Auto merge of #21503 - ahmedcharles:remove-test-features, r=alexcrichton

I think this is all of the remaining code to be removed. Let me know if I've missed anything.

Closes #19145

2 files changed, 18 insertions, 222 deletions

diff --git a/src/libtest/lib.rs b/src/libtest/lib.rs
index 98e031f863e..7226c6423b8 100644
--- a/src/libtest/lib.rs
+++ b/src/libtest/lib.rs
@@ -54,7 +54,7 @@ use self::OutputLocation::*;
 use stats::Stats;
 use getopts::{OptGroup, optflag, optopt};
 use regex::Regex;
-use serialize::{json, Decodable, Encodable};
+use serialize::Encodable;
 use term::Terminal;
 use term::color::{Color, RED, YELLOW, GREEN, CYAN};
 
@@ -62,7 +62,6 @@ use std::any::Any;
 use std::cmp;
 use std::collections::BTreeMap;
 use std::fmt;
-use std::io::fs::PathExtensions;
 use std::io::stdio::StdWriter;
 use std::io::{File, ChanReader, ChanWriter};
 use std::io;
@@ -438,9 +437,6 @@ struct ConsoleTestState<T> {
     log_out: Option<File>,
     out: OutputLocation<T>,
     use_color: bool,
-    show_boxplot: bool,
-    boxplot_width: uint,
-    show_all_stats: bool,
     total: uint,
     passed: uint,
     failed: uint,
@@ -467,9 +463,6 @@ impl<T: Writer> ConsoleTestState<T> {
             out: out,
             log_out: log_out,
             use_color: use_color(opts),
-            show_boxplot: false,
-            boxplot_width: 50,
-            show_all_stats: false,
             total: 0u,
             passed: 0u,
             failed: 0u,
@@ -545,33 +538,13 @@ impl<T: Writer> ConsoleTestState<T> {
             TrIgnored => self.write_ignored(),
             TrMetrics(ref mm) => {
                 try!(self.write_metric());
-                self.write_plain(format!(": {}", fmt_metrics(mm)).as_slice())
+                self.write_plain(format!(": {}", mm.fmt_metrics()).as_slice())
             }
             TrBench(ref bs) => {
                 try!(self.write_bench());
 
-                if self.show_boxplot {
-                    let mut wr = Vec::new();
-
-                    try!(stats::write_boxplot(&mut wr, &bs.ns_iter_summ, self.boxplot_width));
-
-                    let s = String::from_utf8(wr).unwrap();
-
-                    try!(self.write_plain(format!(": {}", s).as_slice()));
-                }
-
-                if self.show_all_stats {
-                    let mut wr = Vec::new();
-
-                    try!(stats::write_5_number_summary(&mut wr, &bs.ns_iter_summ));
-
-                    let s = String::from_utf8(wr).unwrap();
-
-                    try!(self.write_plain(format!(": {}", s).as_slice()));
-                } else {
-                    try!(self.write_plain(format!(": {}",
-                                                  fmt_bench_samples(bs)).as_slice()));
-                }
+                try!(self.write_plain(format!(": {}",
+                                              fmt_bench_samples(bs)).as_slice()));
 
                 Ok(())
             }
@@ -588,7 +561,7 @@ impl<T: Writer> ConsoleTestState<T> {
                         TrOk => "ok".to_string(),
                         TrFailed => "failed".to_string(),
                         TrIgnored => "ignored".to_string(),
-                        TrMetrics(ref mm) => fmt_metrics(mm),
+                        TrMetrics(ref mm) => mm.fmt_metrics(),
                         TrBench(ref bs) => fmt_bench_samples(bs)
                     }, test.name.as_slice());
                 o.write(s.as_bytes())
@@ -624,34 +597,14 @@ impl<T: Writer> ConsoleTestState<T> {
         Ok(())
     }
 
-    pub fn write_run_finish(&mut self,
-                            ratchet_metrics: &Option<Path>,
-                            ratchet_pct: Option<f64>) -> io::IoResult<bool> {
+    pub fn write_run_finish(&mut self) -> io::IoResult<bool> {
         assert!(self.passed + self.failed + self.ignored + self.measured == self.total);
 
-        let ratchet_success = match *ratchet_metrics {
-            None => true,
-            Some(ref pth) => {
-                try!(self.write_plain(format!("\nusing metrics ratchet: {:?}\n",
-                                              pth.display()).as_slice()));
-                match ratchet_pct {
-                    None => (),
-                    Some(pct) =>
-                        try!(self.write_plain(format!("with noise-tolerance \
-                                                         forced to: {}%\n",
-                                                        pct).as_slice()))
-                }
-                true
-            }
-        };
-
-        let test_success = self.failed == 0u;
-        if !test_success {
+        let success = self.failed == 0u;
+        if !success {
             try!(self.write_failures());
         }
 
