New upstream version 1.52.1+dfsg1

[rustc.git] / vendor / structopt / tests / flatten.rs

diff --git a/vendor/structopt/tests/flatten.rs b/vendor/structopt/tests/flatten.rs
new file mode 100644 (file)
index 0000000..05de185
--- /dev/null
+++ b/vendor/structopt/tests/flatten.rs
@@ -0,0 +1,182 @@
+// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use structopt::StructOpt;
+
+mod utils;
+
+#[test]
+fn flatten() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Common {
+        arg: i32,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Opt {
+        #[structopt(flatten)]
+        common: Common,
+    }
+    assert_eq!(
+        Opt {
+            common: Common { arg: 42 }
+        },
+        Opt::from_iter(&["test", "42"])
+    );
+    assert!(Opt::clap().get_matches_from_safe(&["test"]).is_err());
+    assert!(Opt::clap()
+        .get_matches_from_safe(&["test", "42", "24"])
+        .is_err());
+}
+
+#[test]
+#[should_panic]
+fn flatten_twice() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Common {
+        arg: i32,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Opt {
+        #[structopt(flatten)]
+        c1: Common,
+        // Defines "arg" twice, so this should not work.
+        #[structopt(flatten)]
+        c2: Common,
+    }
+    Opt::from_iter(&["test", "42", "43"]);
+}
+
+#[test]
+fn flatten_in_subcommand() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Common {
+        arg: i32,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Add {
+        #[structopt(short)]
+        interactive: bool,
+        #[structopt(flatten)]
+        common: Common,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    enum Opt {
+        Fetch {
+            #[structopt(short)]
+            all: bool,
+            #[structopt(flatten)]
+            common: Common,
+        },
+
+        Add(Add),
+    }
+
+    assert_eq!(
+        Opt::Fetch {
+            all: false,
+            common: Common { arg: 42 }
+        },
+        Opt::from_iter(&["test", "fetch", "42"])
+    );
+    assert_eq!(
+        Opt::Add(Add {
+            interactive: true,
+            common: Common { arg: 43 }
+        }),
+        Opt::from_iter(&["test", "add", "-i", "43"])
+    );
+}
+
+#[test]
+fn merge_subcommands_with_flatten() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    enum BaseCli {
+        Command1(Command1),
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Command1 {
+        arg1: i32,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Command2 {
+        arg2: i32,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    enum Opt {
+        #[structopt(flatten)]
+        BaseCli(BaseCli),
+        Command2(Command2),
+    }
+
+    assert_eq!(
+        Opt::BaseCli(BaseCli::Command1(Command1 { arg1: 42 })),
+        Opt::from_iter(&["test", "command1", "42"])
+    );
+    assert_eq!(
+        Opt::Command2(Command2 { arg2: 43 }),
+        Opt::from_iter(&["test", "command2", "43"])
+    );
+}
+
+#[test]
+#[should_panic = "structopt misuse: You likely tried to #[flatten] a struct \
+                  that contains #[subcommand]. This is forbidden."]
+fn subcommand_in_flatten() {
+    #[derive(Debug, StructOpt)]
+    pub enum Struct1 {
+        #[structopt(flatten)]
+        Struct1(Struct2),
+    }
+
+    #[derive(Debug, StructOpt)]
+    pub struct Struct2 {
+        #[structopt(subcommand)]
+        command_type: Enum3,
+    }
+
+    #[derive(Debug, StructOpt)]
+    pub enum Enum3 {
+        Command { args: Vec<String> },
+    }
+
+    Struct1::from_iter(&["test", "command", "foo"]);
+}
+
+#[test]
+fn flatten_doc_comment() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Common {
+        /// This is an arg. Arg means "argument". Command line argument.
+        arg: i32,
+    }
+
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Opt {
+        /// The very important comment that clippy had me put here.
+        /// It knows better.
+        #[structopt(flatten)]
+        common: Common,
+    }
+    assert_eq!(
+        Opt {
+            common: Common { arg: 42 }
+        },
+        Opt::from_iter(&["test", "42"])
+    );
+
+    let help = utils::get_help::<Opt>();
+    assert!(help.contains("This is an arg."));
+    assert!(!help.contains("The very important"));
+}