FIX: Require at least one file for dbn CLI

databento · Dec 31, 2024 · 6f712bc · 6f712bc
1 parent 24e0111
commit 6f712bc
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/rust/dbn-cli/src/lib.rs b/rust/dbn-cli/src/lib.rs
@@ -37,6 +37,7 @@ pub struct Args {
         value_name = "FILE...",
         value_delimiter = ' ',
         num_args = 1..,
+        required = true,
     )]
     pub input: Vec<PathBuf>,
     #[clap(

diff --git a/rust/dbn-cli/tests/integration_tests.rs b/rust/dbn-cli/tests/integration_tests.rs
@@ -790,7 +790,16 @@ fn help() {
         .arg("--help")
         .assert()
         .success()
-        .stdout(contains("Usage:"));
+        .stdout(contains("Usage:"))
+        .stderr(is_empty());
+}
+
+#[test]
+fn empty() {
+    cmd().assert().failure().stdout(is_empty()).stderr(
+        contains("the following required arguments were not provided:\n  <FILE...>")
+            .and(contains("Usage:")),
+    );
 }
 
 #[test]
@@ -799,5 +808,6 @@ fn version() {
         .arg("--version")
         .assert()
         .success()
-        .stdout(contains(env!("CARGO_PKG_VERSION")));
+        .stdout(contains(env!("CARGO_PKG_VERSION")))
+        .stderr(is_empty());
 }