-        let success = ratchet_success && test_success;
-
         try!(self.write_plain("\ntest result: "));
         if success {
             // There's no parallelism at this point so it's safe to use color
@@ -666,15 +619,6 @@ impl<T: Writer> ConsoleTestState<T> {
     }
 }
 
-pub fn fmt_metrics(mm: &MetricMap) -> String {
-    let MetricMap(ref mm) = *mm;
-    let v : Vec<String> = mm.iter()
-        .map(|(k,v)| format!("{}: {} (+/- {})", *k,
-                             v.value as f64, v.noise as f64))
-        .collect();
-    v.connect(", ")
-}
-
 pub fn fmt_bench_samples(bs: &BenchSamples) -> String {
     if bs.mb_s != 0 {
         format!("{:>9} ns/iter (+/- {}) = {} MB/s",
@@ -745,7 +689,7 @@ pub fn run_tests_console(opts: &TestOpts, tests: Vec<TestDescAndFn> ) -> io::IoR
         None => {}
     }
     try!(run_tests(opts, tests, |x| callback(&x, &mut st)));
-    return st.write_run_finish(&None, None);
+    return st.write_run_finish();
 }
 
 #[test]
@@ -766,9 +710,6 @@ fn should_sort_failures_before_printing_them() {
         log_out: None,
         out: Raw(Vec::new()),
         use_color: false,
-        show_boxplot: false,
-        boxplot_width: 0,
-        show_all_stats: false,
         total: 0u,
         passed: 0u,
         failed: 0u,
@@ -1010,30 +951,6 @@ impl MetricMap {
         MetricMap(BTreeMap::new())
     }
 
-    /// Load MetricDiff from a file.
-    ///
-    /// # Panics
-    ///
-    /// This function will panic if the path does not exist or the path does not
-    /// contain a valid metric map.
-    pub fn load(p: &Path) -> MetricMap {
-        assert!(p.exists());
-        let mut f = File::open(p).unwrap();
-        let value = json::from_reader(&mut f as &mut io::Reader).unwrap();
-        let mut decoder = json::Decoder::new(value);
-        MetricMap(match Decodable::decode(&mut decoder) {
-            Ok(t) => t,
-            Err(e) => panic!("failure decoding JSON: {:?}", e)
-        })
-    }
-
-    /// Write MetricDiff to a file.
-    pub fn save(&self, p: &Path) -> io::IoResult<()> {
-        let mut file = try!(File::create(p));
-        let MetricMap(ref map) = *self;
-        write!(&mut file, "{}", json::as_json(map))
-    }
-
     /// Insert a named `value` (+/- `noise`) metric into the map. The value
     /// must be non-negative. The `noise` indicates the uncertainty of the
     /// metric, which doubles as the "noise range" of acceptable
@@ -1055,6 +972,15 @@ impl MetricMap {
         let MetricMap(ref mut map) = *self;
         map.insert(name.to_string(), m);
     }
+
+    pub fn fmt_metrics(&self) -> String {
+        let MetricMap(ref mm) = *self;
+        let v : Vec<String> = mm.iter()
+            .map(|(k,v)| format!("{}: {} (+/- {})", *k,
+                                 v.value as f64, v.noise as f64))
+            .collect();
+        v.connect(", ")
+    }
 }
 
 
diff --git a/src/libtest/stats.rs b/src/libtest/stats.rs
index cd461cf5766..76b85cc10cd 100644
--- a/src/libtest/stats.rs
+++ b/src/libtest/stats.rs
@@ -13,9 +13,7 @@
 use std::cmp::Ordering::{self, Less, Greater, Equal};
 use std::collections::hash_map::Entry::{Occupied, Vacant};
 use std::collections::hash_map::{self, Hasher};
-use std::fmt;
 use std::hash::Hash;
-use std::io;
 use std::mem;
 use std::num::{Float, FromPrimitive};
 
@@ -332,111 +330,6 @@ pub fn winsorize<T: Float + FromPrimitive>(samples: &mut [T], pct: T) {
     }
 }
 
