Add tests for R2020b (#28)

.github/workflows/qualify_20b.yml

@@ -0,0 +1,38 @@
+# Run tInstall in R2020b on Ubuntu against Python 3.8
+
+name: Test R2020b
+
+on:
+  push:
+    branches:
+      - R2020b
+
+  pull_request:
+    branches:
+      - R2020b
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  test-python-engine:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Python
+        uses: actions/[email protected]
+        with:
+           python-version: 3.8
+
+      - name: Set up MATLAB
+        uses: matlab-actions/setup-matlab@v1
+        with:
+           release: R2020b
+
+      - uses: actions/checkout@v3
+
+      - name: Run tests
+        uses: matlab-actions/run-tests@v1

test/tInstall.m

@@ -0,0 +1,32 @@
+classdef tInstall < matlab.unittest.TestCase
+% Verify installation of matlab engine
+
+% Copyright 2023 Mathworks, Inc.
+
+    properties (Constant)
+        MATLABVersion = string(ver('MATLAB').Version) % Example: 9.14
+    end
+
+    methods (Test)
+        function installMatchingEngine(testCase)
+            [status, out] = system("pip install matlabengine==" + testCase.MATLABVersion + ".*");
+            addTeardown(testCase, @system, "pip uninstall -y matlabengine")
+            verifyEqual(testCase, status, 0, out)
+            verifyInstallation(testCase)
+        end
+    end
+
+    methods
+        function verifyInstallation(testCase)
+        % Verify installation by calling functions in matlab engine
+        % Share this session and see if find_matlab can find it.
+            sharedEngineName = matlab.engine.engineName;
+            if isempty(sharedEngineName)
+                sharedEngineName = 'MATLAB_tInstall';
+                matlab.engine.shareEngine(sharedEngineName)
+            end
+            pySharedEngineName = char(py.matlab.engine.find_matlab());
+            verifySubstring(testCase, pySharedEngineName, sharedEngineName)
+        end
+    end
+end