add lisp packages

lisp/org/testing/examples/ob-octave-test.org

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+#+Title: a collection of examples for ob-octave tests
+#+OPTIONS: ^:nil
+
+* Simple tests
+  :PROPERTIES:
+  :ID:       54dcd61d-cf6c-4d7a-b9e5-854953c8a753
+  :END:
+Number output
+#+begin_src octave :exports results :results silent
+ans = 10
+#+end_src
+
+Array output
+#+begin_src octave :exports results :results silent
+ans = 1:4'
+#+end_src
+
+* Input tests
+  :PROPERTIES:
+  :ID:       cc2d82bb-2ac0-45be-a0c8-d1463b86a3ba
+  :END:
+Input an integer variable
+#+begin_src octave :exports results :results silent :var s=42
+ans = s
+#+end_src
+
+Input an array
+#+begin_src octave :exports results :results silent :var s='(1.0 2.0 3.0)
+ans = s
+#+end_src
+
+Input a matrix
+#+begin_src octave :exports results :results silent :var s='((1 2) (3 4))
+ans = s
+#+end_src
+
+Input a string
+#+begin_src octave :exports results :results silent :var s="test"
+ans = s(1:2)
+#+end_src
+
+Input elisp nil
+#+begin_src octave :exports results :results silent :var s='nil
+ans = s
+#+end_src
+
+
+* Graphical tests
+#+begin_src octave :results graphics :file chart.png
+sombrero;
+#+end_src
+
+#+begin_src octave :session
+sombrero;
+#+end_src