tests ~ reorganize tests

tests/by-util/test_env.rs

@@ -0,0 +1,152 @@
+use crate::common::util::*;
+
+#[test]
+fn test_env_help() {
+    assert!(new_ucmd!()
+        .arg("--help")
+        .succeeds()
+        .no_stderr()
+        .stdout
+        .contains("OPTIONS:"));
+}
+
+#[test]
+fn test_env_version() {
+    assert!(new_ucmd!()
+        .arg("--version")
+        .succeeds()
+        .no_stderr()
+        .stdout
+        .contains(util_name!()));
+}
+
+#[test]
+fn test_echo() {
+    // assert!(new_ucmd!().arg("printf").arg("FOO-bar").succeeds().no_stderr().stdout.contains("FOO-bar"));
+    let mut cmd = new_ucmd!();
+    cmd.arg("echo").arg("FOO-bar");
+    println!("cmd={:?}", cmd);
+
+    let result = cmd.run();
+    println!("success={:?}", result.success);
+    println!("stdout={:?}", result.stdout);
+    println!("stderr={:?}", result.stderr);
+    assert!(result.success);
+
+    let out = result.stdout.trim_end();
+
+    assert_eq!(out, "FOO-bar");
+}
+
+#[test]
+fn test_file_option() {
+    let out = new_ucmd!().arg("-f").arg("vars.conf.txt").run().stdout;
+
+    assert_eq!(
+        out.lines()
+            .filter(|&line| line == "FOO=bar" || line == "BAR=bamf this")
+            .count(),
+        2
+    );
+}
+
+#[test]
+fn test_combined_file_set() {
+    let out = new_ucmd!()
+        .arg("-f")
+        .arg("vars.conf.txt")
+        .arg("FOO=bar.alt")
+        .run()
+        .stdout;
+
+    assert_eq!(out.lines().filter(|&line| line == "FOO=bar.alt").count(), 1);
+}
+
+#[test]
+fn test_combined_file_set_unset() {
+    let out = new_ucmd!()
+        .arg("-u")
+        .arg("BAR")
+        .arg("-f")
+        .arg("vars.conf.txt")
+        .arg("FOO=bar.alt")
+        .run()
+        .stdout;
+
+    assert_eq!(
+        out.lines()
+            .filter(|&line| line == "FOO=bar.alt" || line.starts_with("BAR="))
+            .count(),
+        1
+    );
+}
+
+#[test]
+fn test_single_name_value_pair() {
+    let out = new_ucmd!().arg("FOO=bar").run().stdout;
+
+    assert!(out.lines().any(|line| line == "FOO=bar"));
+}
+
+#[test]
+fn test_multiple_name_value_pairs() {
+    let out = new_ucmd!().arg("FOO=bar").arg("ABC=xyz").run().stdout;
+
+    assert_eq!(
+        out.lines()
+            .filter(|&line| line == "FOO=bar" || line == "ABC=xyz")
+            .count(),
+        2
+    );
+}
+
+#[test]
+fn test_ignore_environment() {
+    let scene = TestScenario::new(util_name!());
+
+    let out = scene.ucmd().arg("-i").run().stdout;
+
+    assert_eq!(out, "");
+
+    let out = scene.ucmd().arg("-").run().stdout;
+
+    assert_eq!(out, "");
+}
+
+#[test]
+fn test_null_delimiter() {
+    let out = new_ucmd!()
+        .arg("-i")
+        .arg("--null")
+        .arg("FOO=bar")
+        .arg("ABC=xyz")
+        .run()
+        .stdout;
+
+    let mut vars: Vec<_> = out.split('\0').collect();
+    assert_eq!(vars.len(), 3);
+    vars.sort();
+    assert_eq!(vars[0], "");
+    assert_eq!(vars[1], "ABC=xyz");
+    assert_eq!(vars[2], "FOO=bar");
+}
+
+#[test]
+fn test_unset_variable() {
+    // This test depends on the HOME variable being pre-defined by the
+    // default shell
+    let out = TestScenario::new(util_name!())
+        .ucmd_keepenv()
+        .arg("-u")
+        .arg("HOME")
+        .run()
+        .stdout;
+
+    assert_eq!(out.lines().any(|line| line.starts_with("HOME=")), false);
+}
+
+#[test]
+fn test_fail_null_with_program() {
+    let out = new_ucmd!().arg("--null").arg("cd").fails().stderr;
+    assert!(out.contains("cannot specify --null (-0) with command"));
+}