test(complete): Show empty option-value behavior

clap_complete/tests/testsuite/bash.rs

@@ -175,6 +175,11 @@ fn complete() {
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
 
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str!["exhaustive --empty=     % exhaustive --empty="];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+
     // Issue 5239 (https://github.com/clap-rs/clap/issues/5239)
     let input = "exhaustive hint --file test\t";
     let expected = snapbox::str!["exhaustive hint --file test     % exhaustive hint --file tests/"];
@@ -358,3 +363,20 @@ fn complete_dynamic_empty_subcommand() {
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
 }
+
+#[test]
+#[cfg(all(unix, feature = "unstable-dynamic"))]
+#[cfg(feature = "unstable-shell-tests")]
+fn complete_dynamic_empty_option_value() {
+    if !common::has_command(CMD) {
+        return;
+    }
+
+    let term = completest::Term::new();
+    let mut runtime = common::load_runtime::<RuntimeBuilder>("dynamic-env", "exhaustive");
+
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str!["exhaustive --empty=     % exhaustive --empty="];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+}

clap_complete/tests/testsuite/elvish.rs

@@ -186,6 +186,14 @@ value          value
     let expected = snapbox::str![[r#"
 no candidates
 % exhaustive empty 
+"#]];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str![[r#"
+no candidates
+% exhaustive --empty=
 "#]];
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
@@ -323,3 +331,23 @@ no candidates
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
 }
+
+#[test]
+#[cfg(all(unix, feature = "unstable-dynamic"))]
+#[cfg(feature = "unstable-shell-tests")]
+fn complete_dynamic_empty_option_value() {
+    if !common::has_command(CMD) {
+        return;
+    }
+
+    let term = completest::Term::new();
+    let mut runtime = common::load_runtime::<RuntimeBuilder>("dynamic-env", "exhaustive");
+
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str![[r#"
+no candidates
+% exhaustive --empty=
+"#]];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+}

clap_complete/tests/testsuite/fish.rs

@@ -178,6 +178,11 @@ CHANGELOG.md  examples/        LICENSE-MIT     src/
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
 
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str!["% exhaustive --empty="];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+
     let input = "exhaustive quote --choice \t";
     let actual = runtime.complete(input, &term).unwrap();
     let expected = snapbox::str![[r#"
@@ -317,3 +322,20 @@ fn complete_dynamic_empty_subcommand() {
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
 }
+
+#[test]
+#[cfg(all(unix, feature = "unstable-dynamic"))]
+#[cfg(feature = "unstable-shell-tests")]
+fn complete_dynamic_empty_option_value() {
+    if !common::has_command(CMD) {
+        return;
+    }
+
+    let term = completest::Term::new();
+    let mut runtime = common::load_runtime::<RuntimeBuilder>("dynamic-env", "exhaustive");
+
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str!["% exhaustive --empty="];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+}

clap_complete/tests/testsuite/zsh.rs

@@ -175,6 +175,11 @@ pacman  action  global  alias  value  quote  empty  last  --
     let expected = snapbox::str!["% exhaustive empty "];
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
+
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str!["% exhaustive --empty="];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
 }
 
 #[test]
@@ -306,3 +311,20 @@ fn complete_dynamic_empty_subcommand() {
     let actual = runtime.complete(input, &term).unwrap();
     assert_data_eq!(actual, expected);
 }
+
+#[test]
+#[cfg(all(unix, feature = "unstable-dynamic"))]
+#[cfg(feature = "unstable-shell-tests")]
+fn complete_dynamic_empty_option_value() {
+    if !common::has_command(CMD) {
+        return;
+    }
+
+    let term = completest::Term::new();
+    let mut runtime = common::load_runtime::<RuntimeBuilder>("dynamic-env", "exhaustive");
+
+    let input = "exhaustive --empty=\t";
+    let expected = snapbox::str!["% exhaustive --empty="];
+    let actual = runtime.complete(input, &term).unwrap();
+    assert_data_eq!(actual, expected);
+}