xyzzy\""], Some(HeaderField(EntityTag::new(true, "xyzzy".to_string()))));
test_header!(test3, vec![b"\"\""], Some(HeaderField(EntityTag::new(false, "".to_string()))));
}
}
#[cfg(test)]
mod tests {
use super::ETag;
use header::{Header,EntityTag};
#[test]
fn test_etag_successes() {
// Expected successes
let mut etag: Option<ETag>;
etag = Header::parse_header([b"\"foobar\"".to_vec()].as_ref());
assert_eq!(etag, Some(ETag(EntityTag::new(false, "foobar".to_string()))));
etag = Header::parse_header([b"\"\"".to_vec()].as_ref());
assert_eq!(etag, Some(ETag(EntityTag::new(false, "".to_string()))));
etag = Header::parse_header([b"W/\"weak-etag\"".to_vec()].as_ref());
assert_eq!(etag, Some(ETag(EntityTag::new(true, "weak-etag".to_string()))));
etag = Header::parse_header([b"W/\"\x65\x62\"".to_vec()].as_ref());
assert_eq!(etag, Some(ETag(EntityTag::new(true, "\u{0065}\u{0062}".to_string()))));
etag = Header::parse_header([b"W/\"\"".to_vec()].as_ref());
assert_eq!(etag, Some(ETag(EntityTag::new(true, "".to_string()))));
}
#[test]
fn test_etag_failures() {
// Expected failures
let mut etag: Option<ETag>;
etag = Header::parse_header([b"no-dquotes".to_vec()].as_ref());
assert_eq!(etag, None);
etag = Header::parse_header([b"w/\"the-first-w-is-case-sensitive\"".to_vec()].as_ref());
assert_eq!(etag, None);
etag = Header::parse_header([b"".to_vec()].as_ref());
assert_eq!(etag, None);
etag = Header::parse_header([b"\"unmatched-dquotes1".to_vec()].as_ref());
assert_eq!(etag, None);
etag = Header::parse_header([b"unmatched-dquotes2\"".to_vec()].as_ref());
assert_eq!(etag, None);
etag = Header::parse_header([b"matched-\"dquotes\"".to_vec()].as_ref());
assert_eq!(etag, None);
// From the RFC
test_header!(test1, vec![b"\"xyzzy\""], Some(ETag(EntityTag::new(false, "xyzzy".to_string()))));
test_header!(test2, vec![b"W/\"xyzzy\""], Some(ETag(EntityTag::new(true, "xyzzy".to_string()))));
test_header!(test3, vec![b"\"\""], Some(ETag(EntityTag::new(false, "".to_string()))));
// Own tests
test_header!(test4, vec![b"\"foobar\""], Some(ETag(EntityTag::new(false, "foobar".to_string()))));
test_header!(test5, vec![b"\"\""], Some(ETag(EntityTag::new(false, "".to_string()))));
test_header!(test6, vec![b"W/\"weak-etag\""], Some(ETag(EntityTag::new(true, "weak-etag".to_string()))));
test_header!(test7, vec![b"W/\"\x65\x62\""], Some(ETag(EntityTag::new(true, "\u{0065}\u{0062}".to_string()))));
test_header!(test8, vec![b"W/\"\""], Some(ETag(EntityTag::new(true, "".to_string()))));
test_header!(test9, vec![b"no-dquotes"], None::<ETag>);
test_header!(test10, vec![b"w/\"the-first-w-is-case-sensitive\""], None::<ETag>);
test_header!(test11, vec![b""], None::<ETag>);
test_header!(test12, vec![b"\"unmatched-dquotes1"], None::<ETag>);
test_header!(test13, vec![b"unmatched-dquotes2\""], None::<ETag>);
test_header!(test14, vec![b"matched-\"dquotes\""], None::<ETag>);
}
}

