Add rustlings

1 files changed, 53 insertions, 0 deletions

diff --git a/rustlings/exercises/03_if/if3.rs b/rustlings/exercises/03_if/if3.rs
new file mode 100644
index 0000000..89164eb
--- /dev/null
+++ b/rustlings/exercises/03_if/if3.rs
@@ -0,0 +1,53 @@
+fn animal_habitat(animal: &str) -> &str {
+    // TODO: Fix the compiler error in the statement below.
+    let identifier = if animal == "crab" {
+        1
+    } else if animal == "gopher" {
+        2.0
+    } else if animal == "snake" {
+        3
+    } else {
+        "Unknown"
+    };
+
+    // Don't change the expression below!
+    if identifier == 1 {
+        "Beach"
+    } else if identifier == 2 {
+        "Burrow"
+    } else if identifier == 3 {
+        "Desert"
+    } else {
+        "Unknown"
+    }
+}
+
+fn main() {
+    // You can optionally experiment here.
+}
+
+// Don't change the tests!
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn gopher_lives_in_burrow() {
+        assert_eq!(animal_habitat("gopher"), "Burrow")
+    }
+
+    #[test]
+    fn snake_lives_in_desert() {
+        assert_eq!(animal_habitat("snake"), "Desert")
+    }
+
+    #[test]
+    fn crab_lives_on_beach() {
+        assert_eq!(animal_habitat("crab"), "Beach")
+    }
+
+    #[test]
+    fn unknown_animal() {
+        assert_eq!(animal_habitat("dinosaur"), "Unknown")
+    }
+}