Add coverage (and fix badges)

.github/workflows/tox.yml

@@ -29,3 +29,12 @@ jobs:
 
       - name: "Run tox targets for ${{ matrix.python-version }}"
         run: "tox"
+
+      - name: "Upload coverage to Codecov"
+        if: matrix.python-version == '3.12'
+        uses: codecov/codecov-action@v5
+        with:
+          file: ./coverage.xml
+          flags: unittests
+          name: codecov-umbrella
+          fail_ci_if_error: false

README.md

@@ -2,8 +2,9 @@
 ![chainfix](https://github.com/pydefi/chainfix/raw/main/docs/logo/chainfix_logo.png)
 
 [![CI](https://github.com/pydefi/chainfix/actions/workflows/tox.yml/badge.svg)](https://github.com/pydefi/chainfix/actions/workflows/tox.yml)
+[![codecov](https://codecov.io/gh/pydefi/chainfix/branch/main/graph/badge.svg)](https://codecov.io/gh/pydefi/chainfix)
 [![Python Version](https://img.shields.io/badge/python-3.8%2B-blue)](https://github.com/pydefi/chainfix)
-[![License](https://img.shields.io/github/license/pydefi/chainfix)](https://github.com/pydefi/chainfix/blob/main/LICENSE.txt)
+[![License](https://img.shields.io/github/license/pydefi/chainfix)](https://github.com/pydefi/chainfix/blob/main/LICENSE)
 
 Chainfix provides a way to represent numbers and perform simple math operations using fixed-point data types.
 

pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 authors = [{name = "PyDefi Development Team", email = "MikesRND@users.noreply.github.com"}]
 description = "Fixed-point data types for signal processing and blockchain applications"
 readme = "README.md"
-license = {file = "LICENSE.txt"}
+license = {file = "LICENSE"}
 requires-python = ">=3.8"
 classifiers = [
     "Development Status :: 3 - Alpha",
@@ -40,3 +40,15 @@ where = ["src"]
 
 [tool.setuptools.dynamic]
 version = {attr = "chainfix.__version__"}
+
+[tool.coverage.run]
+source = ["src"]
+branch = true
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "if TYPE_CHECKING:",
+    "raise NotImplementedError",
+]

tox.ini

@@ -3,8 +3,10 @@ isolated_build = true
 envlist = py38, py39, py310, py311, py312, py313
 
 [testenv]
-deps = pytest
-commands = pytest
+deps = 
+    pytest
+    pytest-cov
+commands = pytest --cov=chainfix --cov-report=xml --cov-report=term-missing
 
 [gh-actions]
 python =