Eliminate unnecessary use of format! macro.
- Use Display::to_string in tests for conciseness. - panic! directly takes format!-like arguments.
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2ffa449d9d
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437b1a1750
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@ -44,7 +44,7 @@ use crate::tiff::{Field, ProvideUnit};
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/// let reader = exif::Reader::new(
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/// &mut std::io::BufReader::new(&file)).unwrap();
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/// let xres = reader.get_field(exif::Tag::XResolution, false).unwrap();
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/// assert_eq!(format!("{}", xres.display_value().with_unit(&reader)),
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/// assert_eq!(xres.display_value().with_unit(&reader).to_string(),
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/// "72 pixels per inch");
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/// ```
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//
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@ -211,23 +211,23 @@ mod tests {
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let reader = Reader::new(&mut BufReader::new(&file)).unwrap();
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// No unit.
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let exifver = reader.get_field(Tag::ExifVersion, false).unwrap();
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assert_eq!(format!("{}", exifver.display_value().with_unit(&reader)),
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assert_eq!(exifver.display_value().with_unit(&reader).to_string(),
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"2.31");
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// Fixed string.
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let width = reader.get_field(Tag::ImageWidth, false).unwrap();
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assert_eq!(format!("{}", width.display_value().with_unit(&reader)),
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assert_eq!(width.display_value().with_unit(&reader).to_string(),
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"15 pixels");
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// Unit tag (with a non-default value).
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let gpsalt = reader.get_field(Tag::GPSAltitude, false).unwrap();
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assert_eq!(format!("{}", gpsalt.display_value().with_unit(&reader)),
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assert_eq!(gpsalt.display_value().with_unit(&reader).to_string(),
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"0.5 meters below sea level");
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// Unit tag is missing but the default is specified.
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let xres = reader.get_field(Tag::XResolution, false).unwrap();
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assert_eq!(format!("{}", xres.display_value().with_unit(&reader)),
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assert_eq!(xres.display_value().with_unit(&reader).to_string(),
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"72 pixels per inch");
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// Unit tag is missing and the default is not specified.
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let gpslat = reader.get_field(Tag::GPSLatitude, false).unwrap();
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assert_eq!(format!("{}", gpslat.display_value().with_unit(&reader)),
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assert_eq!(gpslat.display_value().with_unit(&reader).to_string(),
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"10 deg 0 min 0 sec [GPSLatitudeRef missing]");
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}
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}
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44
src/tiff.rs
44
src/tiff.rs
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@ -168,7 +168,7 @@ pub fn is_tiff(buf: &[u8]) -> bool {
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/// use exif::DateTime;
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/// let dt = DateTime::from_ascii(b"2016:05:04 03:02:01").unwrap();
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/// assert_eq!(dt.year, 2016);
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/// assert_eq!(format!("{}", dt), "2016-05-04 03:02:01");
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/// assert_eq!(dt.to_string(), "2016-05-04 03:02:01");
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/// ```
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#[derive(Debug)]
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pub struct DateTime {
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@ -290,15 +290,15 @@ impl<'a> Field<'a> {
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/// thumbnail: false,
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/// value: Value::Short(vec![3]),
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/// };
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/// assert_eq!(format!("{}", xres.display_value()), "72");
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/// assert_eq!(format!("{}", cm.display_value()), "cm");
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/// assert_eq!(xres.display_value().to_string(), "72");
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/// assert_eq!(cm.display_value().to_string(), "cm");
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/// // The unit of XResolution is indicated by ResolutionUnit.
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/// assert_eq!(format!("{}", xres.display_value().with_unit(&cm)),
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/// assert_eq!(xres.display_value().with_unit(&cm).to_string(),
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/// "72 pixels per cm");
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/// // If ResolutionUnit is not given, the default value is used.
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/// assert_eq!(format!("{}", xres.display_value().with_unit(())),
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/// assert_eq!(xres.display_value().with_unit(()).to_string(),
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/// "72 pixels per inch");
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/// assert_eq!(format!("{}", xres.display_value().with_unit(&xres)),
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/// assert_eq!(xres.display_value().with_unit(&xres).to_string(),
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/// "72 pixels per inch");
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///
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/// let flen = Field {
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@ -308,8 +308,8 @@ impl<'a> Field<'a> {
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/// };
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/// // The unit of the focal length is always mm, so the argument
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/// // has nothing to do with the result.
