Added first version of unit tests for the buildpack

test/compile_and_run.sh

@@ -0,0 +1,57 @@
+#!/bin/sh
+
+. ${BUILDPACK_TEST_RUNNER_HOME}/lib/test_utils.sh
+
+
+getAvailableVersions()
+{
+  APT_DIR="$HOME/.apt" APT_CACHE_DIR="$CACHE_DIR/apt/cache"
+  APT_STATE_DIR="$CACHE_DIR/apt/state"
+  mkdir -p "$APT_CACHE_DIR/archives/partial"
+  mkdir -p "$APT_STATE_DIR/lists/partial"
+  mkdir -p "$APT_DIR"
+  APT_REPO_FILE="${BUILDPACK_HOME}/etc/datadog.list"
+  APT_OPTIONS="-o debug::nolocking=true -o dir::cache=$APT_CACHE_DIR -o dir::state=$APT_STATE_DIR -o Dir::Etc::SourceList=$APT_REPO_FILE"
+  apt-get $APT_OPTIONS update
+  AGENT_VERSIONS=$(apt-cache $APT_OPTIONS show datadog-agent | grep "Version: " | sed 's/Version: 1://g')
+}
+
+compileAndRunVersion()
+{
+
+  echo $1 > "${ENV_DIR}/DD_AGENT_VERSION"
+  echo "Testing Datadog Agent version $1"
+  compile
+  assertCaptured "Installing dependencies"
+  assertCaptured "Downloading Datadog Agent $1"
+  assertCaptured "Installing Datadog Agent"
+  assertCaptured "Installing Datadog runner"
+
+  export HOME=${BUILD_DIR}
+  chmod +x ${BUILDPACK_HOME}/extra/datadog.sh 
+  capture ${BUILDPACK_HOME}/extra/datadog.sh
+  assertFileNotContains "error while loading shared libraries" ${STD_ERR}
+  assertFileNotContains "Could not initialize Python" ${STD_ERR}
+  assertCaptured "Starting Datadog Agent"
+  assertCaptured "Starting Datadog Trace Agent"
+
+}
+
+testReleasedVersions()
+{
+  getAvailableVersions
+
+  for VERSION in ${AGENT_VERSIONS}; do
+    compileAndRunVersion $VERSION
+  done 
+}
+
+testLatestNightlyVersion()
+{
+  echo "deb [trusted=yes] http://apt.datad0g.com/ nightly main 6" > "${BUILDPACK_HOME}/etc/datadog.list"
+  getAvailableVersions
+  VERSION="$(echo ${AGENT_VERSIONS} | head -n1 | awk '{print $1;}')"
+
+  compileAndRunVersion $VERSION
+
+}