From da277eaccc062f1e46204d63d8294640a67108ee Mon Sep 17 00:00:00 2001
From: Julio Biason <j.biason@engys.com>
Date: Mon, 8 Jul 2024 15:21:21 -0300
Subject: [PATCH] Playing with Results in tests

---
 resultteststest/Cargo.lock |  7 ++++++
 resultteststest/Cargo.toml |  6 +++++
 resultteststest/README.md  |  3 +++
 resultteststest/src/lib.rs | 46 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 62 insertions(+)
 create mode 100644 resultteststest/Cargo.lock
 create mode 100644 resultteststest/Cargo.toml
 create mode 100644 resultteststest/README.md
 create mode 100644 resultteststest/src/lib.rs

diff --git a/resultteststest/Cargo.lock b/resultteststest/Cargo.lock
new file mode 100644
index 0000000..d1f8dd4
--- /dev/null
+++ b/resultteststest/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "resultteststest"
+version = "0.1.0"
diff --git a/resultteststest/Cargo.toml b/resultteststest/Cargo.toml
new file mode 100644
index 0000000..942deef
--- /dev/null
+++ b/resultteststest/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "resultteststest"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/resultteststest/README.md b/resultteststest/README.md
new file mode 100644
index 0000000..5b8fa7a
--- /dev/null
+++ b/resultteststest/README.md
@@ -0,0 +1,3 @@
+# ResultTestsTest
+
+Checking how Cargo deals with Results in tests
diff --git a/resultteststest/src/lib.rs b/resultteststest/src/lib.rs
new file mode 100644
index 0000000..ff5ca99
--- /dev/null
+++ b/resultteststest/src/lib.rs
@@ -0,0 +1,46 @@
+fn not_zero(num: usize) -> Result<(), ()> {
+    if num == 0 {
+        Err(())
+    } else {
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn with_result_ok() -> Result<(), ()> {
+        Ok(())
+    }
+
+    #[test]
+    fn with_result_err() -> Result<(), ()> {
+        Err(())
+    }
+
+    #[test]
+    fn nested() -> Result<(), ()> {
+        not_zero(1)?;
+        Ok(())
+    }
+
+    #[test]
+    fn nested2() -> Result<(), ()> {
+        not_zero(0)?;
+        Ok(())
+    }
+
+    #[test]
+    fn nested3() -> Result<(), ()> {
+        let result = (|| {
+            not_zero(2)?;
+            Ok(())
+        })();
+
+        // do something else, like cleaning up the testing workspace
+
+        result
+    }
+}