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/// assert_eq!(format!("{}", flen.display_value().with_unit(())), "24 mm");
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/// assert_eq!(format!("{}", flen.display_value().with_unit(&cm)), "24 mm");
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/// assert_eq!(flen.display_value().with_unit(()).to_string(), "24 mm");
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/// assert_eq!(flen.display_value().with_unit(&cm).to_string(), "24 mm");
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/// ```
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#[inline]
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pub fn display_value(&self) -> DisplayValue {
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@ -428,7 +428,7 @@ mod tests {
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fn date_time() {
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let mut dt = DateTime::from_ascii(b"2016:05:04 03:02:01").unwrap();
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assert_eq!(dt.year, 2016);
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assert_eq!(format!("{}", dt), "2016-05-04 03:02:01");
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assert_eq!(dt.to_string(), "2016-05-04 03:02:01");
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dt.parse_subsec(b"987").unwrap();
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assert_eq!(dt.nanosecond.unwrap(), 987000000);
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@ -479,11 +479,11 @@ mod tests {
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thumbnail: false,
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value: Value::Undefined(b"0231", 0),
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};
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assert_eq!(format!("{}", exifver.display_value()),
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assert_eq!(exifver.display_value().to_string(),
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"2.31");
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assert_eq!(format!("{}", exifver.display_value().with_unit(())),
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assert_eq!(exifver.display_value().with_unit(()).to_string(),
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"2.31");
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assert_eq!(format!("{}", exifver.display_value().with_unit(&cm)),
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assert_eq!(exifver.display_value().with_unit(&cm).to_string(),
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"2.31");
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// Fixed string.
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let width = Field {
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@ -491,11 +491,11 @@ mod tests {
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thumbnail: false,
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value: Value::Short(vec![257]),
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};
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assert_eq!(format!("{}", width.display_value()),
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assert_eq!(width.display_value().to_string(),
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"257");
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assert_eq!(format!("{}", width.display_value().with_unit(())),
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assert_eq!(width.display_value().with_unit(()).to_string(),
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"257 pixels");
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assert_eq!(format!("{}", width.display_value().with_unit(&cm)),
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assert_eq!(width.display_value().with_unit(&cm).to_string(),
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"257 pixels");
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// Unit tag (with a non-default value).
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// Unit tag is missing but the default is specified.
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@ -504,13 +504,13 @@ mod tests {
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thumbnail: false,
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value: Value::Rational(vec![Rational { num: 300, denom: 1 }]),
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};
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assert_eq!(format!("{}", xres.display_value()),
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assert_eq!(xres.display_value().to_string(),
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"300");
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assert_eq!(format!("{}", xres.display_value().with_unit(())),
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assert_eq!(xres.display_value().with_unit(()).to_string(),
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"300 pixels per inch");
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assert_eq!(format!("{}", xres.display_value().with_unit(&cm)),
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assert_eq!(xres.display_value().with_unit(&cm).to_string(),
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"300 pixels per cm");
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assert_eq!(format!("{}", xres.display_value().with_unit(&cm_tn)),
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assert_eq!(xres.display_value().with_unit(&cm_tn).to_string(),
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"300 pixels per inch");
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// Unit tag is missing and the default is not specified.
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let gpslat = Field {
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@ -522,11 +522,11 @@ mod tests {
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Rational { num: 1, denom: 10 },
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]),
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};
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assert_eq!(format!("{}", gpslat.display_value()),
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assert_eq!(gpslat.display_value().to_string(),
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"10 deg 0 min 0.1 sec");
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assert_eq!(format!("{}", gpslat.display_value().with_unit(())),
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assert_eq!(gpslat.display_value().with_unit(()).to_string(),
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"10 deg 0 min 0.1 sec [GPSLatitudeRef missing]");
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assert_eq!(format!("{}", gpslat.display_value().with_unit(&cm)),
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assert_eq!(gpslat.display_value().with_unit(&cm).to_string(),
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"10 deg 0 min 0.1 sec [GPSLatitudeRef missing]");
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}
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}
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@ -84,11 +84,9 @@ impl<'a> Value<'a> {
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/// ```
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/// use exif::{Value, Tag};
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/// let val = Value::Undefined(b"0231", 0);
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/// assert_eq!(format!("{}", val.display_as(Tag::ExifVersion)),
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/// "2.31");
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/// assert_eq!(val.display_as(Tag::ExifVersion).to_string(), "2.31");
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/// let val = Value::Short(vec![2]);
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/// assert_eq!(format!("{}", val.display_as(Tag::ResolutionUnit)),
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/// "inch");
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/// assert_eq!(val.display_as(Tag::ResolutionUnit).to_string(), "inch");
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/// ```
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#[inline]
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pub fn display_as(&self, tag: crate::tag::Tag) -> Display {
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@ -172,7 +172,7 @@ fn compare_field_value(value1: &Value, value2: &Value) {
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assert_eq!(v1, v2),
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(&Value::Double(ref v1), &Value::Double(ref v2)) =>
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assert_eq!(v1, v2),
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_ => panic!(format!("{:?} != {:?}", value1, value2)),
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_ => panic!("{:?} != {:?}", value1, value2),
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}
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}
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