cli: fix options with arguments, add tests

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This commit is contained in:
Wolfgang Bumiller 2019-06-17 15:01:46 +02:00
parent a5af6eedf7
commit 85a29246d5
2 changed files with 57 additions and 14 deletions

View File

@ -180,20 +180,20 @@ impl<Body: 'static> Method<Body> {
loop { loop {
match next_arg(&mut args) { match next_arg(&mut args) {
Some(Arg::Opt(arg)) => { Some(Arg::Opt(arg)) => {
if let Some(arg) = current_option { if let Some(arg) = current_option.take() {
self.add_parameter(&mut params, arg, None)?; self.add_parameter(&mut params, arg, None)?;
} }
current_option = Some(arg); current_option = Some(arg);
} }
Some(Arg::OptArg(arg, value)) => { Some(Arg::OptArg(arg, value)) => {
if let Some(arg) = current_option { if let Some(arg) = current_option.take() {
self.add_parameter(&mut params, arg, None)?; self.add_parameter(&mut params, arg, None)?;
} }
self.add_parameter(&mut params, arg, Some(value))?; self.add_parameter(&mut params, arg, Some(value))?;
} }
Some(Arg::Positional(value)) => match current_option { Some(Arg::Positional(value)) => match current_option.take() {
Some(arg) => self.add_parameter(&mut params, arg, Some(value))?, Some(arg) => self.add_parameter(&mut params, arg, Some(value))?,
None => match positionals.next() { None => match positionals.next() {
Some(arg) => self.add_parameter(&mut params, arg, Some(value))?, Some(arg) => self.add_parameter(&mut params, arg, Some(value))?,
@ -201,7 +201,7 @@ impl<Body: 'static> Method<Body> {
}, },
}, },
None => { None => {
if let Some(arg) = current_option { if let Some(arg) = current_option.take() {
self.add_parameter(&mut params, arg, None)?; self.add_parameter(&mut params, arg, None)?;
} }
break; break;

View File

@ -17,28 +17,71 @@ fn simple() {
cli::Command::method(simple_method, &["foo", "bar"]), cli::Command::method(simple_method, &["foo", "bar"]),
); );
let result = cli check_cli(&cli, &["new", "--foo=FOO", "--bar=BAR"], Ok("FOO:BAR"));
.run(&["new", "--foo=FOO", "--bar=BAR"]) check_cli(&cli, &["new", "--foo", "FOO", "--bar=BAR"], Ok("FOO:BAR"));
.expect("command should execute successfully"); check_cli(&cli, &["new", "--foo", "FOO", "--bar", "BAR"], Ok("FOO:BAR"));
let body = check_cli(&cli, &["new", "--foo=FOO"], Err("missing parameter: 'bar'"));
std::str::from_utf8(result.body().as_ref()).expect("expected a valid utf8 repsonse body"); check_cli(&cli, &["new", "--bar=BAR"], Err("missing parameter: 'foo'"));
assert_eq!(body, "FOO:BAR"); check_cli(&cli, &["new"], Err("missing parameter: 'foo'"));
check_cli(&cli, &["newfoo", "POSFOO"], Err("missing parameter: 'bar'"));
check_cli(&cli, &["newfoo", "POSFOO", "--bar=BAR"], Ok("POSFOO:BAR"));
check_cli(&cli, &["newfoo", "--bar=BAR", "POSFOO"], Ok("POSFOO:BAR"));
check_cli(&cli, &["newfoo", "--bar=BAR"], Err("missing positional parameters: foo"));
check_cli(&cli, &["newbar", "POSBAR"], Err("missing parameter: 'foo'"));
check_cli(&cli, &["newbar", "POSBAR", "--foo=ABC"], Ok("ABC:POSBAR"));
check_cli(&cli, &["newbar", "--foo=ABC", "POSBAR"], Ok("ABC:POSBAR"));
check_cli(&cli, &["newbar", "--foo=ABC"], Err("missing positional parameters: bar"));
check_cli(&cli, &["newfoo", "FOO1", "--foo=FOO2", "--bar=BAR", "--baz=OMG"], Ok("FOO2:BAR:OMG"));
}
fn check_cli(cli: &cli::App<Bytes>, args: &[&str], expect: Result<&str, &str>) {
match (cli.run(args), expect) {
(Ok(result), Ok(expect)) => {
let body = std::str::from_utf8(result.body().as_ref())
.expect("expected a valid utf8 repsonse body");
assert_eq!(body, expect, "expected successful CLI invocation");
}
(Err(result), Err(expected)) => {
let result = result.to_string();
assert_eq!(result, expected, "expected specific error message");
}
(Ok(result), Err(err)) => {
match std::str::from_utf8(result.body().as_ref()) {
Ok(value) => panic!("expected error '{}', got success with value '{}'", err, value),
Err(_) => panic!("expected error '{}', got success with non-utf8 string", err),
}
}
(Err(err), Ok(expected)) => {
let err = err.to_string();
panic!("expected success with value '{}', got error '{}'", expected, err);
}
}
} }
mod methods { mod methods {
use bytes::Bytes; use bytes::Bytes;
use failure::{format_err, Error};
use http::Response; use http::Response;
use lazy_static::lazy_static; use lazy_static::lazy_static;
use serde_json::Value; use serde_json::Value;
use proxmox_api::{get_type_info, ApiFuture, ApiMethod, ApiOutput, ApiType, Parameter}; use proxmox_api::{get_type_info, ApiFuture, ApiMethod, ApiOutput, ApiType, Parameter};
fn required_str<'a>(value: &'a Value, name: &'static str) -> Result<&'a str, Error> {
value[name].as_str().ok_or_else(|| format_err!("missing parameter: '{}'", name))
}
pub async fn simple_method(value: Value) -> ApiOutput<Bytes> { pub async fn simple_method(value: Value) -> ApiOutput<Bytes> {
let foo = value["foo"].as_str().unwrap(); let foo = required_str(&value, "foo")?;
let bar = required_str(&value, "bar")?;
let bar = value["bar"].as_str().unwrap(); let baz = value
.get("baz")
let baz = value.get("baz").map(|value| value.as_str().unwrap()); .map(|value| value.as_str().ok_or_else(|| format_err!("'baz' must be a string")))
.transpose()?;
let output = match baz { let output = match baz {
Some(baz) => format!("{}:{}:{}", foo, bar, baz), Some(baz) => format!("{}:{}:{}", foo, bar, baz),