From 41a2027624d37eff1ba1ad95ff6447bc4590645a Mon Sep 17 00:00:00 2001
From: Ian Rettig <irettig@misoenergy.org>
Date: Mon, 9 Jun 2025 13:39:41 -0400
Subject: [PATCH] Feat: Add test for finding content in file.

---
 tests/cli.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tests/cli.rs b/tests/cli.rs
index 69d71bf..aa44d27 100644
--- a/tests/cli.rs
+++ b/tests/cli.rs
@@ -1,4 +1,5 @@
 use assert_cmd::prelude::*; // Add methods on commands
+use assert_fs::prelude::*;
 use predicates::prelude::*; // Used for writing assertions
 use std::process::Command; // Run programs
 
@@ -13,3 +14,17 @@ fn file_doesnt_exist() -> Result<(), Box<dyn std::error::Error>> {
 
     Ok(())
 }
+
+#[test]
+fn find_content_in_file() -> Result<(), Box<dyn std::error::Error>> {
+    let file = assert_fs::NamedTempFile::new("sample.txt")?;
+    file.write_str("A test\nActual content\nMore content\nAnother test")?;
+
+    let mut cmd = Command::cargo_bin("grrs")?;
+    cmd.arg("test").arg(file.path());
+    cmd.assert()
+        .success()
+        .stdout(predicate::str::contains("A test\nAnother test"));
+
+    Ok(())
+}