Add quickcheck (#1574)

* Move uptime to being a duration value

* Adds our first quickcheck test

Cargo.lock

@@ -2098,6 +2098,8 @@ dependencies = [
  "prettytable-rs",
  "ptree",
  "query_interface",
+ "quickcheck",
+ "quickcheck_macros",
  "rand",
  "regex",
  "roxmltree",
@@ -2848,6 +2850,29 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "quickcheck"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a44883e74aa97ad63db83c4bf8ca490f02b2fc02f92575e720c8551e843c945f"
+dependencies = [
+ "env_logger",
+ "log",
+ "rand",
+ "rand_core",
+]
+
+[[package]]
+name = "quickcheck_macros"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "608c156fd8e97febc07dc9c2e2c80bf74cfc6ef26893eae3daf8bc2bc94a4b7f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.2"

crates/nu-cli/Cargo.toml

@@ -97,6 +97,10 @@ features = ["bundled", "blob"]
 [build-dependencies]
 nu-build = { version = "0.12.0", path = "../nu-build" }
 
+[dev-dependencies]
+quickcheck = "0.9"
+quickcheck_macros = "0.9"
+
 [features]
 stable = []
 starship-prompt = ["starship"]

crates/nu-cli/src/cli.rs

@@ -776,3 +776,19 @@ pub fn print_err(err: ShellError, host: &dyn Host, source: &Text) {
         );
     });
 }
+
+#[cfg(test)]
+mod tests {
+
+    #[quickcheck]
+    fn quickcheck_parse(data: String) -> bool {
+        if let Ok(lite_pipeline) = nu_parser::lite_parse(&data, 0) {
+            let context = crate::context::Context::basic().unwrap();
+            nu_parser::classify_pipeline(&lite_pipeline, context.registry())
+                .failed
+                .is_none()
+        } else {
+            false
+        }
+    }
+}

crates/nu-cli/src/lib.rs

@@ -7,6 +7,12 @@ extern crate indexmap;
 #[macro_use]
 mod prelude;
 
+#[cfg(test)]
+extern crate quickcheck;
+#[cfg(test)]
+#[macro_use(quickcheck)]
+extern crate quickcheck_macros;
+
 mod cli;
 mod commands;
 mod context;