diff --git a/test/kolab_wopi/api/files_test.exs b/test/kolab_wopi/api/files_test.exs
new file mode 100644
index 0000000..43b3d76
--- /dev/null
+++ b/test/kolab_wopi/api/files_test.exs
@@ -0,0 +1,63 @@
+defmodule KolabWopiTest.API.Files do
+  use ExUnit.Case, async: true
+  use Plug.Test
+  doctest KolabWopi.API.Files
+
+  @opts KolabWopi.API.init([])
+
+  test "GET /wopi/files" do
+    conn = conn(:get, "/wopi/files")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 404
+  end
+
+  test "GET /wopi/files/xxx" do
+    conn = conn(:get, "/wopi/files/xxx")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 501
+  end
+
+  test "GET /wopi/files/xxx/contents" do
+    conn = conn(:get, "/wopi/files/xxx/contents")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 501
+  end
+
+  test "GET /wopi/files/xxx/ancestry" do
+    conn = conn(:get, "/wopi/files/xxx/ancestry")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 501
+  end
+
+  test "GET /wopi/files/xxx/ecosystem_pointer" do
+    conn = conn(:get, "/wopi/files/xxx/ecosystem_pointer")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 501
+  end
+
+  test "GET /wopi/files/xxx/unknown" do
+    conn = conn(:get, "/wopi/files/xxx/unknown")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 404
+  end
+
+  test "POST /wopi/files/xxx" do
+    conn = conn(:post, "/wopi/files/xxx")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 501
+  end
+
+  test "POST /wopi/files/xxx/contents" do
+    conn = conn(:post, "/wopi/files/xxx/contents")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 501
+  end
+end
diff --git a/test/kolab_wopi/api_test.exs b/test/kolab_wopi/api_test.exs
new file mode 100644
index 0000000..6bcc853
--- /dev/null
+++ b/test/kolab_wopi/api_test.exs
@@ -0,0 +1,28 @@
+defmodule KolabWopiTest.API do
+  use ExUnit.Case, async: true
+  use Plug.Test
+  doctest KolabWopi.API
+
+  @opts KolabWopi.API.init([])
+
+  test "GET /" do
+    conn = conn(:get, "/")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 404
+  end
+
+  test "GET /unknown" do
+    conn = conn(:get, "/unknown")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 404
+  end
+
+  test "GET /wopi" do
+    conn = conn(:get, "/wopi")
+    conn = KolabWopi.API.call(conn, @opts)
+
+    assert conn.status == 404
+  end
+end