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@@ -14,6 +14,9 @@ header! {
#[doc="```plain"]
#[doc="Expires = HTTP-date"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `Thu, 01 Dec 1994 16:00:00 GMT`"]
(Expires, "Expires") => [HttpDate]
test_expires {

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@@ -20,6 +20,10 @@ header! {
#[doc="```plain"]
#[doc="If-Match = \"*\" / 1#entity-tag"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `\"xyzzy\"`"]
#[doc="* \"xyzzy\", \"r2d2xxxx\", \"c3piozzzz\""]
(IfMatch, "If-Match") => {Any / (EntityTag)+}
test_if_match {

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@@ -14,6 +14,9 @@ header! {
#[doc="```plain"]
#[doc="If-Unmodified-Since = HTTP-date"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `Sat, 29 Oct 1994 19:43:31 GMT`"]
(IfModifiedSince, "If-Modified-Since") => [HttpDate]
test_if_modified_since {

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@@ -19,6 +19,13 @@ header! {
#[doc="```plain"]
#[doc="If-None-Match = \"*\" / 1#entity-tag"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `\"xyzzy\"`"]
#[doc="* `W/\"xyzzy\"`"]
#[doc="* `\"xyzzy\", \"r2d2xxxx\", \"c3piozzzz\"`"]
#[doc="* `W/\"xyzzy\", W/\"r2d2xxxx\", W/\"c3piozzzz\"`"]
#[doc="* `*`"]
(IfNoneMatch, "If-None-Match") => {Any / (EntityTag)+}
test_if_none_match {

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@@ -14,6 +14,9 @@ header! {
#[doc="```plain"]
#[doc="If-Unmodified-Since = HTTP-date"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `Sat, 29 Oct 1994 19:43:31 GMT`"]
(IfUnmodifiedSince, "If-Unmodified-Since") => [HttpDate]
test_if_unmodified_since {

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@@ -12,6 +12,9 @@ header! {
#[doc="```plain"]
#[doc="Expires = HTTP-date"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `Sat, 29 Oct 1994 19:43:31 GMT`"]
(LastModified, "Last-Modified") => [HttpDate]
test_last_modified {

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@@ -11,6 +11,10 @@ header! {
#[doc="```plain"]
#[doc="Location = URI-reference"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `/People.html#tim`"]
#[doc="* `http://www.example.net/index.html`"]
// TODO: Use URL
(Location, "Location") => [String]

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@@ -118,10 +118,12 @@ macro_rules! test_header {
// Test parsing
assert_eq!(val, $typed);
// Test formatting
if $typed != None {
let res: &str = str::from_utf8($raw[0]).unwrap();
assert_eq!(format!("{}", $typed.unwrap()), res);
}
}
}
}
#[macro_export]

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@@ -12,6 +12,9 @@ header! {
#[doc="```plain"]
#[doc="Referer = absolute-URI / partial-URI"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `http://www.example.org/hypertext/Overview.html`"]
// TODO: Use URL
(Referer, "Referer") => [String]

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@@ -13,6 +13,9 @@ header! {
#[doc="```plain"]
#[doc="Server = product *( RWS ( product / comment ) )"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `CERN/3.0 libwww/2.17`"]
// TODO: Maybe parse as defined in the spec?
(Server, "Server") => [String]

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@@ -13,6 +13,9 @@ header! {
#[doc="```plain"]
#[doc="Transfer-Encoding = 1#transfer-coding"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `gzip, chunked`"]
(TransferEncoding, "Transfer-Encoding") => (Encoding)+
transfer_encoding {

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@@ -25,6 +25,9 @@ header! {
#[doc="protocol-name = token"]
#[doc="protocol-version = token"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `HTTP/2.0, SHTTP/1.3, IRC/6.9, RTA/x11`"]
(Upgrade, "Upgrade") => (Protocol)+
test_upgrade {
@@ -41,6 +44,7 @@ header! {
}
/// Protocol values that can appear in the Upgrade header.
// TODO: Parse version part seperately
#[derive(Clone, PartialEq, Debug)]
pub enum Protocol {
/// The websocket protocol.

