fix profiling conflicts with no_std

.github/CODEOWNERS

@@ -0,0 +1 @@
+@torao

src/lib.rs

@@ -16,7 +16,7 @@
 //!
 //! This crate is `no_std` compatible.
 //!
-#![cfg_attr(not(test), no_std)]
+#![no_std]
 use core::cmp::min;
 
 use rand::{Error, RngCore, SeedableRng};
@@ -171,34 +171,3 @@ impl RngCore for TinyMT32 {
     Ok(())
   }
 }
-
-#[cfg(test)]
-mod test {
-
-  #[test]
-  #[cfg(not(target_os = "windows"))]
-  fn profiling() {
-    use super::*;
-    use pprof;
-    use rand::Rng;
-    let guard = pprof::ProfilerGuardBuilder::default()
-      .frequency(1000)
-      .blocklist(&["libc", "libgcc", "pthread"])
-      .build()
-      .unwrap();
-
-    let mut random = TinyMT64::from_entropy();
-    for _i in 0..10000 {
-      let rn = random.gen_range(0.0..1.0);
-      assert!((0.0..1.0).contains(&rn));
-    }
-
-    if let Ok(report) = guard.report().build() {
-      println!("report: {:?}", &report);
-    };
-    if let Ok(report) = guard.report().build() {
-      let file = std::fs::File::create("flamegraph.svg").unwrap();
-      report.flamegraph(file).unwrap();
-    };
-  }
-}

tests/lib.rs

@@ -95,3 +95,29 @@ fn verify_chi_squared(histogram: &[u32], expected: f64, threshold: f64) {
   println!("χ² := {}, expected := {}", chi2, expected);
   assert!(chi2 < threshold);
 }
+
+#[test]
+#[cfg(not(target_os = "windows"))]
+fn profiling() {
+  use pprof;
+  use rand::Rng;
+  let guard = pprof::ProfilerGuardBuilder::default()
+    .frequency(1000)
+    .blocklist(&["libc", "libgcc", "pthread"])
+    .build()
+    .unwrap();
+
+  let mut random = TinyMT64::from_entropy();
+  for _i in 0..10000 {
+    let rn = random.gen_range(0.0..1.0);
+    assert!((0.0..1.0).contains(&rn));
+  }
+
+  if let Ok(report) = guard.report().build() {
+    println!("report: {:?}", &report);
+  };
+  if let Ok(report) = guard.report().build() {
+    let file = std::fs::File::create("flamegraph.svg").unwrap();
+    report.flamegraph(file).unwrap();
+  };
+}