Add example test for taskotron

test/help-usage/Makefile

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+.PHONY: all install download clean
+
+BUILT_FILES=
+
+FILES=runtest.sh Makefile
+
+run: $(FILES) build
+	./runtest.sh
+
+build: $(BUILT_FILES)
+	chmod a+x ./runtest.sh
+
+clean:
+	rm -f *~ $(BUILT_FILES)

test/help-usage/README.rst

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+help-usage
+==========
+
+This is an example task for `Taskotron <https://fedoraproject.org/wiki/Taskotron>`_
+that tests the basic functionality of 'sscg --help' to confirm it generates a usage message.
+
+Standalone you can run it like this::
+
+  $ make run
+
+Through taskotron runner you can run it like this::
+
+  $ runtask -i sscg-2.0.4-1.fc27 -t koji_build -a x86_64 runtask.yml

test/help-usage/runtask.yml

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+---
+name: help-usage
+desc: "Tests the basic functionality of 'sscg --help' to confirm it generates a usage message."
+maintainer: sgallagh
+
+input:
+    args:
+        - koji_build
+        - arch
+
+environment:
+    rpm:
+        - make
+
+actions:
+    - name: download the build
+      koji:
+          action: download
+          koji_build: ${koji_build}
+          arch: $arch
+          target_dir: ${workdir}/rpms
+
+    - name: install the build
+      shell:
+          - dnf install -y ${workdir}/rpms/*.rpm
+
+    - name: run test
+      shell:
+          - make run

test/help-usage/runtest.sh

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+#!/bin/sh
+
+PACKAGE=sscg
+
+# Assume the test will pass.
+result=PASS
+
+sscg --help | grep -q -i '^usage:'
+if [ $? -ne 0 ]; then
+        result=FAIL
+fi
+
+echo $result