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.

3 files changed, 71 insertions, 5 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6655399..176339b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,17 @@
 image: alpine:3
 
+stages:
+  - test
+
+test:
+  before_script:
+    - export PATH="$PATH:$HOME/.cargo/bin"
+    - apk add npm make curl build-base firefox
+    - curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --profile minimal --quiet -y
+    - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+  script:
+    - make test
+
 pages:
   before_script:
     - export PATH="$PATH:$HOME/.cargo/bin"
diff --git a/Makefile b/Makefile
index 5ae5e87..795de5c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,15 @@
-all: cargo
+all: wasm
 	cd www && \
 		npm install && \
 		npm run build
 
-serve: cargo
+serve: wasm
 	cd www && \
 		npm install && \
 		npm run start
 
-cargo:
+wasm:
 	wasm-pack build --no-typescript --release
+
+test:
+	wasm-pack test --headless --firefox
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))
+        }
+    }
 }