add tests for all debug output variants and triggers

Author: cre4ture

tests/by-util/test_env.rs

@@ -8,6 +8,7 @@
 use crate::common::util::expected_result;
 use crate::common::util::TestScenario;
 use ::env::native_int_str::{Convert, NCvt};
+use regex::Regex;
 use std::env;
 use std::path::Path;
 use tempfile::tempdir;
@@ -55,6 +56,83 @@ fn test_if_windows_batch_files_can_be_executed() {
     assert!(result.stdout_str().contains("Hello Windows World!"));
 }
 
+#[test]
+fn test_debug_1() {
+    let ts = TestScenario::new(util_name!());
+    let result = ts
+        .ucmd()
+        .arg("-v")
+        .arg(&ts.bin_path)
+        .args(&["sleep", "0.1"])
+        .succeeds();
+    result.stderr_matches(
+        &Regex::new(concat!(
+            r"executing: [^\n]+/coreutils(.exe)?\n   arg\[0\]= '[^\n]+/coreutils(.exe)?'\n",
+            r"   arg\[1\]= 'sleep'\n   arg\[2\]= '0.1'"
+        ))
+        .unwrap(),
+    );
+}
+
+#[test]
+fn test_debug_2() {
+    let ts = TestScenario::new(util_name!());
+    let result = ts
+        .ucmd()
+        .arg("-vv")
+        .arg(ts.bin_path)
+        .args(&["sleep", "0.1"])
+        .succeeds();
+    result.stderr_matches(
+        &Regex::new(concat!(
+            r"input args:\narg\[0\]: 'env'\narg\[1\]: '-vv'\n",
+            r"arg\[2\]: '[^\n]+\/coreutils(.exe)?'\narg\[3\]: 'sleep'\narg\[4\]: '0.1'\n",
+            r"executing: [^\n]+\/coreutils(.exe)?\n   arg\[0\]= '[^\n]+\/coreutils(.exe)?'\n",
+            r"   arg\[1\]= 'sleep'\n   arg\[2\]= '0.1'"
+        ))
+        .unwrap(),
+    );
+}
+
+#[test]
+fn test_debug1_part_of_string_arg() {
+    let ts = TestScenario::new(util_name!());
+
+    let result = ts
+        .ucmd()
+        .arg("-vS FOO=BAR")
+        .arg(ts.bin_path)
+        .args(&["sleep", "0.1"])
+        .succeeds();
+    result.stderr_matches(
+        &Regex::new(concat!(
+            r"executing: [^\n]+/coreutils(.exe)?\n   arg\[0\]= '[^\n]+/coreutils(.exe)?'\n",
+            r"   arg\[1\]= 'sleep'\n   arg\[2\]= '0.1'"
+        ))
+        .unwrap(),
+    );
+}
+
+#[test]
+fn test_debug2_part_of_string_arg() {
+    let ts = TestScenario::new(util_name!());
+    let result = ts
+        .ucmd()
+        .arg("-vvS FOO=BAR")
+        .arg(ts.bin_path)
+        .args(&["sleep", "0.1"])
+        .succeeds();
+    result.stderr_matches(
+        &Regex::new(concat!(
+            r"input args:\narg\[0\]: 'env'\narg\[1\]: '-vvS FOO=BAR'\n",
+            r"arg\[2\]: '[^\n]+\/coreutils(.exe)?'\narg\[3\]: 'sleep'\narg\[4\]: '0.1'\n",
+            r"executing: [^\n]+\/coreutils(.exe)?\n   arg\[0\]= '[^\n]+\/coreutils(.exe)?'\n",
+            r"   arg\[1\]= 'sleep'\n   arg\[2\]= '0.1'"
+        ))
+        .unwrap(),
+    );
+}
+
 #[test]
 fn test_file_option() {
     let out = new_ucmd!()