author | alfadur |
Fri, 07 Dec 2018 18:32:36 +0300 | |
changeset 14380 | cc99f7c673c7 |
parent 14379 | e5db279308d7 |
permissions | -rw-r--r-- |
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use crate::{ |
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server::{actions::Action, core::HWServer}, |
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protocol::messages::{ |
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HWProtocolMessage::{self, Rnd}, HWServerMessage::{self, ChatMsg}, |
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} |
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Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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}; |
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use rand::{self, Rng, thread_rng}; |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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pub fn rnd_reply(options: &[String]) -> HWServerMessage { |
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let mut rng = thread_rng(); |
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let reply = if options.is_empty() { |
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(*rng.choose(&["heads", "tails"]).unwrap()).to_owned() |
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Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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diff
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} else { |
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rng.choose(&options).unwrap().clone() |
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}; |
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d3c86ade3d4d
Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13449
diff
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ChatMsg { |
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914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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nick: "[random]".to_owned(), |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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msg: reply.clone(), |
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} |
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914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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} |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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#[cfg(test)] |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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mod tests { |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
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use super::*; |
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use crate::protocol::messages::HWServerMessage::ChatMsg; |
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use crate::server::actions::{ |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
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Action::{self, Send}, PendingMessage, |
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Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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}; |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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|
13450
d3c86ade3d4d
Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13449
diff
changeset
|
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fn reply2string(r: HWServerMessage) -> String { |
d3c86ade3d4d
Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13449
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match r { |
d3c86ade3d4d
Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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ChatMsg { msg: p, .. } => String::from(p), |
d3c86ade3d4d
Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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_ => panic!("expected a ChatMsg"), |
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Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
|
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} |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
|
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} |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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fn run_handle_test(opts: Vec<String>) { |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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let opts2 = opts.clone(); |
914f9b970f4d
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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for opt in opts { |
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while reply2string(rnd_reply(&opts2)) != opt {} |
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914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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} |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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} |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
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/// This test terminates almost surely. |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
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#[test] |
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parents:
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fn test_handle_rnd_empty() { |
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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run_handle_test(vec![]) |
914f9b970f4d
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Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
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} |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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13451
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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/// This test terminates almost surely. |
13449
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
|
52 |
#[test] |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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fn test_handle_rnd_nonempty() { |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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run_handle_test(vec!["A".to_owned(), "B".to_owned(), "C".to_owned()]) |
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
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} |
13451
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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/// This test terminates almost surely (strong law of large numbers) |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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#[test] |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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fn test_distribution() { |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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diff
changeset
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let eps = 0.000001; |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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let lim = 0.5; |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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let opts = vec![0.to_string(), 1.to_string()]; |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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let mut ones = 0; |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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let mut tries = 0; |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
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dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
|
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while tries < 1000 || ((ones as f64 / tries as f64) - lim).abs() >= eps { |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
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tries += 1; |
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if reply2string(rnd_reply(&opts)) == 1.to_string() { |
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dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
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ones += 1; |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
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diff
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} |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
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} |
dd2e51f7303d
Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
13450
diff
changeset
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} |
13449
914f9b970f4d
Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff
changeset
|
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} |