From 557392fe0672bc6b83ef2e0fec2c8ff7a6f22a54 Mon Sep 17 00:00:00 2001
From: Determinant <tederminant@gmail.com>
Date: Wed, 10 Jun 2020 22:35:21 -0400
Subject: fix bugs in dealing with long WAL rings

---
 tests/rand_fail.rs | 65 +++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 50 insertions(+), 15 deletions(-)

(limited to 'tests/rand_fail.rs')

diff --git a/tests/rand_fail.rs b/tests/rand_fail.rs
index b4e30ac..0cd519c 100644
--- a/tests/rand_fail.rs
+++ b/tests/rand_fail.rs
@@ -1,26 +1,61 @@
 #[cfg(test)]
 
-extern crate growthring;
-use growthring::wal::{WALLoader, WALWriter, WALStore, WALRingId, WALBytes};
-
 mod common;
+use growthring::wal::{WALLoader, WALWriter, WALStore, WALRingId, WALBytes, WALPos};
+use common::{FailGen, SingleFailGen, Canvas, WALStoreEmulState, WALStoreEmul, PaintStrokes};
 
-fn test<S: WALStore>(records: Vec<String>, wal: &mut WALWriter<S>) -> Box<[WALRingId]> {
-    let records: Vec<WALBytes> = records.into_iter().map(|s| s.into_bytes().into_boxed_slice()).collect();
-    let ret = wal.grow(&records).unwrap();
-    for ring_id in ret.iter() {
-        println!("got ring id: {:?}", ring_id);
+fn run<F: WALStore, R: rand::Rng>(n: usize, m: usize, k: usize,
+                    canvas: &mut Canvas, wal: &mut WALWriter<F>, trace: &mut Vec<u32>,
+                    rng: &mut R) -> Result<(), ()> {
+    for i in 0..n {
+        let s = (0..m).map(|_|
+            PaintStrokes::gen_rand(1000, 10, 256, 5, rng)).collect::<Vec<PaintStrokes>>();
+        let recs = s.iter().map(|e| e.to_bytes()).collect::<Vec<WALBytes>>();
+        // write ahead
+        let rids = wal.grow(recs)?;
+        for rid in rids.iter() {
+            println!("got ring id: {:?}", rid);
+        }
+        // WAL append done
+        // prepare data writes
+        for (e, rid) in s.iter().zip(rids.iter()) {
+            canvas.prepaint(e, &*rid)
+        }
+        // run the scheduler for a bit
+        for _ in 0..k {
+            if let Some((fin_rid, t)) = canvas.rand_paint(rng) {
+                if let Some(rid) = fin_rid {
+                    wal.peel(&[rid])?
+                }
+                trace.push(t);
+            } else { break }
+        }
+    }
+    while let Some((fin_rid, t)) = canvas.rand_paint(rng) {
+        if let Some(rid) = fin_rid {
+            wal.peel(&[rid])?
+        }
+        trace.push(t);
     }
-    ret
+    canvas.print(40);
+    Ok(())
+}
+
+fn check<F: WALStore>(canvas: &mut Canvas, wal: &mut WALLoader<F>, trace: &Vec<u8>) -> bool {
+    true
 }
 
 #[test]
 fn test_rand_fail() {
-    let fgen = common::SingleFailGen::new(100);
-    let mut state = common::WALStoreEmulState::new();
-    let mut wal = WALLoader::new(common::WALStoreEmul::new(&mut state, fgen), 9, 8, 1000).recover().unwrap();
-    for _ in 0..3 {
-        test(["hi", "hello", "lol"].iter().map(|s| s.to_string()).collect::<Vec<String>>(), &mut wal);
-    }
+    let fgen = SingleFailGen::new(100000);
+    let n = 100;
+    let m = 10;
+    let k = 100;
+    let mut rng = rand::thread_rng();
+    let mut state = WALStoreEmulState::new();
+    let mut wal = WALLoader::new(WALStoreEmul::new(&mut state, fgen), 9, 8, 1000).recover().unwrap();
+    let mut trace: Vec<u32> = Vec::new();
+    let mut canvas = Canvas::new(1000);
+    run(n, m, k, &mut canvas, &mut wal, &mut trace, &mut rng).unwrap();
     WALLoader::new(common::WALStoreEmul::new(&mut state, common::ZeroFailGen), 9, 8, 1000).recover().unwrap();
 }
-- 
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