From ea15a22b8460d1ee4d96b81193c947640a6d1162 Mon Sep 17 00:00:00 2001
From: Daniel Silverstone <dsilvers@digital-scurf.org>
Date: Fri, 18 Jun 2021 21:40:28 +0100
Subject: tests: Move bindings microbenchmark to an integration test

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
---
 tests/bindings-ubm.rs | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 tests/bindings-ubm.rs

(limited to 'tests')

diff --git a/tests/bindings-ubm.rs b/tests/bindings-ubm.rs
new file mode 100644
index 0000000..5e68ac1
--- /dev/null
+++ b/tests/bindings-ubm.rs
@@ -0,0 +1,55 @@
+// A micro-benchmark for the Bindings struct.
+//
+// The goal is to see how it deals with looking up a binding when
+// there are a large number of them.
+
+use regex::RegexBuilder;
+use std::collections::HashMap;
+use std::time::SystemTime;
+use subplot::{Binding, Bindings, ScenarioStep, StepKind};
+
+const N: i32 = 1000;
+
+#[test]
+fn bindings_microbenchmark() {
+    let time = SystemTime::now();
+
+    let mut texts = vec![];
+    for i in 0..N {
+        texts.push(format!("step {}", i));
+    }
+    let texted = time.elapsed().unwrap();
+
+    let mut re = vec![];
+    for t in texts.iter() {
+        re.push((
+            t,
+            RegexBuilder::new(&format!("^{}$", t))
+                .case_insensitive(false)
+                .build()
+                .unwrap(),
+        ));
+    }
+    let regexed = time.elapsed().unwrap();
+
+    let mut toadd = vec![];
+    for t in texts.iter() {
+        toadd.push(Binding::new(StepKind::Given, t, "func", None, false, HashMap::new()).unwrap());
+    }
+    let created = time.elapsed().unwrap();
+
+    let mut bindings = Bindings::new();
+    for binding in toadd {
+        bindings.add(binding);
+    }
+    let added = time.elapsed().unwrap();
+    let step = ScenarioStep::new(StepKind::Given, "given", &format!("step {}", N - 1));
+    bindings.find(&step).unwrap();
+    let found = time.elapsed().unwrap();
+
+    println!("texted: {}", texted.as_millis());
+    println!("regexed: {}", regexed.as_millis());
+    println!("created: {}", created.as_millis());
+    println!("added: {}", added.as_millis());
+    println!("found: {}", found.as_millis());
+}
-- 
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