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formatting.rs
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formatting.rs
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use std::io::{self, ErrorKind};
use time::format_description::well_known::{Rfc2822, Rfc3339};
use time::format_description::{self, FormatItem, OwnedFormatItem};
use time::macros::{date, datetime, format_description as fd, offset, time};
use time::{OffsetDateTime, Time};
#[test]
fn rfc_2822() -> time::Result<()> {
assert_eq!(
datetime!(2021-01-02 03:04:05 UTC).format(&Rfc2822)?,
"Sat, 02 Jan 2021 03:04:05 +0000"
);
assert_eq!(
datetime!(2021-01-02 03:04:05 +06:07).format(&Rfc2822)?,
"Sat, 02 Jan 2021 03:04:05 +0607"
);
assert_eq!(
datetime!(2021-01-02 03:04:05 -06:07).format(&Rfc2822)?,
"Sat, 02 Jan 2021 03:04:05 -0607"
);
assert!(matches!(
datetime!(1885-01-01 01:01:01 UTC).format(&Rfc2822),
Err(time::error::Format::InvalidComponent("year"))
));
assert!(matches!(
datetime!(2000-01-01 00:00:00 +00:00:01).format(&Rfc2822),
Err(time::error::Format::InvalidComponent("offset_second"))
));
Ok(())
}
#[test]
fn rfc_3339() -> time::Result<()> {
assert_eq!(
datetime!(2021-01-02 03:04:05 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.1 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.1Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.12 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.12Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.123Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_4 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.1234Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_45 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.12345Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_456 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.123456Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_456_7 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.1234567Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_456_78 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.12345678Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_456_789 UTC).format(&Rfc3339)?,
"2021-01-02T03:04:05.123456789Z"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_456_789 -01:02).format(&Rfc3339)?,
"2021-01-02T03:04:05.123456789-01:02"
);
assert_eq!(
datetime!(2021-01-02 03:04:05.123_456_789 +01:02).format(&Rfc3339)?,
"2021-01-02T03:04:05.123456789+01:02"
);
assert!(matches!(
datetime!(-0001-01-01 0:00 UTC).format(&Rfc3339),
Err(time::error::Format::InvalidComponent("year"))
));
assert!(matches!(
datetime!(0000-01-01 0:00 +00:00:01).format(&Rfc3339),
Err(time::error::Format::InvalidComponent("offset_second"))
));
Ok(())
}
#[test]
fn format_time() -> time::Result<()> {
let format_output = [
(fd!("[hour]"), "13"),
(fd!("[hour repr:12]"), "01"),
(fd!("[hour repr:12 padding:none]"), "1"),
(fd!("[hour repr:12 padding:space]"), " 1"),
(fd!("[hour repr:24]"), "13"),
(fd!("[hour repr:24]"), "13"),
(fd!("[hour repr:24 padding:none]"), "13"),
(fd!("[hour repr:24 padding:space]"), "13"),
(fd!("[minute]"), "02"),
(fd!("[minute padding:none]"), "2"),
(fd!("[minute padding:space]"), " 2"),
(fd!("[minute padding:zero]"), "02"),
(fd!("[period]"), "PM"),
(fd!("[period case:upper]"), "PM"),
(fd!("[period case:lower]"), "pm"),
(fd!("[second]"), "03"),
(fd!("[second padding:none]"), "3"),
(fd!("[second padding:space]"), " 3"),
(fd!("[second padding:zero]"), "03"),
(fd!("[subsecond]"), "456789012"),
(fd!("[subsecond digits:1]"), "4"),
(fd!("[subsecond digits:2]"), "45"),
(fd!("[subsecond digits:3]"), "456"),
(fd!("[subsecond digits:4]"), "4567"),
