added pretty_assertions

This will allow for better troubleshooting of failing test, because you 
don't have to search for the difference (between left and right). This 
is especially helpful for larger assertions.

Cargo.toml

@@ -25,3 +25,4 @@ hex = "0.4.0"
 
 [dev-dependencies]
 clap = "2.33.0"
+pretty_assertions = "0.6.1"

src/attribute.rs

@@ -96,6 +96,7 @@ fn split(value: &str, terminator: char) -> Vec<String> {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_parser() {

src/master_playlist.rs

@@ -445,6 +445,7 @@ impl FromStr for MasterPlaylist {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_parser() {

src/media_playlist.rs

@@ -379,6 +379,7 @@ impl FromStr for MediaPlaylist {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn too_large_segment_duration_test() {

src/media_segment.rs

@@ -192,6 +192,7 @@ impl Encrypted for MediaSegment {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
     use std::time::Duration;
 
     #[test]

src/tags/basic/m3u.rs

@@ -62,6 +62,7 @@ impl FromStr for ExtM3u {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/basic/version.rs

@@ -104,6 +104,7 @@ impl FromStr for ExtXVersion {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/master_playlist/i_frame_stream_inf.rs

@@ -190,6 +190,7 @@ impl DerefMut for ExtXIFrameStreamInf {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_builder() {

src/tags/master_playlist/media.rs

@@ -740,6 +740,7 @@ impl FromStr for ExtXMedia {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/master_playlist/session_data.rs

@@ -324,6 +324,7 @@ impl FromStr for ExtXSessionData {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/master_playlist/session_key.rs

@@ -86,6 +86,7 @@ impl DerefMut for ExtXSessionKey {
 mod test {
     use super::*;
     use crate::types::{EncryptionMethod, KeyFormat};
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/master_playlist/stream_inf.rs

@@ -376,6 +376,7 @@ impl DerefMut for ExtXStreamInf {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_parser() {

src/tags/media_playlist/discontinuity_sequence.rs

@@ -84,6 +84,7 @@ impl FromStr for ExtXDiscontinuitySequence {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_playlist/end_list.rs

@@ -45,6 +45,7 @@ impl FromStr for ExtXEndList {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_playlist/i_frames_only.rs

@@ -47,6 +47,7 @@ impl FromStr for ExtXIFramesOnly {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_playlist/media_sequence.rs

@@ -81,6 +81,7 @@ impl FromStr for ExtXMediaSequence {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_playlist/playlist_type.rs

@@ -61,6 +61,7 @@ impl FromStr for ExtXPlaylistType {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_parser() {

src/tags/media_playlist/target_duration.rs

@@ -73,6 +73,7 @@ impl FromStr for ExtXTargetDuration {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_segment/byte_range.rs

@@ -104,6 +104,7 @@ impl FromStr for ExtXByteRange {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_segment/date_range.rs

@@ -823,6 +823,7 @@ impl fmt::Display for ExtXDateRange {
 mod test {
     use super::*;
     use chrono::offset::TimeZone;
+    use pretty_assertions::assert_eq;
 
     const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
 

src/tags/media_segment/discontinuity.rs

@@ -44,6 +44,7 @@ impl FromStr for ExtXDiscontinuity {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_segment/inf.rs

@@ -178,6 +178,7 @@ impl From<Duration> for ExtInf {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_segment/key.rs

@@ -113,6 +113,7 @@ impl DerefMut for ExtXKey {
 mod test {
     use super::*;
     use crate::types::{EncryptionMethod, KeyFormat};
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_segment/map.rs

@@ -194,6 +194,7 @@ impl FromStr for ExtXMap {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/media_segment/program_date_time.rs

@@ -133,6 +133,7 @@ impl DerefMut for ExtXProgramDateTime {
 mod test {
     use super::*;
     use chrono::{Datelike, TimeZone};
+    use pretty_assertions::assert_eq;
 
     const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
 

src/tags/shared/independent_segments.rs

@@ -35,6 +35,7 @@ impl FromStr for ExtXIndependentSegments {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/tags/shared/start.rs

@@ -157,6 +157,7 @@ impl FromStr for ExtXStart {
 #[cfg(test)]
 mod test {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/byte_range.rs

@@ -114,6 +114,7 @@ impl FromStr for ByteRange {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/channels.rs

@@ -103,6 +103,7 @@ impl fmt::Display for Channels {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/closed_captions.rs

@@ -40,6 +40,7 @@ impl FromStr for ClosedCaptions {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/decimal_floating_point.rs

@@ -69,6 +69,7 @@ impl From<f32> for DecimalFloatingPoint {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     macro_rules! test_from {
         ( $($input:expr),* ) => {

src/types/decimal_resolution.rs

@@ -68,6 +68,7 @@ impl FromStr for DecimalResolution {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/decryption_key.rs

@@ -353,6 +353,7 @@ impl fmt::Display for DecryptionKey {
 mod test {
     use super::*;
     use crate::types::EncryptionMethod;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_builder() {

src/types/encryption_method.rs

@@ -50,6 +50,7 @@ pub enum EncryptionMethod {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/hdcp_level.rs

@@ -17,6 +17,7 @@ pub enum HdcpLevel {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/in_stream_id.rs

@@ -81,6 +81,7 @@ pub enum InStreamId {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     macro_rules! gen_tests {
         ( $($string:expr => $enum:expr),* ) => {

src/types/initialization_vector.rs

@@ -66,6 +66,7 @@ impl FromStr for InitializationVector {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/key_format.rs

@@ -39,6 +39,7 @@ impl RequiredVersion for KeyFormat {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/key_format_versions.rs

@@ -97,6 +97,7 @@ impl<T: Into<Vec<usize>>> From<T> for KeyFormatVersions {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/media_type.rs

@@ -14,6 +14,7 @@ pub enum MediaType {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_parser() {

src/types/protocol_version.rs

@@ -73,6 +73,7 @@ impl Default for ProtocolVersion {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/signed_decimal_floating_point.rs

@@ -36,6 +36,7 @@ impl Deref for SignedDecimalFloatingPoint {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     macro_rules! test_from {
         ( $( $input:expr => $output:expr ),* ) => {

src/types/stream_inf.rs

@@ -300,6 +300,7 @@ impl FromStr for StreamInf {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/types/value.rs

@@ -67,6 +67,7 @@ impl From<&str> for Value {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_display() {

src/utils.rs

@@ -83,6 +83,7 @@ where
 #[cfg(test)]
 mod tests {
     use super::*;
+    use pretty_assertions::assert_eq;
 
     #[test]
     fn test_parse_yes_or_no() {

tests/master_playlist.rs

@@ -1,6 +1,8 @@
 use hls_m3u8::tags::{ExtXIFrameStreamInf, ExtXStreamInf};
 use hls_m3u8::MasterPlaylist;
 
+use pretty_assertions::assert_eq;
+
 #[test]
 fn test_master_playlist() {
     let master_playlist = "#EXTM3U\n\