test: Error messages

Author: KSXGitHub

tests/cli_errors.rs

@@ -0,0 +1,66 @@
+#![cfg(feature = "cli")]
+
+pub mod _utils;
+pub use _utils::*;
+
+use command_extra::CommandExtra;
+use pipe_trait::Pipe;
+use pretty_assertions::assert_eq;
+use std::process::{Command, Output, Stdio};
+
+fn stdio(command: Command) -> Command {
+    command
+        .with_stdin(Stdio::null())
+        .with_stdout(Stdio::piped())
+        .with_stderr(Stdio::piped())
+}
+
+#[test]
+fn min_ratio_1() {
+    let workspace = SampleWorkspace::default();
+    let Output {
+        status,
+        stdout,
+        stderr,
+    } = Command::new(PDU)
+        .with_current_dir(workspace.as_path())
+        .with_arg("--min-ratio=1")
+        .pipe(stdio)
+        .output()
+        .expect("spawn command");
+    let stderr = String::from_utf8(stderr).expect("parse stderr as UTF-8");
+    let stderr = stderr.trim();
+    dbg!(&status);
+    eprintln!("STDERR:\n{}\n", stderr);
+    assert!(!status.success());
+    assert_eq!(
+        stderr,
+        "error: Invalid value for '--min-ratio <min-ratio>': greater than or equal to 1"
+    );
+    assert_eq!(&stdout, &[] as &[u8]);
+}
+
+#[test]
+fn max_depth_0() {
+    let workspace = SampleWorkspace::default();
+    let Output {
+        status,
+        stdout,
+        stderr,
+    } = Command::new(PDU)
+        .with_current_dir(workspace.as_path())
+        .with_arg("--max-depth=0")
+        .pipe(stdio)
+        .output()
+        .expect("spawn command");
+    let stderr = String::from_utf8(stderr).expect("parse stderr as UTF-8");
+    let stderr = stderr.trim();
+    dbg!(&status);
+    eprintln!("STDERR:\n{}\n", stderr);
+    assert!(!status.success());
+    assert_eq!(
+        stderr,
+        "error: Invalid value for '--max-depth <max-depth>': number would be zero for non-zero type"
+    );
+    assert_eq!(&stdout, &[] as &[u8]);
+}