(fd!("[subsecond digits:5]"), "45678"),
(fd!("[subsecond digits:6]"), "456789"),
(fd!("[subsecond digits:7]"), "4567890"),
(fd!("[subsecond digits:8]"), "45678901"),
(fd!("[subsecond digits:9]"), "456789012"),
(fd!("[subsecond digits:1+]"), "456789012"),
];
for &(format_description, output) in &format_output {
assert_eq!(
time!(13:02:03.456_789_012).format(format_description)?,
output
);
assert!(time!(13:02:03.456_789_012)
.format_into(&mut io::sink(), format_description)
.is_ok());
}
assert_eq!(
time!(1:02:03).format(fd!("[hour repr:12][period]"))?,
"01AM"
);
assert_eq!(
Time::MIDNIGHT.format(fd!("[hour repr:12][period case:lower]"))?,
"12am"
);
assert_eq!(Time::MIDNIGHT.format(fd!("[subsecond digits:1+]"))?, "0");
assert_eq!(
time!(0:00:00.01).format(fd!("[subsecond digits:1+]"))?,
"01"
);
assert_eq!(
time!(0:00:00.001).format(fd!("[subsecond digits:1+]"))?,
"001"
);
assert_eq!(
time!(0:00:00.0001).format(fd!("[subsecond digits:1+]"))?,
"0001"
);
assert_eq!(
time!(0:00:00.00001).format(fd!("[subsecond digits:1+]"))?,
"00001"
);
assert_eq!(
time!(0:00:00.000001).format(fd!("[subsecond digits:1+]"))?,
"000001"
);
assert_eq!(
time!(0:00:00.0000001).format(fd!("[subsecond digits:1+]"))?,
"0000001"
);
assert_eq!(
time!(0:00:00.00000001).format(fd!("[subsecond digits:1+]"))?,
"00000001"
);
assert_eq!(
time!(0:00:00.000000001).format(fd!("[subsecond digits:1+]"))?,
"000000001"
);
Ok(())
}
#[test]
fn display_time() {
assert_eq!(time!(0:00).to_string(), "0:00:00.0");
assert_eq!(time!(23:59).to_string(), "23:59:00.0");
assert_eq!(time!(23:59:59).to_string(), "23:59:59.0");
assert_eq!(time!(0:00:01).to_string(), "0:00:01.0");
assert_eq!(time!(0:00:00.1).to_string(), "0:00:00.1");
assert_eq!(time!(0:00:00.01).to_string(), "0:00:00.01");
assert_eq!(time!(0:00:00.001).to_string(), "0:00:00.001");
assert_eq!(time!(0:00:00.000_1).to_string(), "0:00:00.0001");
assert_eq!(time!(0:00:00.000_01).to_string(), "0:00:00.00001");
assert_eq!(time!(0:00:00.000_001).to_string(), "0:00:00.000001");
assert_eq!(time!(0:00:00.000_000_1).to_string(), "0:00:00.0000001");
assert_eq!(time!(0:00:00.000_000_01).to_string(), "0:00:00.00000001");
assert_eq!(time!(0:00:00.000_000_001).to_string(), "0:00:00.000000001");
}
#[test]
fn format_date() -> time::Result<()> {
let format_output = [
(fd!("[day]"), "31"),
(fd!("[month]"), "12"),
(fd!("[month repr:short]"), "Dec"),
(fd!("[month repr:long]"), "December"),
(fd!("[ordinal]"), "365"),
(fd!("[weekday]"), "Tuesday"),
(fd!("[weekday repr:short]"), "Tue"),
(fd!("[weekday repr:sunday]"), "3"),
(fd!("[weekday repr:sunday one_indexed:false]"), "2"),
(fd!("[weekday repr:monday]"), "2"),
(fd!("[weekday repr:monday one_indexed:false]"), "1"),
(fd!("[week_number]"), "01"),
(fd!("[week_number padding:none]"), "1"),
(fd!("[week_number padding:space]"), " 1"),
(fd!("[week_number repr:sunday]"), "52"),
(fd!("[week_number repr:monday]"), "52"),
(fd!("[year]"), "2019"),
(fd!("[year base:iso_week]"), "2020"),
(fd!("[year sign:mandatory]"), "+2019"),
(fd!("[year base:iso_week sign:mandatory]"), "+2020"),
(fd!("[year repr:last_two]"), "19"),
(fd!("[year base:iso_week repr:last_two]"), "20"),
];
for &(format_description, output) in &format_output {
assert_eq!(date!(2019 - 12 - 31).format(format_description)?, output);
assert!(date!(2019 - 12 - 31)
.format_into(&mut io::sink(), format_description)
.is_ok());
}
Ok(())
}
#[test]
fn display_date() {
assert_eq!(date!(2019 - 01 - 01).to_string(), "2019-01-01");
assert_eq!(date!(2019 - 12 - 31).to_string(), "2019-12-31");
assert_eq!(date!(-4713 - 11 - 24).to_string(), "-4713-11-24");
