Add material for testing (#11)

* Add first draft material for testing

* added some first test stuff in julia

* add asserti error

* Rework intro slides

* added package

* Wrap up testing slides expect demo

* Smooth demo part

* Add statement on tests

* Remove previous python exercise file

---------

Co-authored-by: behinger (s-ccs 001) <benedikt.ehinger@vis.uni-stuttgart.de>

material/2_tue/testing/MyTestPackage/test/Manifest.toml

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+# This file is machine-generated - editing it directly is not advised
+
+julia_version = "1.9.2"
+manifest_format = "2.0"
+project_hash = "c34966543d8e8dc43716ca8888b0447b9c23c175"
+
+[[deps.Base64]]
+uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
+
+[[deps.InteractiveUtils]]
+deps = ["Markdown"]
+uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+
+[[deps.Logging]]
+uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
+
+[[deps.Markdown]]
+deps = ["Base64"]
+uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"
+
+[[deps.Random]]
+deps = ["SHA", "Serialization"]
+uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+
+[[deps.SHA]]
+uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"
+version = "0.7.0"
+
+[[deps.Serialization]]
+uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
+
+[[deps.StableRNGs]]
+deps = ["Random", "Test"]
+git-tree-sha1 = "3be7d49667040add7ee151fefaf1f8c04c8c8276"
+uuid = "860ef19b-820b-49d6-a774-d7a799459cd3"
+version = "1.0.0"
+
+[[deps.Test]]
+deps = ["InteractiveUtils", "Logging", "Random", "Serialization"]
+uuid = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

material/2_tue/testing/MyTestPackage/test/Project.toml

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+[deps]
+StableRNGs = "860ef19b-820b-49d6-a774-d7a799459cd3"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

material/2_tue/testing/MyTestPackage/test/find.jl

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+
+@testset "unit tests" begin
+    @testset "find_max" begin
+        @test find_max([1,2,3]) == 3
+        @test find_max([0,0,0]) == 0
+        
+        @test_throws AssertionError find_max([NaN,3,2])
+    end
+
+    @testset "find_mean" begin
+        @test find_mean([1,2,3]) == 2
+        @test find_mean([1,3,6]) ≈ 3.333 atol=1e-3
+      
+    end
+end
+
+@testset "integration test" begin
+    
+    data1 = [43, 32, 167, 18, 1, 209]
+    data2 = [3, 13, 33, 23, 498]
+
+    # Expected result
+    expected_mean_of_max = 353.5
+
+    maximum1 = find_max(data1)
+    maximum2 = find_max(data2)
+
+    # Actual result
+    actual_mean_of_max = find_mean([maximum1, maximum2])
+    
+    # Test
+    @test actual_mean_of_max == expected_mean_of_max
+    
+end

material/2_tue/testing/MyTestPackage/test/runtests.jl

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+using MyTestPackage # here it is ok to use, don't put it in your "debug"-convenience setup.jl
+include("setup.jl")
+
+
+@testset "find" begin
+    include("find.jl")
+end

material/2_tue/testing/MyTestPackage/test/setup.jl

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+using Test
+using StableRNGs