282 lines
10 KiB
Rust
282 lines
10 KiB
Rust
use std::str::FromStr;
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use std::io::Write;
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use serde::{Serialize, Deserialize};
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use itertools::Itertools;
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use chrono::{
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DateTime, Utc, Offset, TimeZone, Duration, NaiveTime, Timelike,
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NaiveDateTime,
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};
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use crate::error;
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use crate::models::Entry;
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fn format_duration(dur: Duration) -> String {
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format!("{}:{:02}:{:02}", dur.num_hours(), dur.num_minutes() % 60, dur.num_seconds() % 60)
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}
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fn format_start(t: NaiveTime) -> String {
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format!("{:02}:{:02}:{:02} -", t.hour(), t.minute(), t.second())
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}
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fn lpad(s: &str, len: usize) -> String {
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let padding = " ".repeat(len.saturating_sub(s.len()));
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padding + s
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}
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fn rpad(s: &str, len: usize) -> String {
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let padding = " ".repeat(len.saturating_sub(s.len()));
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s.to_string() + &padding
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}
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fn format_end(start: NaiveDateTime, end: NaiveDateTime) -> String {
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let extra_days = (end - start).num_days();
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let d = if extra_days > 0 { format!("+{}d", extra_days) } else { "".into() };
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format!(
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"{:02}:{:02}:{:02}{}",
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end.hour(),
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end.minute() % 60,
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end.second() % 60,
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d
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)
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}
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "lowercase")]
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pub enum Formatter {
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Text,
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Custom(String),
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}
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impl Formatter {
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/// Prints the given entries to the specified output device.
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///
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/// the current time is given as the `now` argument and the offset from UTC
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/// to the local timezone is given in `offset` to prevent this function from
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/// using a secondary effect to retrieve the time and conver dates. This
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/// also makes it easier to test.
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pub fn print_formatted<W: Write, O: Offset>(&self, entries: Vec<Entry>, out: &mut W, now: DateTime<Utc>, offset: O) -> error::Result<()> {
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match &self {
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Formatter::Text => self.print_formatted_text(entries, out, now, offset)?,
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Formatter::Custom(name) => {
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}
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}
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Ok(())
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}
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/// Print in the default text format. Assume entries are sorted by sheet and
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/// then by start
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fn print_formatted_text<W: Write, O: Offset>(&self, entries: Vec<Entry>, out: &mut W, now: DateTime<Utc>, offset: O) -> error::Result<()> {
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let grouped_entries = entries.into_iter().group_by(|e| e.sheet.to_string());
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// Build a timezone based on the offset given to this function. This
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// will later be used to properly group the entries by date in the local
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// timezone.
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let fixed_offset = offset.fix();
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for (key, group) in grouped_entries.into_iter() {
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writeln!(out, "Timesheet: {}", key)?;
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// End Duration Notes")?;
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// A vector of lines to be printed, with all the components
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let mut lines = Vec::new();
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let entries_by_date = group.group_by(|e| fixed_offset.from_utc_datetime(&e.start.naive_utc()).date());
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let mut total = Duration::seconds(0);
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for (date, entries) in entries_by_date.into_iter() {
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let mut daily = Duration::seconds(0);
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for (i,entry) in entries.into_iter().enumerate() {
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let start = format_start(fixed_offset.from_utc_datetime(&entry.start.naive_utc()).time());
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let end = entry.end.map(|t| {
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format_end(
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fixed_offset.from_utc_datetime(&entry.start.naive_utc()).naive_local(),
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fixed_offset.from_utc_datetime(&t.naive_utc()).naive_local()
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)
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}).unwrap_or(" ".into());
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let duration = entry.end.unwrap_or(now) - entry.start;
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daily = daily + duration;
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let duration = format_duration(duration);
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if i == 0 {
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let date = date.format("%a %b %d, %Y").to_string();
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lines.push(["".into(), date, start, end, duration, entry.note]);
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} else {
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lines.push(["".into(), "".into(), start, end, duration, entry.note]);
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}
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}
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total = total + daily;
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lines.push(["".into(), "".into(), "".into(), "".into(), format_duration(daily), "".into()]);
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}
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// compute some column widths before printing
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// When array_map is stabilized this can be shortened
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let lengths = lines
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.iter()
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.map(|[i, d, s, e, du, n]| [i.len(), d.len(), s.len(), e.len(), du.len(), n.len()])
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.reduce(|[a, b, c, d, e, f], [g, h, i, j, k, l]| {
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[a.max(g), b.max(h), c.max(i), d.max(j), e.max(k), f.max(l)]
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}).unwrap();
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writeln!(out,
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"{} {} {} {} {} {}",
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lpad(" ", 3.max(lengths[0])),
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rpad("Day", 18),
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rpad("Start", 10),
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rpad("End", 10.max(lengths[3])),
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rpad("Duration", 8.max(lengths[4])),
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"Notes",
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)?;
