[wip] Draft tester program

The goal is to have a simple CLI that will repeatedly run sequence of
tests against a known (Rest-ish) API, until all tests are "green".

2 files changed, 61 insertions, 0 deletions

diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 442a9ac..8cece05 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -16,3 +16,7 @@ path = "src/lib.rs"
 [[bin]]
 name = "lambda"
 path = "src/main.rs"
+
+[[bin]]
+name = "tester"
+path = "src/tester.rs"
diff --git a/rust/src/tester.rs b/rust/src/tester.rs
new file mode 100644
index 0000000..15ca468
--- /dev/null
+++ b/rust/src/tester.rs
@@ -0,0 +1,57 @@
+use std::{
+    fs,
+    path::{Path, PathBuf},
+};
+
+pub fn main() {
+    let args: Vec<String> = std::env::args().collect();
+    if args.len() > 1 {
+        let run = traverse(&args)
+            .and_then(|paths| run_test(&paths))
+            .expect("Failed to traverse directory");
+        println!("{:?}", run)
+    }
+}
+
+fn traverse(args: &[String]) -> Result<Vec<PathBuf>, String> {
+    let mut files: Vec<PathBuf> = Vec::new();
+    for arg in args.iter().skip(1) {
+        let entries = fs::read_dir(arg).map_err(|e| e.to_string())?;
+        for entry in entries {
+            let dir = entry.map_err(|e| e.to_string())?;
+            let f = dir.metadata().map_err(|e| e.to_string())?;
+            if f.is_dir() {
+                files.push(dir.path());
+            }
+        }
+    }
+    Ok(files)
+}
+
+#[derive(Debug)]
+struct TestRun {
+    file: String,
+    test_result: bool,
+    duration: u64,
+}
+
+fn run_test(files: &Vec<PathBuf>) -> Result<Vec<TestRun>, String> {
+    let mut result = Vec::new();
+    for file in files {
+        let mut inp = file.clone();
+        let mut outp = file.clone();
+        inp.push("input");
+        outp.push("output");
+        let (test_result, duration) = run_test_case(&inp, &outp);
+        result.push(TestRun {
+            file: inp.as_path().to_str().unwrap().to_string(),
+            test_result,
+            duration,
+        });
+    }
+    Ok(result)
+}
+
+fn run_test_case(inp: &std::path::PathBuf, outp: &std::path::PathBuf) -> (bool, u64) {
+    (true, 1)
+}