assert_eq!(date!(-0001 - 01 - 01).to_string(), "-0001-01-01");
assert_eq!(date!(+10_000-01-01).to_string(), "+10000-01-01");
assert_eq!(date!(+100_000-01-01).to_string(), "+100000-01-01");
assert_eq!(date!(-10_000 - 01 - 01).to_string(), "-10000-01-01");
assert_eq!(date!(-100_000 - 01 - 01).to_string(), "-100000-01-01");
}
#[test]
fn format_offset() -> time::Result<()> {
let value_format_output = [
(
offset!(+01:02:03),
fd!("[offset_hour sign:automatic]"),
"01",
),
(
offset!(+01:02:03),
fd!("[offset_hour sign:mandatory]"),
"+01",
),
(
offset!(-01:02:03),
fd!("[offset_hour sign:automatic]"),
"-01",
),
(
offset!(-01:02:03),
fd!("[offset_hour sign:mandatory]"),
"-01",
),
(offset!(+01:02:03), fd!("[offset_minute]"), "02"),
(offset!(+01:02:03), fd!("[offset_second]"), "03"),
];
for &(value, format_description, output) in &value_format_output {
assert_eq!(value.format(format_description)?, output);
assert!(value
.format_into(&mut io::sink(), format_description)
.is_ok());
}
Ok(())
}
#[test]
fn display_offset() {
assert_eq!(offset!(UTC).to_string(), "+00:00:00");
assert_eq!(offset!(+0:00:01).to_string(), "+00:00:01");
assert_eq!(offset!(-0:00:01).to_string(), "-00:00:01");
assert_eq!(offset!(+1).to_string(), "+01:00:00");
assert_eq!(offset!(-1).to_string(), "-01:00:00");
assert_eq!(offset!(+23:59).to_string(), "+23:59:00");
assert_eq!(offset!(-23:59).to_string(), "-23:59:00");
assert_eq!(offset!(+23:59:59).to_string(), "+23:59:59");
assert_eq!(offset!(-23:59:59).to_string(), "-23:59:59");
}
#[test]
fn format_pdt() -> time::Result<()> {
let format_description = fd!("[year]-[month]-[day] [hour]:[minute]:[second].[subsecond]");
assert_eq!(
datetime!(1970-01-01 0:00).format(format_description)?,
"1970-01-01 00:00:00.0"
);
assert!(datetime!(1970-01-01 0:00)
.format_into(&mut io::sink(), format_description)
.is_ok());
Ok(())
}
#[test]
fn display_pdt() {
assert_eq!(
datetime!(1970-01-01 0:00).to_string(),
String::from("1970-01-01 0:00:00.0")
);
assert_eq!(
datetime!(1970-01-01 0:00:01).to_string(),
String::from("1970-01-01 0:00:01.0")
);
}
#[test]
fn format_odt() -> time::Result<()> {
let format_description = format_description::parse(
"[year]-[month]-[day] [hour]:[minute]:[second].[subsecond digits:1+] [offset_hour \
sign:mandatory]:[offset_minute]:[offset_second]",
)?;
assert_eq!(
datetime!(1970-01-01 0:00 UTC).format(&format_description)?,
"1970-01-01 00:00:00.0 +00:00:00"
);
assert!(datetime!(1970-01-01 0:00 UTC)
.format_into(&mut io::sink(), &format_description)
.is_ok());
Ok(())
}
#[test]
fn display_odt() {
assert_eq!(
datetime!(1970-01-01 0:00 UTC).to_string(),
"1970-01-01 0:00:00.0 +00:00:00"
);
}
#[test]
fn insufficient_type_information() {
let assert_insufficient_type_information = |res| {
assert!(matches!(
res,
Err(time::error::Format::InsufficientTypeInformation { .. })
));
};
assert_insufficient_type_information(Time::MIDNIGHT.format(fd!("[year]")));
assert_insufficient_type_information(Time::MIDNIGHT.format(&Rfc3339));
assert_insufficient_type_information(date!(2021 - 001).format(&Rfc3339));
assert_insufficient_type_information(datetime!(2021 - 001 0:00).format(&Rfc3339));
assert_insufficient_type_information(Time::MIDNIGHT.format(&Rfc2822));
assert_insufficient_type_information(date!(2021 - 001).format(&Rfc2822));
assert_insufficient_type_information(datetime!(2021 - 001 0:00).format(&Rfc2822));
assert_insufficient_type_information(
Time::MIDNIGHT.format(&FormatItem::First(&[FormatItem::Compound(fd!("[year]"))])),
);
}
#[test]
fn failed_write() -> time::Result<()> {
/// Allow at most `$n` bytes to be written.
macro_rules! bytes {
($n:literal) => {
&mut &mut [0; $n][..]
