add tox testenv that verifies that source builds contain everything necessary for tests

Author: mattsb42-aws

test/source-build-check.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+# Verify that tests can be successfully run from the source build.
+WORKINGDIR=$1
+DISTDIR=$2
+
+echo "Locating the source build and copying it into the working directory."
+DISTFILE=`ls $DISTDIR/dynamodb-encryption-sdk-*.tar.gz | tail -1`
+cp $DISTFILE $WORKINGDIR
+DISTFILE=`ls $WORKINGDIR/dynamodb-encryption-sdk-*.tar.gz | tail -1`
+
+echo "Extracting the source build."
+cd $WORKINGDIR
+tar xzvf $DISTFILE
+rm $DISTFILE
+EXTRACTEDDIR=`ls | tail -1`
+cd $EXTRACTEDDIR
+
+echo "Installing requirements from extracted source build."
+pip install -r test/requirements.txt
+pip install -e .
+
+echo "Running tests from extracted source build."
+pytest --cov dynamodb_encryption_sdk -m "local and not slow and not veryslow and not nope"

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{27,34,35,36}-{local,integ,examples}-fast, nocmk,
+    py{27,34,35,36}-{local,integ,examples}-fast, nocmk, sourcebuildcheck,
     bandit, doc8, readme,
     flake8, pylint,
     flake8-tests, pylint-tests,
@@ -66,6 +66,17 @@ sitepackages = False
 deps = -rtest/requirements.txt
 commands = {[testenv:base-command]commands} -m "local and not slow and not veryslow and not nope"
 
+# Verify that tests can be successfully run from the source build.
+[testenv:sourcebuildcheck]
+basepython = python3
+sitepackages = False
+recreate = True
+deps =
+    {[testenv:build]deps}
+commands =
+    {[testenv:build]commands}
+    {toxinidir}/test/source-build-check.sh {envtmpdir} {toxinidir}/dist
+
 # mypy
 [testenv:mypy-coverage]
 commands =