diff --git a/bopytex/worker/generate.py b/bopytex/worker/generate.py
new file mode 100644
index 0000000..ff80f76
--- /dev/null
+++ b/bopytex/worker/generate.py
@@ -0,0 +1,13 @@
+from jinja2.environment import Template
+
+
+def generate(args, deps, output):
+    env = args["jinja2"]["environment"]
+    template = env.get_template(deps[0])
+    with open(output, "w") as out:
+        out.write(tpl2tex(template, metas=args))
+    yield f"GENERATE - {deps[0]} to {output}"
+
+
+def tpl2tex(template: Template, metas: dict = {}) -> str:
+    return template.render(metas)
diff --git a/bopytex/worker/worker.py b/bopytex/worker/worker.py
deleted file mode 100644
index d544d77..0000000
--- a/bopytex/worker/worker.py
+++ /dev/null
@@ -1,28 +0,0 @@
-""" A worker consumes tasks  """
-def generate():
-    pass
-
-
-def compile():
-    pass
-
-
-def activate_corr():
-    pass
-
-
-def join_pdf():
-    pass
-
-
-def clean():
-    pass
-
-
-WORKERS = {
-    "GENERATE": generate,
-    "COMPILE": compile,
-    "ACTIVATE_CORR": activate_corr,
-    "JOIN_PDF": join_pdf,
-    "CLEAN": clean,
-}
diff --git a/test/worker/test_generate.py b/test/worker/test_generate.py
new file mode 100644
index 0000000..ab90ba7
--- /dev/null
+++ b/test/worker/test_generate.py
@@ -0,0 +1,45 @@
+import os
+import jinja2
+from pathlib import Path
+from bopytex.worker.generate import tpl2tex, generate
+import pytest
+
+
+def test_tpl2tex():
+    tpl = "Plop {{a}}"
+    jinja2_tpl = jinja2.Template(tpl)
+    fed = tpl2tex(jinja2_tpl, metas={"a": 1})
+    assert fed == "Plop 1"
+
+
+@pytest.fixture
+def template_path(tmp_path):
+    template = tmp_path / "template.j2"
+    with open(template, "w") as tpl:
+        tpl.write("Plop {{ a }}")
+    return template
+
+
+@pytest.fixture
+def jinja2_env(tmp_path):
+    templateEnv = jinja2.Environment(loader=jinja2.FileSystemLoader(tmp_path))
+    return templateEnv
+
+
+def test_generate(template_path, jinja2_env):
+    tmp_path = template_path.parent
+    os.chdir(tmp_path)
+
+    assert template_path.exists
+    template = str(template_path.name)
+    output = "output"
+
+    result = next(generate(
+        args={"a": 2, "jinja2": {"environment": jinja2_env}},
+        deps=[template],
+        output=output,
+    ))
+    assert result == "GENERATE - template.j2 to output"
+    with open(output, "r") as out:
+        lines = out.readlines()
+        assert lines == ["Plop 2"]