Add example files

examples/hello/Cargo.toml

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+[package]
+name = "hello"
+version = "0.1.0"
+authors = ["Nathan Stocks <nathan@agileperception.com>"]
+edition = "2018"
+
+[dependencies]
+
+[dev-dependencies]
+criterion = { version = "0.3", features = ["html_reports"] }
+
+[[bench]]
+name = "snuggle_speed"
+harness = false

examples/hello/benches/snuggle_speed.rs

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+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use hello::snuggle;
+
+pub fn snuggle_benchmark(c: &mut Criterion) {
+    c.bench_function("snuggle 2", |b| b.iter(|| snuggle(black_box(2))));
+}
+
+criterion_group!(benches, snuggle_benchmark);
+criterion_main!(benches);

examples/hello/src/lib.rs

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+/// # Example
+///
+/// ```
+/// # use hello::snuggle;
+/// let bunnies = snuggle(5);
+/// assert_eq!(bunnies, 40);
+/// ```
+pub fn snuggle(bunnies: u128) -> u128 {
+    bunnies << 3
+}
+
+#[cfg(test)]
+mod test {
+    use std::num::ParseIntError;
+
+    use super::*;
+
+    #[test]
+    fn snuggling_bunnies_multiply() {
+        assert_eq!(snuggle(2), 16);
+    }
+
+    #[should_panic]
+    #[test]
+    fn scared_bunny() {
+        panic!("Hop hoppity hop!");
+    }
+
+    #[test]
+    fn bunny_result() -> Result<(), ParseIntError> {
+        let num_bunnies: u64 = "4".parse()?;
+        assert_eq!(num_bunnies, 4);
+        Ok(())
+    }
+}

examples/hello/src/main.rs

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+fn main() {}
+
+#[cfg(test)]
+mod test {
+
+    #[test]
+    fn the_bin_test() {
+        assert_eq!(1 + 1, 2);
+    }
+}

examples/hello/tests/anything.rs

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+use hello::snuggle;
+
+#[test]
+fn it_works_from_outside() {
+    assert!(snuggle(4) == 32);
+}