From 21601561a6ff8d858a7c740b559df70b1483c739 Mon Sep 17 00:00:00 2001
From: Ben Farley <47006790+farleyb-amazon@users.noreply.github.com>
Date: Fri, 26 Mar 2021 11:13:47 -0600
Subject: [PATCH] chore: Fail build if code coverage is too low (#153)

---
 buildspec.yml                   |  3 +++
 codebuild/coverage/coverage.yml | 14 ++++++++++++++
 setup.cfg                       |  1 +
 tox.ini                         | 10 +++++++++-
 4 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 codebuild/coverage/coverage.yml

diff --git a/buildspec.yml b/buildspec.yml
index 7bef08e4..02307f95 100644
--- a/buildspec.yml
+++ b/buildspec.yml
@@ -13,3 +13,6 @@ batch:
       buildspec: codebuild/python3.7.yml
     - identifier: python3_8
       buildspec: codebuild/python3.8.yml
+
+    - identifier: code_coverage
+      buildspec: codebuild/coverage/coverage.yml
diff --git a/codebuild/coverage/coverage.yml b/codebuild/coverage/coverage.yml
new file mode 100644
index 00000000..f82a3a98
--- /dev/null
+++ b/codebuild/coverage/coverage.yml
@@ -0,0 +1,14 @@
+version: 0.2
+
+env:
+  variables:
+    TOXENV: "coverage"
+
+phases:
+  install:
+    runtime-versions:
+      python: latest
+  build:
+    commands:
+      - pip install tox
+      - tox
diff --git a/setup.cfg b/setup.cfg
index a4080d60..0b64cb5c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,6 +9,7 @@ branch = True
 
 [coverage:report]
 show_missing = True
+fail_under = 90
 
 [mypy]
 ignore_missing_imports = True
diff --git a/tox.ini b/tox.ini
index 33f1aff9..fae478e3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,8 +35,12 @@ envlist =
 # test-release :: Builds dist files and uploads to testpypi pypirc profile.
 # release :: Builds dist files and uploads to pypi pypirc profile.
 
+# Reporting environments:
+#
+# coverage :: Runs code coverage, failing the build if coverage is below the configured threshold
+
 [testenv:base-command]
-commands = pytest --basetemp={envtmpdir} -l --cov dynamodb_encryption_sdk {posargs}
+commands = pytest --basetemp={envtmpdir} -l {posargs}
 
 [testenv]
 passenv =
@@ -86,6 +90,10 @@ commands =
     # Only run examples tests
     examples: {[testenv:base-command]commands} examples/test/ -m "examples"
 
+# Run code coverage on the unit tests
+[testenv:coverage]
+commands = {[testenv:base-command]commands} --cov dynamodb_encryption_sdk test/ -m "local and not slow and not veryslow and not nope"
+
 # Verify that local tests work without environment variables present
 [testenv:nocmk]
 basepython = python3