Replace the test added by #349 with a bench (#351)

CI environments can be noisy and while the test worked great
locally on my machine, it didn't on the CI environment.
This replaces the test with a (manually tracked) benchmark.
As per https://github.com/alexcrichton/toml-rs/pull/349#issuecomment-546998173

1 files changed, 0 insertions, 37 deletions

diff --git a/test-suite/tests/linear.rs b/test-suite/tests/linear.rs
deleted file mode 100644
index dab51f9..0000000
--- a/test-suite/tests/linear.rs
+++ /dev/null
@@ -1,37 +0,0 @@
-use std::time::{Duration, Instant};
-use toml::Value;
-
-const TOLERANCE: f64 = 2.0;
-
-fn measure_time(entries: usize, f: impl Fn(usize) -> String) -> Duration {
-    let start = Instant::now();
-    let mut s = String::new();
-    for i in 0..entries {
-        s += &f(i);
-        s += "entry = 42\n"
-    }
-    s.parse::<Value>().unwrap();
-    Instant::now() - start
-}
-
-#[test]
-fn linear_increase_map() {
-    let time_1 = measure_time(100, |i| format!("[header_no_{}]\n", i));
-    let time_4 = measure_time(400, |i| format!("[header_no_{}]\n", i));
-    dbg!(time_1, time_4);
-    // Now ensure that the deserialization time has increased linearly
-    // (within a tolerance interval) instead of, say, quadratically
-    assert!(time_4 > time_1.mul_f64(4.0 - TOLERANCE));
-    assert!(time_4 < time_1.mul_f64(4.0 + TOLERANCE));
-}
-
-#[test]
-fn linear_increase_array() {
-    let time_1 = measure_time(100, |i| format!("[[header_no_{}]]\n", i));
-    let time_4 = measure_time(400, |i| format!("[[header_no_{}]]\n", i));
-    dbg!(time_1, time_4);
-    // Now ensure that the deserialization time has increased linearly
-    // (within a tolerance interval) instead of, say, quadratically
-    assert!(time_4 > time_1.mul_f64(4.0 - TOLERANCE));
-    assert!(time_4 < time_1.mul_f64(4.0 + TOLERANCE));
-}