add simpler integration test for mactime2

Cargo.toml

@@ -162,4 +162,4 @@ matches = "0.1"
 # es4forensics
 assert-json-diff = "2.0"
 
-assert_cmd = "1"
+assert_cmd = "2"

tests/mactime2/autocomplete.rs

@@ -16,4 +16,4 @@ fn test_zsh() {
 fn test_fish() {
     let mut cmd = Command::cargo_bin("mactime2").unwrap();
     cmd.arg("--autocomplete").arg("fish").assert().success();
-}
+}

tests/mactime2/is_sorted.rs

@@ -0,0 +1,29 @@
+use std::{path::PathBuf, io::{BufReader, Cursor, BufRead}};
+
+use assert_cmd::Command;
+use more_asserts::assert_le;
+
+#[test]
+fn is_sorted() {
+    let mut cmd = Command::cargo_bin("mactime2").unwrap();
+    let mut data_path = PathBuf::from(std::env::var("CARGO_MANIFEST_DIR").unwrap());
+    data_path.push("tests");
+    data_path.push("data");
+    data_path.push("mactime2");
+    data_path.push("sample.bodyfile");
+
+    let result = cmd.arg("-d").arg("-b").arg(data_path).ok();
+    assert!(result.is_ok());
+
+    let reader = BufReader::new(Cursor::new(result.unwrap().stdout));
+    let mut previous_line = None;
+    for line in reader.lines().map_while(Result::ok) {
+        let comma_index = line.find(',').unwrap();
+        assert_eq!(comma_index, "2022-04-18T10:28:59+00:00".len());
+        let timestamp = line[..comma_index].to_owned();
+        if let Some(pv) = previous_line {
+            assert_le!(pv, timestamp);
+        }
+        previous_line = Some(timestamp);
+    }
+}

tests/mactime2/mod.rs

@@ -1,2 +1,3 @@
 mod help;
-mod autocomplete;
+mod autocomplete;
+mod is_sorted;