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for [id, date, start, end, duration, note] in lines {
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writeln!(
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out,
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"{} {} {} {} {} {}",
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lpad(&id, 3.max(lengths[0])),
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rpad(&date, 18),
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rpad(&start, 10),
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rpad(&end, 10.max(lengths[3])),
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lpad(&duration, 8.max(lengths[4])),
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note,
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)?;
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}
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writeln!(out,
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"{} {}-{}-{}-{}-{}",
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lpad(" ", 3.max(lengths[0])),
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"-".repeat(18),
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"-".repeat(10),
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"-".repeat(10.max(lengths[3])),
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"-".repeat(8.max(lengths[4])),
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"-".repeat(4.max(lengths[5])),
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)?;
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writeln!(out,
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"{} {} {} {} {}",
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lpad(" ", 3.max(lengths[0])),
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rpad("Total", 18),
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rpad("", 10),
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rpad("", 10.max(lengths[3])),
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lpad(&format_duration(total), 8.max(lengths[4])),
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)?;
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}
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Ok(())
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}
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}
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impl FromStr for Formatter {
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type Err = error::Error;
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fn from_str(s: &str) -> error::Result<Formatter> {
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let lower = s.to_lowercase();
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Ok(match &*lower {
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"text" => Formatter::Text,
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custom_format => Formatter::Custom(custom_format.into()),
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})
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::fmt;
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use pretty_assertions::assert_eq;
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use chrono::TimeZone;
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#[derive(PartialEq, Eq)]
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pub struct PrettyString<'a>(pub &'a str);
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/// Make diff to display string as multi-line string
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impl<'a> fmt::Debug for PrettyString<'a> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.write_str(self.0)
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}
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}
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#[test]
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fn test_text_output() {
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let formatter = Formatter::Text;
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let mut output = Vec::new();
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let entries = vec![
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Entry::new_sample(1, Utc.ymd(2008, 10, 3).and_hms(12, 0, 0), Some(Utc.ymd(2008, 10, 3).and_hms(14, 0, 0))),
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Entry::new_sample(2, Utc.ymd(2008, 10, 3).and_hms(16, 0, 0), Some(Utc.ymd(2008, 10, 3).and_hms(18, 0, 0))),
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Entry::new_sample(3, Utc.ymd(2008, 10, 5).and_hms(16, 0, 0), Some(Utc.ymd(2008, 10, 5).and_hms(18, 0, 0))),
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Entry::new_sample(4, Utc.ymd(2008, 10, 5).and_hms(18, 0, 0), None),
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];
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let now = Utc.ymd(2008, 10, 5).and_hms(20, 0, 0);
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let offset = Utc;
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formatter.print_formatted(entries, &mut output, now, offset, false).unwrap();
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assert_eq!(PrettyString(&String::from_utf8_lossy(&output)), PrettyString("Timesheet: default
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Day Start End Duration Notes
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Fri Oct 03, 2008 12:00:00 - 14:00:00 2:00:00 entry 1
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16:00:00 - 18:00:00 2:00:00 entry 2
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4:00:00
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Sun Oct 05, 2008 16:00:00 - 18:00:00 2:00:00 entry 3
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18:00:00 - 2:00:00 entry 4
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4:00:00
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---------------------------------------------------------
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Total 8:00:00
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"));
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}
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#[test]
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fn test_text_output_with_millis() {
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let formatter = Formatter::Text;
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let mut output = Vec::new();
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let entries = vec![
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Entry::new_sample(1, Utc.ymd(2008, 10, 3).and_hms_milli(12, 0, 0, 432), Some(Utc.ymd(2008, 10, 3).and_hms_milli(14, 0, 0, 312))),
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];
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let now = Utc.ymd(2008, 10, 5).and_hms(20, 0, 0);
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let offset = Utc;
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formatter.print_formatted(entries, &mut output, now, offset, false).unwrap();
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assert_eq!(PrettyString(&String::from_utf8_lossy(&output)), PrettyString("Timesheet: default
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Day Start End Duration Notes
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Fri Oct 03, 2008 12:00:00 - 14:00:00 1:59:59 entry 1
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1:59:59
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---------------------------------------------------------
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Total 1:59:59
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"));
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}
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#[test]
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fn test_text_output_long_duration() {
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let formatter = Formatter::Text;
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let mut output = Vec::new();
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let entries = vec![
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Entry::new_sample(1, Utc.ymd(2008, 10, 1).and_hms(12, 0, 0), Some(Utc.ymd(2008, 10, 3).and_hms(14, 0, 0))),
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Entry::new_sample(2, Utc.ymd(2008, 10, 3).and_hms(12, 0, 0), Some(Utc.ymd(2008, 10, 3).and_hms(14, 0, 0))),
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];
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let now = Utc.ymd(2008, 10, 5).and_hms(20, 0, 0);
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let offset = Utc;
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formatter.print_formatted(entries, &mut output, now, offset, false).unwrap();
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assert_eq!(PrettyString(&String::from_utf8_lossy(&output)), PrettyString("Timesheet: default
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Day Start End Duration Notes
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Wed Oct 01, 2008 12:00:00 - 14:00:00+2d 50:00:00 entry 1
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50:00:00
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Fri Oct 03, 2008 12:00:00 - 14:00:00 2:00:00 entry 2
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2:00:00
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----------------------------------------------------------
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Total 52:00:00
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"));
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}
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}
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