diff --git a/src/process/mod.rs b/src/process/mod.rs
index 8c2bad0..6c48040 100644
--- a/src/process/mod.rs
+++ b/src/process/mod.rs
@@ -10,8 +10,10 @@
 //! 
 //! This module is designed to work consistently across Windows, macOS, and Linux.
 
-pub mod run;
-pub mod mgmt;
+mod run;
+mod mgmt;
+#[cfg(test)]
+mod tests;
 
-use run::*;
-use mgmt::*;
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+pub use run::*;
+pub use mgmt::*;
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diff --git a/src/process/tests.rs b/src/process/tests.rs
new file mode 100644
index 0000000..42dab96
--- /dev/null
+++ b/src/process/tests.rs
@@ -0,0 +1,92 @@
+#[cfg(test)]
+mod tests {
+    use crate::process::run::{run, run_silent, run_script, run_command};
+    use crate::text::dedent;
+
+    #[test]
+    fn test_run_command() {
+        // Test running a simple echo command
+        let result = run_command("echo hello").unwrap();
+        assert!(result.success);
+        assert_eq!(result.code, 0);
+        assert!(result.stdout.trim().contains("hello"));
+        assert_eq!(result.stderr, "");
+    }
+
+    #[test]
+    fn test_run_silent_command() {
+        // Test running a command silently
+        let result = run_silent("echo silent test").unwrap();
+        assert!(result.success);
+        assert_eq!(result.code, 0);
+        assert!(result.stdout.trim().contains("silent test"));
+        assert_eq!(result.stderr, "");
+    }
+
+    #[test]
+    fn test_run_script() {
+        // Test running a multi-line script
+        let script = r#"
+            echo "line 1"
+            echo "line 2"
+        "#;
+        
+        let result = run_script(script).unwrap();
+        assert!(result.success);
+        assert_eq!(result.code, 0);
+        assert!(result.stdout.contains("line 1"));
+        assert!(result.stdout.contains("line 2"));
+        assert_eq!(result.stderr, "");
+    }
+
+    #[test]
+    fn test_run_with_dedent() {
+        // Test that run properly dedents scripts
+        let script = r#"
+            echo "This has 12 spaces of indentation"
+                echo "This has 16 spaces (4 more than the common indentation)"
+        "#;
+        
+        // The dedent function should remove the common 12 spaces
+        let dedented = dedent(script);
+        assert!(dedented.contains("echo \"This has 12 spaces of indentation\""));
+        assert!(dedented.contains("    echo \"This has 16 spaces (4 more than the common indentation)\""));
+        
+        // Running the script should work with the dedented content
+        let result = run(script).unwrap();
+        assert!(result.success);
+        assert_eq!(result.code, 0);
+        assert!(result.stdout.contains("This has 12 spaces of indentation"));
+        assert!(result.stdout.contains("This has 16 spaces (4 more than the common indentation)"));
+    }
+
+    #[test]
+    fn test_run_detects_script_vs_command() {
+        // Test that run correctly identifies scripts vs commands
+        
+        // One-liner should be treated as a command
+        let one_liner = "echo one-liner test";
+        let result = run(one_liner).unwrap();
+        assert!(result.success);
+        assert!(result.stdout.contains("one-liner test"));
+        
+        // Multi-line input should be treated as a script
+        let multi_line = "echo first line\necho second line";
+        let result = run(multi_line).unwrap();
+        assert!(result.success);
+        assert!(result.stdout.contains("first line"));
+        assert!(result.stdout.contains("second line"));
+    }
+
+    #[test]
+    fn test_run_empty_command() {
+        // Test handling of empty commands
+        let result = run("");
+        assert!(result.is_err());
+        // The specific error should be EmptyCommand
+        match result {
+            Err(crate::process::run::RunError::EmptyCommand) => (),
+            _ => panic!("Expected EmptyCommand error"),
+        }
+    }
+}
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