};
}
let assert_err = |res| {
assert!(
matches!(res, Err(time::error::Format::StdIo(e)) if e.kind() == ErrorKind::WriteZero)
);
};
assert_err(Time::MIDNIGHT.format_into(bytes!(0), fd!("foo")));
assert_err(Time::MIDNIGHT.format_into(bytes!(0), &FormatItem::Compound(fd!("foo"))));
assert_err(Time::MIDNIGHT.format_into(
bytes!(0),
&FormatItem::Optional(&FormatItem::Compound(fd!("foo"))),
));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(0), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(4), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(5), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(7), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(8), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(10), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(11), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(13), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(14), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(16), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(17), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(19), &Rfc3339));
assert_err(datetime!(2021-001 0:00:00.1 UTC).format_into(bytes!(19), &Rfc3339));
assert_err(datetime!(2021-001 0:00:00.1 UTC).format_into(bytes!(20), &Rfc3339));
assert_err(datetime!(2021-001 0:00 +0:01).format_into(bytes!(19), &Rfc3339));
assert_err(datetime!(2021-001 0:00 +0:01).format_into(bytes!(20), &Rfc3339));
assert_err(datetime!(2021-001 0:00 +0:01).format_into(bytes!(22), &Rfc3339));
assert_err(datetime!(2021-001 0:00 +0:01).format_into(bytes!(23), &Rfc3339));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(0), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(4), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(6), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(7), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(8), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(11), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(12), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(16), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(17), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(19), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(20), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(22), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(23), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(25), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(26), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(27), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(29), &Rfc2822));
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(bytes!(30), &Rfc2822));
assert_err(Time::MIDNIGHT.format_into(bytes!(0), fd!("[hour padding:space]")));
assert_err(Time::MIDNIGHT.format_into(bytes!(1), fd!("[hour padding:space]")));
assert_err(offset!(+1).format_into(bytes!(0), fd!("[offset_hour sign:mandatory]")));
assert_err(offset!(-1).format_into(bytes!(0), fd!("[offset_hour]")));
assert_err(offset!(-1).format_into(bytes!(1), fd!("[offset_hour]")));
assert_err(date!(-1 - 001).format_into(bytes!(0), fd!("[year]")));
assert_err(date!(2021 - 001).format_into(bytes!(0), fd!("[year sign:mandatory]")));
assert_err(date!(+999_999 - 001).format_into(bytes!(4), fd!("[year]")));
assert_err(date!(+99_999 - 001).format_into(bytes!(4), fd!("[year]")));
let component_names = [
"day",
"month",
"ordinal",
"weekday",
"week_number",
"year",
"hour",
"minute",
"period",
"second",
"subsecond",
"offset_hour",
"offset_minute",
"offset_second",
];
for component in &component_names {
assert_err(OffsetDateTime::UNIX_EPOCH.format_into(
bytes!(0),
&format_description::parse(&format!("[{}]", component))?,
));
}
Ok(())
}
#[test]
fn first() -> time::Result<()> {
assert_eq!(Time::MIDNIGHT.format(&FormatItem::First(&[]))?, "");
assert_eq!(
Time::MIDNIGHT.format(&FormatItem::First(&[FormatItem::Compound(fd!("[hour]"))]))?,
"00"
);
Ok(())
}
#[test]
fn test_ownedformat_item() -> time::Result<()> {
let owned = {
let format_string = format!("[hour]-[minute]-literal");
let borrowed = format_description::parse(&format_string)?;
borrowed
.into_iter()
.map(|v| v.make_owned())
.collect::<Vec<OwnedFormatItem>>()
};
assert_eq!(Time::MIDNIGHT.format(&owned)?, "00-00-literal");
Ok(())
}