feat: Add test to generate function

Add testing for `generate` rust function.
That function is pretty much the whole bussiness logic of the
application and as far as I can see the only one worth testing.

1 files changed, 53 insertions, 2 deletions

diff --git a/tests/web.rs b/tests/web.rs
index de5c1da..607f16d 100644
--- a/tests/web.rs
+++ b/tests/web.rs
@@ -3,11 +3,62 @@
 #![cfg(target_arch = "wasm32")]
 
 extern crate wasm_bindgen_test;
+
 use wasm_bindgen_test::*;
+use genpass::generate;
 
 wasm_bindgen_test_configure!(run_in_browser);
 
+const ATTEMPTS: usize = 5;
+
+#[wasm_bindgen_test]
+fn generate_length() {
+    for x in (0..=100).step_by(5) {
+        let password = generate(x, true, true, true, true);
+        assert_eq!(x, password.len())
+    }
+}
+
+#[wasm_bindgen_test]
+fn generate_not_upper_letters() {
+    let lower_charset = "abcdefghijklmnopqrstuvwxyz";
+    for _ in 0..ATTEMPTS {
+        let password = generate(100, false, true, true, true);
+        for char in String::from(lower_charset).chars().into_iter() {
+            assert!(!password.contains(char))
+        }
+    }
+}
+
+#[wasm_bindgen_test]
+fn generate_not_lower_letters() {
+    let upper_charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+    for x in 0..ATTEMPTS {
+        let password = generate(x, true, false, true, true);
+        for char in String::from(upper_charset).chars().into_iter() {
+            assert!(!password.contains(char))
+        }
+    }
+}
+
+#[wasm_bindgen_test]
+fn generate_not_number_letters() {
+    let upper_charset = "1234567890";
+    for x in 0..ATTEMPTS {
+        let password = generate(x, true, true, false, true);
+        for char in String::from(upper_charset).chars().into_iter() {
+            assert!(!password.contains(char))
+        }
+    }
+}
+
 #[wasm_bindgen_test]
-fn pass() {
-    assert_eq!(1 + 1, 2);
+fn generate_not_special_letters() {
+    let upper_charset = "!@#$%^&*()+{}[]";
+    for x in 0..ATTEMPTS {
+        let password = generate(x, true, true, true, false);
+        for char in String::from(upper_charset).chars().into_iter() {
+            assert!(!password.contains(char))
+        }
+    }
 }