Add example tests

tests/texampleTests.m

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+classdef texampleTests < matlab.unittest.TestCase
+% Smoke level tests for the example .mlx files
+
+%   Copyright 2024 The MathWorks, Inc.
+
+    methods (TestClassSetup)
+        function setUpAndTearDowns(testCase)
+            openAIEnvVar = "OPENAI_KEY";
+            secretKey = getenv(openAIEnvVar);
+            % Create an empty .env file because it is expected by our .mlx
+            % example files
+            writelines("",".env");
+
+            % Assign the value of the secret key to OPENAI_API_KEY using
+            % the test fixture
+            import matlab.unittest.fixtures.EnvironmentVariableFixture
+            fixture = EnvironmentVariableFixture("OPENAI_API_KEY", secretKey);
+            testCase.applyFixture(fixture);
+
+            testCase.addTeardown(@() iCloseAll());
+        end
+    end
+
+    methods(Test)
+        function testAnalyzeScientificPapersUsingFunctionCalls(~)
+            AnalyzeScientificPapersUsingFunctionCalls;
+        end
+
+        function testProcessGeneratedTextinRealTimebyUsingChatGPTinStreamingMode(~)
+            ProcessGeneratedTextinRealTimebyUsingChatGPTinStreamingMode;
+        end
+
+        function testUsingDALLEToGenerateImages(~)
+            UsingDALLEToGenerateImages;
+        end
+
+        function testInformationRetrievalUsingOpenAIDocumentEmbedding(~)
+            InformationRetrievalUsingOpenAIDocumentEmbedding;
+        end
+
+        function testDescribeImagesUsingChatGPT(~)
+            DescribeImagesUsingChatGPT;
+        end
+
+        function testSummarizeLargeDocumentsUsingChatGPTandMATLAB(~)
+            SummarizeLargeDocumentsUsingChatGPTandMATLAB;
+        end
+
+        function testAnalyzeTextDataUsingParallelFunctionCallwithChatGPT(~)
+            AnalyzeTextDataUsingParallelFunctionCallwithChatGPT;
+        end
+
+        function testRetrievalAugmentedGenerationUsingChatGPTandMATLAB(~)
+            RetrievalAugmentedGenerationUsingChatGPTandMATLAB;
+        end
+    end
+
+end
+
+function iCloseAll()
+% Close all opened figures
+allFig = findall(0, 'type', 'figure');
+close(allFig)
+end