From 1e992e31a0ca7691dc576011e475a3a801d5a0ea Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Sun, 12 Mar 2023 10:57:00 +0400
Subject: add an output comparison test

---
 test.sh | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100755 test.sh

diff --git a/test.sh b/test.sh
new file mode 100755
index 0000000..d6db5f5
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+trgrep_output_file="rust_output.txt"
+grep_output_file="grep_output.txt"
+
+function run_test {
+  local options="$1"
+
+  # Run trgrep and redirect its output to a file
+  cargo run --quiet -- $options > "$trgrep_output_file"
+
+  # Run the real grep and redirect its output to a file
+  grep $options > "$grep_output_file"
+
+  # Compare the two output files using diff
+  if diff "$trgrep_output_file" "$grep_output_file" >/dev/null ; then
+    echo "$options: passed"
+    return 0
+  else
+    echo "$options: FAILED"
+    return 1
+  fi
+}
+
+# Run some tests
+run_test "-v --ignore-case twinkle sample-files/poem.txt"
+run_test "-w 'apple' sample-files/words.txt"
+run_test "a sample-files/words.txt"
+run_test "-n 4 sample-files/numbers.txt"
+run_test "-h -n fil src/lib.rs src/main.rs"
+run_test "-l { src/lib.rs src/main.rs"
+run_test "-c -l l src/lib.rs src/main.rs"
+
+# Clean up
+rm -f $trgrep_output_file $grep_output_file
-- 
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