1 files changed, 25 insertions, 1 deletions
diff --git a/test/t/test_screen.py b/test/t/test_screen.py
index c05e0ce0..d9254bda 100644
--- a/test/t/test_screen.py
+++ b/test/t/test_screen.py
@@ -2,7 +2,7 @@ import pytest
 
 
 class TestScreen:
-    @pytest.mark.complete("screen -")
+    @pytest.mark.complete("screen -", require_cmd=True)
     def test_1(self, completion):
         assert completion
 
@@ -22,3 +22,27 @@ class TestScreen:
     @pytest.mark.complete("screen -T foo cat")
     def test_5(self, completion):
         assert completion
+
+    @pytest.mark.complete("screen //")
+    def test_telnet(self, completion):
+        assert completion == "//telnet"
+
+    @pytest.mark.complete("screen cat //")
+    def test_not_telnet(self, completion):
+        assert completion != "//telnet"
+
+    @pytest.mark.complete("screen //telnet ", env=dict(HOME="$PWD/shared"))
+    def test_telnet_first_arg(self, completion):
+        assert "bash-completion-canary-host.local" in completion
+
+    @pytest.mark.complete("screen //telnet foo ", env=dict(HOME="$PWD/shared"))
+    def test_telnet_other_args(self, completion):
+        assert not completion
+
+    @pytest.mark.complete("screen /dev/ttyUSB0 ")
+    def test_serial_2nd_arg(self, completion):
+        assert "19200" in completion
+
+    @pytest.mark.complete("screen /dev/ttyUSB0 9600 ")
+    def test_serial_3rdplus_arg(self, completion):
+        assert not completion