diff --git a/localite/flow/ext.py b/localite/flow/ext.py
index 5db5939..d200653 100644
--- a/localite/flow/ext.py
+++ b/localite/flow/ext.py
@@ -54,7 +54,7 @@ def __init__(self, queue: Queue, host: str = "127.0.0.1", port: int = 6667):
         self.is_running = threading.Event()
 
     def await_running(self):
-        while not self.is_running.is_set():
+        while not self.is_running.is_set(): # pragma no cover
             pass
 
     def run(self):
diff --git a/localite/flow/loc.py b/localite/flow/loc.py
index 1d00501..f633491 100644
--- a/localite/flow/loc.py
+++ b/localite/flow/loc.py
@@ -182,7 +182,7 @@ def reset(self):
 
     def update(self, payload: Payload):
         "update the expectation"
-        if payload.fmt != "loc":  # pragma no cover
+        if payload.fmt != "loc":
             raise ValueError("Must be a valid loc-command")
         self.fmt = payload.fmt
         self.msg = payload.msg
@@ -264,11 +264,11 @@ def run(self):
                         response = listen_and_queue(
                             client, ignore=self.ignore, queue=self.outbox
                         )
-                    # sometimes, the get: "target_index" is ignored. 
+                    # sometimes, the get: "target_index" is ignored.
                     # in these cases, resend
                     if "target_index" in lastmessage.msg:
-                        flevel = lastmessage.expects(response)                
-                        if flevel >= 2:                        
+                        flevel = lastmessage.expects(response)
+                        if flevel >= 2:
                             print("LOC:RESEND", lastmessage.msg)
                             client.send(lastmessage.msg)
                             lastmessage.counter = 0
diff --git a/makefile b/makefile
index 5ff3320..21c0697 100644
--- a/makefile
+++ b/makefile
@@ -1,4 +1,4 @@
-SHELL := /bin/bash #to be able to execute `source`
+#SHELL := /bin/bash #to be able to execute `source`
 
 .PHONY: build
 build: clean
@@ -9,15 +9,16 @@ clean:
 	rm -rf dist */*.egg-info *.egg-info  build
 	rm -rf .test
 
+.ONESHELL:
 .PHONY: test
 test: build
-	twine check dist/*
-	# twine upload --repository-url https://test.pypi.org/legacy/ dist/* --verbose
-	virtualenv .test
-	source .test/bin/activate
-	pip install git+https://github.com/labstreaminglayer/liblsl-Python.git
-	pip install dist/*.whl
-	pytest
+	bash test/install
+	# twine check dist/*	
+	# virtualenv .test
+	# source .test/bin/activate
+	# pip install git+https://github.com/labstreaminglayer/liblsl-Python.git
+	# pip install dist/*.whl
+	# pytest
 
 .PHONY: upload
 upload: build
diff --git a/pytest.ini b/pytest.ini
index 0f1a040..bb974ea 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,3 @@
 [pytest]
 testpaths = test
-addopts = --cov=localite -r a -v
\ No newline at end of file
+addopts = --cov=localite -r a -v --cov-report html
\ No newline at end of file
diff --git a/test/flow/test_loc.py b/test/flow/test_loc.py
index 789efa4..b156f40 100644
--- a/test/flow/test_loc.py
+++ b/test/flow/test_loc.py
@@ -1,7 +1,7 @@
 # from .mock_localite import Mock
-from pytest import fixture
+from pytest import fixture, raises
 from localite.flow.mock import Mock
-from localite.flow.loc import LOC, is_valid
+from localite.flow.loc import LOC, is_valid, LastMessage
 from localite.flow.payload import Queue, Payload, put_in_queue, get_from_queue
 import time
 import json
@@ -164,3 +164,27 @@ def pl(msg: str) -> Payload:
     assert is_valid(pl('{"coil_0_target_index": -1}')) == False
     assert is_valid(pl('{"current_instrument": "POINTER"}'))
     assert is_valid(pl('{"garbage": "garbage"}')) == False
+
+
+def test_last_message_expects():
+    lm = LastMessage()
+    assert lm.expects(None) == 0
+    assert lm.expects(None) == 0
+
+
+def test_last_message_raises():
+    pl = Payload(fmt="mrk", msg='{"single_pulse":"COIL_0"}')
+    lm = LastMessage()
+    with raises(ValueError):
+        lm.update(pl)
+
+
+def test_last_message_works():
+    pl = Payload(fmt="loc", msg='{"single_pulse":"COIL_0"}')
+    lm = LastMessage()
+    lm.update(pl)
+    assert lm.expects(None) == 1
+    assert lm.expects(None) == 2
+    response = {lm.expect: 1}
+    assert lm.expects(response) == 0
+    assert lm.expect == None
diff --git a/test/install b/test/install
new file mode 100644
index 0000000..0f4200d
--- /dev/null
+++ b/test/install
@@ -0,0 +1,7 @@
+#!/bin/bash
+twine check dist/*	
+virtualenv .test
+source .test/bin/activate
+pip install git+https://github.com/labstreaminglayer/liblsl-Python.git
+pip install dist/*.whl
+pytest
\ No newline at end of file