Added tests and removed unneeded

The tests convinced me that the removed methods were equivalent to `.contain`.

src/lib.rs

@@ -1,27 +1,11 @@
-use std::path::{Path, PathBuf};
+use std::path::Path;
 
 pub trait PathExt {
-    fn contains_or_ends_with(&self, pattern: &str) -> bool;
-    fn contains_or_starts_with(&self, pattern: &str) -> bool;
     fn starts_or_ends_with(&self, pattern: &str) -> bool;
     fn has_component(&self, component: &str) -> bool;
 }
 
 impl<T: AsRef<Path>> PathExt for T {
-    fn contains_or_ends_with(&self, pattern: &str) -> bool {
-        self.as_ref()
-            .to_str()
-            .map(|s| s.contains(pattern) || s.ends_with(pattern))
-            == Some(true)
-    }
-
-    fn contains_or_starts_with(&self, pattern: &str) -> bool {
-        self.as_ref()
-            .to_str()
-            .map(|s| s.contains(pattern) || s.starts_with(pattern))
-            == Some(true)
-    }
-
     fn starts_or_ends_with(&self, pattern: &str) -> bool {
         self.as_ref()
             .to_str()
@@ -35,3 +19,57 @@ impl<T: AsRef<Path>> PathExt for T {
             .any(|c| c.as_os_str().eq(component))
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::PathExt;
+    use std::path::{Path, PathBuf};
+
+    #[test]
+    fn test_has_component() {
+        let tests = &[(
+            "/opt/somewhere/someplace/",
+            vec![
+                ("opt", true),
+                ("somewhere", true),
+                ("someplace/", false),
+                ("root", false),
+            ],
+        )];
+
+        for test_case in tests {
+            for test in test_case.1.iter() {
+                assert_eq!(test_case.0.has_component(test.0), test.1);
+                let p = Path::new(test_case.0);
+                assert_eq!(p.has_component(test.0), test.1);
+                let pb = PathBuf::from(test_case.0);
+                assert_eq!(pb.has_component(test.0), test.1);
+            }
+        }
+    }
+
+    #[test]
+    fn test_starts_or_ends_with() {
+        let tests = &[(
+            "/opt/somewhere/someplace/somehow/",
+            vec![
+                ("opt", false),
+                ("/opt", true),
+                ("somewhere", false),
+                ("someplace/somehow", false),
+                ("someplace/somehow/", true),
+                ("root", false),
+            ],
+        )];
+
+        for test_case in tests {
+            for test in test_case.1.iter() {
+                assert_eq!(test_case.0.starts_or_ends_with(test.0), test.1);
+                let p = Path::new(test_case.0);
+                assert_eq!(p.starts_or_ends_with(test.0), test.1);
+                let pb = PathBuf::from(test_case.0);
+                assert_eq!(pb.starts_or_ends_with(test.0), test.1);
+            }
+        }
+    }
+}