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-rw-r--r--test-suite/benches/linear.rs35
1 files changed, 35 insertions, 0 deletions
diff --git a/test-suite/benches/linear.rs b/test-suite/benches/linear.rs
new file mode 100644
index 0000000..1553595
--- /dev/null
+++ b/test-suite/benches/linear.rs
@@ -0,0 +1,35 @@
+// Regressoion test for https://github.com/alexcrichton/toml-rs/issues/342
+
+use bencher::{benchmark_group, benchmark_main, black_box, Bencher};
+use toml::Value;
+
+fn parse(bench: &mut Bencher, entries: usize, f: impl Fn(usize) -> String) {
+ let mut s = String::new();
+ for i in 0..entries {
+ s += &f(i);
+ s += "entry = 42\n"
+ }
+ let s = black_box(s);
+ bench.iter(|| {
+ black_box(s.parse::<Value>().unwrap());
+ })
+}
+
+fn map_10(bench: &mut Bencher) {
+ parse(bench, 10, |i| format!("[header_no_{}]\n", i))
+}
+
+fn map_100(bench: &mut Bencher) {
+ parse(bench, 100, |i| format!("[header_no_{}]\n", i))
+}
+
+fn array_10(bench: &mut Bencher) {
+ parse(bench, 10, |_i| "[[header]]\n".to_owned())
+}
+
+fn array_100(bench: &mut Bencher) {
+ parse(bench, 100, |_i| "[[header]]\n".to_owned())
+}
+
+benchmark_group!(benches, map_10, map_100, array_10, array_100);
+benchmark_main!(benches);