diff --git a/.github/workflows/test_ci.yml b/.github/workflows/test_ci.yml
new file mode 100644
index 0000000..c1271a0
--- /dev/null
+++ b/.github/workflows/test_ci.yml
@@ -0,0 +1,20 @@
+name: Build and Test
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose
\ No newline at end of file
diff --git a/examples/get-test-data.rs b/examples/get-test-data.rs
new file mode 100644
index 0000000..f39c487
--- /dev/null
+++ b/examples/get-test-data.rs
@@ -0,0 +1,72 @@
+use std::{
+    fs::{create_dir_all, File},
+    io::Write,
+};
+
+use aero2solver::{
+    constants::{BASE_URL, USER_AGENT},
+    portal::PortalClient,
+    solver::Aero2Solver,
+};
+use anyhow::{anyhow, Result};
+
+fn run(solver: &mut Aero2Solver) -> Result<()> {
+    let client = PortalClient::new(BASE_URL, USER_AGENT)?;
+
+    let state = client.get_state()?;
+
+    let mut tries = 0;
+    let (solution, captcha) = loop {
+        tries += 1;
+        println!("Trying to solve captcha (try {})", tries);
+        let captcha = client.get_captcha(&state.session_id)?;
+        match solver.solve(&captcha, 0.9, 8) {
+            Ok(solution) => {
+                println!("Captcha solved as {} after {}", solution, tries);
+                break (solution, captcha);
+            }
+            Err(e) => println!("Error while solving captcha: {}", e),
+        }
+    };
+
+    let state = client.submit_captcha(&state.session_id, &solution)?;
+    match state.message {
+        Some(ref message) if message.eq("Rozłącz i ponownie połącz się z Internetem.") => {
+            println!("Captcha solved, code: {}", solution);
+        }
+        _ => Err(anyhow!(
+            "Captcha solved with message: {}",
+            state.message.unwrap_or_default()
+        ))?,
+    }
+
+    let mut file = File::create(format!("./tests/data/captcha_{}.jpg", solution))?;
+    file.write_all(&captcha)?;
+
+    Ok(())
+}
+
+fn main() -> Result<()> {
+    let mut solver = Aero2Solver::new(
+        "./model/captcha.names",
+        "./model/captcha.cfg",
+        "./model/captcha.weights",
+    )?;
+
+    create_dir_all("./tests/data")?;
+
+    // loop until we have 10 successful solves
+    let mut success_count = 0;
+    loop {
+        if success_count >= 10 {
+            break;
+        }
+
+        match run(&mut solver) {
+            Ok(_) => success_count += 1,
+            Err(e) => println!("Error: {}", e),
+        }
+    }
+
+    Ok(())
+}
diff --git a/tests/data/captcha_5wq5kg82.jpg b/tests/data/captcha_5wq5kg82.jpg
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diff --git a/tests/data/captcha_gvvpvbrk.jpg b/tests/data/captcha_gvvpvbrk.jpg
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diff --git a/tests/data/captcha_h9q55ini.jpg b/tests/data/captcha_h9q55ini.jpg
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diff --git a/tests/data/captcha_jky533gk.jpg b/tests/data/captcha_jky533gk.jpg
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diff --git a/tests/data/captcha_jv26634d.jpg b/tests/data/captcha_jv26634d.jpg
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diff --git a/tests/data/captcha_jv34w6k8.jpg b/tests/data/captcha_jv34w6k8.jpg
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diff --git a/tests/data/captcha_kg32n4r6.jpg b/tests/data/captcha_kg32n4r6.jpg
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diff --git a/tests/data/captcha_pvbj3839.jpg b/tests/data/captcha_pvbj3839.jpg
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index 0000000..ec34cd4
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diff --git a/tests/data/captcha_qhpy47fr.jpg b/tests/data/captcha_qhpy47fr.jpg
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diff --git a/tests/data/captcha_whpvhmt5.jpg b/tests/data/captcha_whpvhmt5.jpg
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diff --git a/tests/offline_solve.rs b/tests/offline_solve.rs
new file mode 100644
index 0000000..8c7d447
--- /dev/null
+++ b/tests/offline_solve.rs
@@ -0,0 +1,38 @@
+use aero2solver::solver::Aero2Solver;
+use std::fs;
+
+#[test]
+fn test_solve() {
+    let mut solver = Aero2Solver::new(
+        "./model/captcha.names",
+        "./model/captcha.cfg",
+        "./model/captcha.weights",
+    )
+    .unwrap();
+
+    // solve all captchas that match the pattern captcha_*.jpg
+    let files = fs::read_dir("./tests/data")
+        .unwrap()
+        .map(|x| x.unwrap().path())
+        .filter(|x| {
+            x.to_str().unwrap().contains("captcha_") && x.to_str().unwrap().ends_with(".jpg")
+        })
+        .collect::<Vec<_>>();
+
+    for ref file in files {
+        // extract text between captcha_ and .jpg
+        let correct_solution = file
+            .file_stem()
+            .unwrap()
+            .to_str()
+            .unwrap()
+            .split('_')
+            .last()
+            .unwrap();
+
+        let captcha = fs::read(file).unwrap();
+        let solution = solver.solve(&captcha, 0.9, 8).unwrap();
+        assert_eq!(solution, correct_solution);
+        println!("solved test captcha: {}", solution);
+    }
+}