-/// Render writes the min, max and quartiles of the provided `Summary` to the provided `Writer`.
-pub fn write_5_number_summary<W: Writer, T: Float + fmt::Display + fmt::Debug>(w: &mut W,
-                                                          s: &Summary<T>) -> io::IoResult<()> {
-    let (q1,q2,q3) = s.quartiles;
-    write!(w, "(min={}, q1={}, med={}, q3={}, max={})",
-                     s.min,
-                     q1,
-                     q2,
-                     q3,
-                     s.max)
-}
-
-/// Render a boxplot to the provided writer. The boxplot shows the min, max and quartiles of the
-/// provided `Summary` (thus includes the mean) and is scaled to display within the range of the
-/// nearest multiple-of-a-power-of-ten above and below the min and max of possible values, and
-/// target `width_hint` characters of display (though it will be wider if necessary).
-///
-/// As an example, the summary with 5-number-summary `(min=15, q1=17, med=20, q3=24, max=31)` might
-/// display as:
-///
-/// ```{.ignore}
-///   10 |        [--****#******----------]          | 40
-/// ```
-pub fn write_boxplot<W: Writer, T: Float + fmt::Display + fmt::Debug + FromPrimitive>(
-                     w: &mut W,
-                     s: &Summary<T>,
-                     width_hint: uint)
-                      -> io::IoResult<()> {
-
-    let (q1,q2,q3) = s.quartiles;
-
-    // the .abs() handles the case where numbers are negative
-    let ten: T = FromPrimitive::from_uint(10).unwrap();
-    let lomag = ten.powf(s.min.abs().log10().floor());
-    let himag = ten.powf(s.max.abs().log10().floor());
-
-    // need to consider when the limit is zero
-    let zero: T = Float::zero();
-    let lo = if lomag == Float::zero() {
-        zero
-    } else {
-        (s.min / lomag).floor() * lomag
-    };
-
-    let hi = if himag == Float::zero() {
-        zero
-    } else {
-        (s.max / himag).ceil() * himag
-    };
-
-    let range = hi - lo;
-
-    let lostr = lo.to_string();
-    let histr = hi.to_string();
-
-    let overhead_width = lostr.len() + histr.len() + 4;
-    let range_width = width_hint - overhead_width;
-    let range_float = FromPrimitive::from_uint(range_width).unwrap();
-    let char_step = range / range_float;
-
-    try!(write!(w, "{} |", lostr));
-
-    let mut c = 0;
-    let mut v = lo;
-
-    while c < range_width && v < s.min {
-        try!(write!(w, " "));
-        v = v + char_step;
-        c += 1;
-    }
-    try!(write!(w, "["));
-    c += 1;
-    while c < range_width && v < q1 {
-        try!(write!(w, "-"));
-        v = v + char_step;
-        c += 1;
-    }
-    while c < range_width && v < q2 {
-        try!(write!(w, "*"));
-        v = v + char_step;
-        c += 1;
-    }
-    try!(write!(w, "#"));
-    c += 1;
-    while c < range_width && v < q3 {
-        try!(write!(w, "*"));
-        v = v + char_step;
-        c += 1;
-    }
-    while c < range_width && v < s.max {
-        try!(write!(w, "-"));
-        v = v + char_step;
-        c += 1;
-    }
-    try!(write!(w, "]"));
-    while c < range_width {
-        try!(write!(w, " "));
-        v = v + char_step;
-        c += 1;
-    }
-
-    try!(write!(w, "| {}", histr));
-    Ok(())
-}
-
 /// Returns a HashMap with the number of occurrences of every element in the
 /// sequence that the iterator exposes.
 pub fn freq_count<T, U>(mut iter: T) -> hash_map::HashMap<U, uint>
@@ -458,8 +351,6 @@ pub fn freq_count<T, U>(mut iter: T) -> hash_map::HashMap<U, uint>
 mod tests {
     use stats::Stats;
     use stats::Summary;
-    use stats::write_5_number_summary;
-    use stats::write_boxplot;
     use std::io;
     use std::f64;
 
@@ -479,10 +370,6 @@ mod tests {
         let mut w = io::stdout();
         let w = &mut w;
         (write!(w, "\n")).unwrap();
-        write_5_number_summary(w, &summ2).unwrap();
-        (write!(w, "\n")).unwrap();
-        write_boxplot(w, &summ2, 50).unwrap();
-        (write!(w, "\n")).unwrap();
 
         assert_eq!(summ.sum, summ2.sum);
         assert_eq!(summ.min, summ2.min);
@@ -1029,23 +916,6 @@ mod tests {
     }
 
     #[test]
-    fn test_boxplot_nonpositive() {
-        fn t(s: &Summary<f64>, expected: String) {
-            let mut m = Vec::new();
-            write_boxplot(&mut m, s, 30).unwrap();
-            let out = String::from_utf8(m).unwrap();
-            assert_eq!(out, expected);
-        }
-
-        t(&Summary::new(&[-2.0f64, -1.0f64]),
-                        "-2 |[------******#*****---]| -1".to_string());
-        t(&Summary::new(&[0.0f64, 2.0f64]),
-                        "0 |[-------*****#*******---]| 2".to_string());
-        t(&Summary::new(&[-2.0f64, 0.0f64]),
-                        "-2 |[------******#******---]| 0".to_string());
-
-    }
-    #[test]
     fn test_sum_f64s() {
         assert_eq!([0.5f64, 3.2321f64, 1.5678f64].sum(), 5.2999);
     }