1 use std::{io, io::prelude::Write};
3 use super::OutputFormatter;
5 bench::fmt_bench_samples,
6 console::{ConsoleTestState, OutputLocation},
8 test_result::TestResult,
14 // insert a '\n' after 100 tests in quiet mode
15 const QUIET_MODE_MAX_COLUMN: usize = 100;
17 pub(crate) struct TerseFormatter<T> {
18 out: OutputLocation<T>,
20 is_multithreaded: bool,
21 /// Number of columns to fill when aligning names
25 total_test_count: usize,
28 impl<T: Write> TerseFormatter<T> {
30 out: OutputLocation<T>,
33 is_multithreaded: bool,
41 total_test_count: 0, // initialized later, when write_run_start is called
45 pub fn write_ok(&mut self) -> io::Result<()> {
46 self.write_short_result(".", term::color::GREEN)
49 pub fn write_failed(&mut self) -> io::Result<()> {
50 self.write_short_result("F", term::color::RED)
53 pub fn write_ignored(&mut self) -> io::Result<()> {
54 self.write_short_result("i", term::color::YELLOW)
57 pub fn write_allowed_fail(&mut self) -> io::Result<()> {
58 self.write_short_result("a", term::color::YELLOW)
61 pub fn write_bench(&mut self) -> io::Result<()> {
62 self.write_pretty("bench", term::color::CYAN)
65 pub fn write_short_result(
68 color: term::color::Color,
70 self.write_pretty(result, color)?;
71 if self.test_count % QUIET_MODE_MAX_COLUMN == QUIET_MODE_MAX_COLUMN - 1 {
72 // we insert a new line every 100 dots in order to flush the
73 // screen when dealing with line-buffered output (e.g., piping to
74 // `stamp` in the rust CI).
75 let out = format!(" {}/{}\n", self.test_count + 1, self.total_test_count);
76 self.write_plain(&out)?;
83 pub fn write_pretty(&mut self, word: &str, color: term::color::Color) -> io::Result<()> {
85 OutputLocation::Pretty(ref mut term) => {
89 term.write_all(word.as_bytes())?;
95 OutputLocation::Raw(ref mut stdout) => {
96 stdout.write_all(word.as_bytes())?;
102 pub fn write_plain<S: AsRef<str>>(&mut self, s: S) -> io::Result<()> {
104 self.out.write_all(s.as_bytes())?;
108 pub fn write_outputs(&mut self, state: &ConsoleTestState) -> io::Result<()> {
109 self.write_plain("\nsuccesses:\n")?;
110 let mut successes = Vec::new();
111 let mut stdouts = String::new();
112 for &(ref f, ref stdout) in &state.not_failures {
113 successes.push(f.name.to_string());
114 if !stdout.is_empty() {
115 stdouts.push_str(&format!("---- {} stdout ----\n", f.name));
116 let output = String::from_utf8_lossy(stdout);
117 stdouts.push_str(&output);
121 if !stdouts.is_empty() {
122 self.write_plain("\n")?;
123 self.write_plain(&stdouts)?;
126 self.write_plain("\nsuccesses:\n")?;
128 for name in &successes {
129 self.write_plain(&format!(" {}\n", name))?;
134 pub fn write_failures(&mut self, state: &ConsoleTestState) -> io::Result<()> {
135 self.write_plain("\nfailures:\n")?;
136 let mut failures = Vec::new();
137 let mut fail_out = String::new();
138 for &(ref f, ref stdout) in &state.failures {
139 failures.push(f.name.to_string());
140 if !stdout.is_empty() {
141 fail_out.push_str(&format!("---- {} stdout ----\n", f.name));
142 let output = String::from_utf8_lossy(stdout);
143 fail_out.push_str(&output);
147 if !fail_out.is_empty() {
148 self.write_plain("\n")?;
149 self.write_plain(&fail_out)?;
152 self.write_plain("\nfailures:\n")?;
154 for name in &failures {
155 self.write_plain(&format!(" {}\n", name))?;
160 fn write_test_name(&mut self, desc: &TestDesc) -> io::Result<()> {
161 let name = desc.padded_name(self.max_name_len, desc.name.padding());
162 if let Some(test_mode) = desc.test_mode() {
163 self.write_plain(&format!("test {} - {} ... ", name, test_mode))?;
165 self.write_plain(&format!("test {} ... ", name))?;
172 impl<T: Write> OutputFormatter for TerseFormatter<T> {
173 fn write_run_start(&mut self, test_count: usize, shuffle_seed: Option<u64>) -> io::Result<()> {
174 self.total_test_count = test_count;
175 let noun = if test_count != 1 { "tests" } else { "test" };
176 let shuffle_seed_msg = if let Some(shuffle_seed) = shuffle_seed {
177 format!(" (shuffle seed: {})", shuffle_seed)
181 self.write_plain(&format!("\nrunning {} {}{}\n", test_count, noun, shuffle_seed_msg))
184 fn write_test_start(&mut self, desc: &TestDesc) -> io::Result<()> {
185 // Remnants from old libtest code that used the padding value
186 // in order to indicate benchmarks.
187 // When running benchmarks, terse-mode should still print their name as if
188 // it is the Pretty formatter.
189 if !self.is_multithreaded && desc.name.padding() == NamePadding::PadOnRight {
190 self.write_test_name(desc)?;
200 _: Option<&time::TestExecTime>,
202 _: &ConsoleTestState,
203 ) -> io::Result<()> {
205 TestResult::TrOk => self.write_ok(),
206 TestResult::TrFailed | TestResult::TrFailedMsg(_) | TestResult::TrTimedFail => {
209 TestResult::TrIgnored => self.write_ignored(),
210 TestResult::TrAllowedFail => self.write_allowed_fail(),
211 TestResult::TrBench(ref bs) => {
212 if self.is_multithreaded {
213 self.write_test_name(desc)?;
216 self.write_plain(&format!(": {}\n", fmt_bench_samples(bs)))
221 fn write_timeout(&mut self, desc: &TestDesc) -> io::Result<()> {
222 self.write_plain(&format!(
223 "test {} has been running for over {} seconds\n",
225 time::TEST_WARN_TIMEOUT_S
229 fn write_run_finish(&mut self, state: &ConsoleTestState) -> io::Result<bool> {
230 if state.options.display_output {
231 self.write_outputs(state)?;
233 let success = state.failed == 0;
235 self.write_failures(state)?;
238 self.write_plain("\ntest result: ")?;
241 // There's no parallelism at this point so it's safe to use color
242 self.write_pretty("ok", term::color::GREEN)?;
244 self.write_pretty("FAILED", term::color::RED)?;
247 let s = if state.allowed_fail > 0 {
249 ". {} passed; {} failed ({} allowed); {} ignored; {} measured; {} filtered out",
251 state.failed + state.allowed_fail,
259 ". {} passed; {} failed; {} ignored; {} measured; {} filtered out",
260 state.passed, state.failed, state.ignored, state.measured, state.filtered_out
264 self.write_plain(&s)?;
266 if let Some(ref exec_time) = state.exec_time {
267 let time_str = format!("; finished in {}", exec_time);
268 self.write_plain(&time_str)?;
271 self.write_plain("\n\n")?;