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@@ -16,19 +16,19 @@ header! {
#[doc="product = token [\"/\" product-version]"]
#[doc="product-version = token"]
#[doc="```"]
// TODO: Maybe write parsing according to the spec? (Split the String)
#[doc=""]
#[doc="# Example values"]
#[doc="* `CERN-LineMode/2.15 libwww/2.17b3`"]
#[doc="* `Bunnies`"]
#[doc=""]
#[doc="# Notes"]
#[doc="* The parser does not split the value"]
(UserAgent, "User-Agent") => [String]
test_user_agent {
// Testcase from RFC
test_header!(test1, vec![b"CERN-LineMode/2.15 libwww/2.17b3"]);
// Own testcase
test_header!(test2, vec![b"Bunnies"], Some(UserAgent("Bunnies".to_string())));
}
}
#[test] fn test_format() {
use std::borrow::ToOwned;
use header::Headers;
let mut head = Headers::new();
head.set(UserAgent("Bunnies".to_owned()));
assert!(head.to_string() == "User-Agent: Bunnies\r\n".to_owned());
}

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@@ -14,20 +14,16 @@ header! {
#[doc="```plain"]
#[doc="Vary = \"*\" / 1#field-name"]
#[doc="```"]
#[doc=""]
#[doc="# Example values"]
#[doc="* `accept-encoding, accept-language`"]
(Vary, "Vary") => {Any / (UniCase<String>)+}
test_vary {
test_header!(test1, vec![b"accept-encoding, accept-language"]);
}
}
#[cfg(test)]
mod tests {
use super::Vary;
use header::Header;
#[test]
fn test_vary() {
fn test2() {
let mut vary: Option<Vary>;
vary = Header::parse_header([b"*".to_vec()].as_ref());
@@ -38,4 +34,5 @@ mod tests {
"cookIE".parse().unwrap(),
"AlLOw".parse().unwrap(),])));
}
}
}

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@@ -31,7 +31,10 @@ pub fn from_one_comma_delimited<T: str::FromStr>(raw: &[u8]) -> Option<Vec<T>> {
Ok(s) => {
Some(s
.split(',')
.map(|x| x.trim())
.filter_map(|x| match x.trim() {
"" => None,
y => Some(y)
})
.filter_map(|x| x.parse().ok())
.collect())
}
@@ -40,13 +43,12 @@ pub fn from_one_comma_delimited<T: str::FromStr>(raw: &[u8]) -> Option<Vec<T>> {
}
/// Format an array into a comma-delimited string.
pub fn fmt_comma_delimited<T: fmt::Display>(fmt: &mut fmt::Formatter, parts: &[T]) -> fmt::Result {
let last = parts.len() - 1;
pub fn fmt_comma_delimited<T: fmt::Display>(f: &mut fmt::Formatter, parts: &[T]) -> fmt::Result {
for (i, part) in parts.iter().enumerate() {
try!(write!(fmt, "{}", part));
if i < last {
try!(write!(fmt, ", "));
if i > 0 {
try!(write!(f, ", "));
}
try!(write!(f, "{}", part));
}
Ok(())
}

View File

@@ -24,10 +24,10 @@ pub struct Quality(pub u16);
impl fmt::Display for Quality {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
if self.0 == 1000 {
write!(f, "")
} else {
write!(f, "; q=0.{}", format!("{:03}", self.0).trim_right_matches('0'))
match self.0 {
1000 => Ok(()),
0 => f.write_str("; q=0"),
x => write!(f, "; q=0.{}", format!("{:03}", x).trim_right_matches('0'))
}
}
}
@@ -196,6 +196,11 @@ mod tests {
assert_eq!(q(0.5), Quality(500));
}
#[test]
fn test_quality2() {
assert_eq!(format!("{}", q(0.0)), "; q=0");
}
#[test]
#[should_panic]
fn test_quality_invalid() {