feat: pretify_log utilit

package/prettify-log/test/fixture/expected.log

@@ -0,0 +1,87 @@
+Debug: respons {
+  "some": "name",
+  "value": 12
+} is received
+{timespan} Info: some log without json
+Error: {
+  "code": 500,
+  "error": "Something went wrong"
+}
+Warning: Invalid data format detected
+{
+  "data": {
+    "id": 1,
+    "name": "test"
+  },
+  "status": "ok"
+}
+User log: {
+  "action": "login",
+  "timestamp": "2025-01-31T12:00:00Z",
+  "user": "john_doe"
+}
+Random text without json
+Debug: Payload sent: {
+  "request": {
+    "body": {
+      "key": "value"
+    },
+    "type": "POST"
+  }
+}
+Another line with no json
+{meta} Log: {"action": "update", "success": true}
+Normal message with {
+  "json": "inside"
+} text
+{
+  "array": [
+    1,
+    2,
+    3
+  ],
+  "nested": {
+    "deep": {
+      "value": "found"
+    }
+  }
+}
+{2025-01-31} Event: {"event": "created", "user": "admin"}
+Plain text that should not be modified
+Info: {
+  "details": "this is a test log",
+  "level": "info"
+}
+{
+  "array": [
+    {
+      "id": 1
+    },
+    {
+      "id": 2
+    },
+    {
+      "id": 3
+    }
+  ]
+}
+An unformatted json log {
+  "name": "example",
+  "valid": true
+}
+Debug: {
+  "data": "test",
+  "items": [
+    {
+      "x": 10,
+      "y": 20
+    }
+  ]
+}
+Non-json message with curly braces {like this}
+{
+  "key1": "value1",
+  "key2": {
+    "subkey": "subvalue"
+  }
+}

package/prettify-log/test/fixture/test.log

@@ -0,0 +1,20 @@
+Debug: respons {"some": "name", "value": 12} is received
+{timespan} Info: some log without json
+Error: {"error": "Something went wrong", "code": 500}
+Warning: Invalid data format detected
+{"status": "ok", "data": {"id": 1, "name": "test"}}
+User log: {"user": "john_doe", "action": "login", "timestamp": "2025-01-31T12:00:00Z"}
+Random text without json
+Debug: Payload sent: {"request": {"type": "POST", "body": {"key": "value"}}}
+Another line with no json
+{meta} Log: {"action": "update", "success": true}
+Normal message with {"json": "inside"} text
+{"nested": {"deep": {"value": "found"}}, "array": [1,2,3]}
+{2025-01-31} Event: {"event": "created", "user": "admin"}
+Plain text that should not be modified
+Info: {"level": "info", "details": "this is a test log"}
+{"array": [{"id": 1}, {"id": 2}, {"id": 3}]}
+An unformatted json log {"name":"example","valid":true}
+Debug: {"data": "test", "items": [{"x": 10, "y": 20}]}
+Non-json message with curly braces {like this}
+{"key1": "value1", "key2": {"subkey": "subvalue"}}

package/prettify-log/test/prettify.rs

@@ -0,0 +1,36 @@
+use std::fs;
+use std::process::Command;
+use std::io::Write;
+use tempfile::NamedTempFile;
+
+#[test]
+fn test_prettify() {
+    let input_file = "test/fixture/test.log";
+    let expected_output = fs::read_to_string("test/fixture/expected.log")
+        .expect("Failed to read expected.log");
+
+    let mut actual_output_file = NamedTempFile::new().expect("Failed to create temp file");
+
+    let output = Command::new("cargo")
+        .args(&["run", "--quiet"])
+        .stdin(fs::File::open(input_file).expect("Failed to open test.log"))
+        .output()
+        .expect("Failed to run prettify_logs");
+
+    assert!(output.status.success());
+
+    actual_output_file
+        .write_all(&output.stdout)
+        .expect("Failed to write output");
+
+    let actual_output = String::from_utf8_lossy(&output.stdout);
+
+    assert_eq!(actual_output.trim(), expected_output.trim(), "Output does not match expected.log");
+
+    if actual_output.trim() != expected_output.trim() {
+        eprintln!(
+            "Test failed! Actual output saved to: {}",
+            actual_output_file.path().display()
+        );
+    }
+}