stat: Add tests

tests/test_stat.rs

@@ -0,0 +1,98 @@
+use common::util::*;
+
+static UTIL_NAME: &'static str = "stat";
+
+use std::process::Command;
+
+#[test]
+fn test_invalid_option() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    ucmd.arg("-w").arg("-q").arg("/");
+    ucmd.fails();
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_terse_fs_format() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["-f", "-t", "/proc"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_fs_format() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["-f", "--format=%n %i 0x%t %T", "/dev/shm"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, "/dev/shm 0 0x1021994 tmpfs\n");
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_terse_normal_format() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["-t", "/"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_normal_format() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["/boot"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_follow_symlink() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["-L", "/dev/cdrom"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_symlink() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["/dev/cdrom"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_char() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["/dev/zero"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_multi_files() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["/dev", "/usr/lib", "/etc/fstab", "/var"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, expected_result(&args));
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_printf() {
+    let (_, mut ucmd) = testing(UTIL_NAME);
+    let args = ["--printf=123%-# 15q\\r\\\"\\\\\\a\\b\\e\\f\\v%+020.23m\\x12\\167\\132\\112\\n", "/"];
+    ucmd.args(&args);
+    assert_eq!(ucmd.run().stdout, "123?\r\"\\\x07\x08\x1B\x0C\x0B                   /\x12wZJ\n");
+}
+
+fn expected_result(args: &[&str]) -> String {
+    let output = Command::new(UTIL_NAME).args(args).output().unwrap();
+    String::from_utf8_lossy(&output.stdout).into_owned()
+}