Enforce coverage (#955)

* Enforce coverage when running tests

* Enforce test coverage

.github/workflows/test-suite.yml

@@ -29,3 +29,5 @@ jobs:
         run: "scripts/build"
       - name: "Run tests"
         run: "scripts/test"
+      - name: "Enforce coverage"
+        run: "scripts/coverage"

scripts/coverage

@@ -0,0 +1,11 @@
+#!/bin/sh -e
+
+export PREFIX=""
+if [ -d 'venv' ] ; then
+    export PREFIX="venv/bin/"
+fi
+export SOURCE_FILES="httpx tests"
+
+set -x
+
+${PREFIX}coverage report --show-missing --skip-covered --fail-under=97

scripts/test

@@ -22,3 +22,7 @@ fi
 set -ex
 
 ${PREFIX}pytest $@
+
+if [ -z $GITHUB_ACTIONS ]; then
+    scripts/coverage
+fi

setup.cfg

@@ -16,6 +16,6 @@ line_length = 88
 multi_line_output = 3
 
 [tool:pytest]
-addopts = --cov=httpx --cov=tests --cov-report=term-missing -rxXs
+addopts = --cov=httpx --cov=tests -rxXs
 markers =
   copied_from(source, changes=None): mark test as copied from somewhere else, along with a description of changes made to accodomate e.g. our test setup