Update ParallelizableBuildSummaryPlugin.m to fix Windows filepath issue.

.github/workflows/bat.yml

@@ -4,6 +4,22 @@ permissions:
   contents: read
 
 jobs:
+  plugin-tests:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+          - os: windows-latest
+          - os: macos-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: matlab-actions/setup-matlab@v2
+        with:
+          release: latest-including-prerelease
+      - uses: matlab-actions/run-tests@v2
+
   bat:
     name: Build and Test
     runs-on: ubuntu-22.04
@@ -14,3 +30,4 @@ jobs:
           node-version: 20
       - name: Perform npm tasks
         run: npm run ci
+

plugins/+buildframework/ParallelizableBuildSummaryPlugin.m

@@ -1,15 +1,18 @@
 classdef ParallelizableBuildSummaryPlugin < matlab.buildtool.plugins.BuildRunnerPlugin
 
-    %   Copyright 2025 The MathWorks, Inc.
+    %   Copyright 2025-2026 The MathWorks, Inc.
 
     properties
         TempFolder
     end
 
     methods
-        function plugin = ParallelizableBuildSummaryPlugin()
-            tempRoot = getenv("RUNNER_TEMP");
-            plugin.TempFolder = fullfile(tempRoot, "taskDetails");
+        function plugin = ParallelizableBuildSummaryPlugin(options)
+            arguments
+                options.TempFolder (1,:) string = getenv("RUNNER_TEMP")
+            end
+
+            plugin.TempFolder = fullfile(options.TempFolder, "taskDetails");
         end
     end
 
@@ -31,7 +34,8 @@ function runBuild(plugin, pluginData)
             end
 
             % Write to file
-            [fID, msg] = fopen(fullfile(getenv("RUNNER_TEMP"), "buildSummary" + getenv("GITHUB_RUN_ID") + ".json"), "w");
+            folder = fileparts(plugin.TempFolder);
+            [fID, msg] = fopen(fullfile(folder, "buildSummary" + getenv("GITHUB_RUN_ID") + ".json"), "w");
             if fID == -1
                 warning("buildframework:BuildSummaryPlugin:UnableToOpenFile","Unable to open a file required to create the MATLAB build summary table: %s", msg);
             else
@@ -44,18 +48,28 @@ function runBuild(plugin, pluginData)
         function runTask(plugin, pluginData)
             runTask@matlab.buildtool.plugins.BuildRunnerPlugin(plugin, pluginData);
 
-            name = fullfile(plugin.TempFolder, pluginData.Name + ".mat");
+            name = fullfile(plugin.TempFolder, matlab.lang.makeValidName(pluginData.Name) + ".mat");
             taskDetail = getCommonTaskDetail(pluginData);
-            save(name, "taskDetail");
+
+            try
+                save(name, "taskDetail");
+            catch e
+                warning("buildframework:BuildSummaryPlugin:UnableToSaveTrace", "Unable to save an artifact needed for the build summary.");
+            end
         end
 
         function skipTask(plugin, pluginData)
             skipTask@matlab.buildtool.plugins.BuildRunnerPlugin(plugin, pluginData);
 
-            name = fullfile(plugin.TempFolder, pluginData.Name + ".mat");
+            name = fullfile(plugin.TempFolder, matlab.lang.makeValidName(pluginData.Name) + ".mat");
             taskDetail = getCommonTaskDetail(pluginData);
             taskDetail.skipReason = pluginData.SkipReason;
-            save(name, "taskDetail");
+
+            try
+                save(name, "taskDetail");
+            catch e
+                warning("buildframework:BuildSummaryPlugin:UnableToSaveTrace", "Unable to save an artifact needed for the build summary.");
+            end
         end
     end
 end

plugins/tests/tParallelizableBuildSummaryPlugin.m

@@ -0,0 +1,110 @@
+classdef tParallelizableBuildSummaryPlugin < matlab.unittest.TestCase
+
+    % Copyright 2026 The MathWorks, Inc.
+
+    properties
+        TempFolder
+        Plugin
+        Runner
+    end
+
+    methods (TestClassSetup)
+        function setupPath(testCase)
+            import matlab.unittest.fixtures.PathFixture;
+
+            testCase.applyFixture(PathFixture(fileparts(fileparts(mfilename("fullpath")))));
+        end
+    end
+
+    methods (TestMethodSetup)
+        function createPlugin(testCase)
+            import matlab.unittest.fixtures.WorkingFolderFixture;
+
+            testCase.applyFixture(WorkingFolderFixture);
+            testCase.TempFolder = pwd();
+
+            testCase.Plugin = ParallelizableBuildSummaryPlugin(TempFolder=testCase.TempFolder);
+            testCase.Runner = matlab.buildtool.BuildRunner.withNoPlugins();
+            testCase.Runner.addPlugin(testCase.Plugin);
+        end
+    end
+
+    methods (Test)
+        function runningBuildCreatesSummaryArtifact(testCase)
+            plan = buildplan();
+            plan("t1") = Task();
+            plan("t2") = Task();
+
+            testCase.Runner.run(plan, ["t1", "t2"]);
+
+            name = "buildSummary" + getenv("GITHUB_RUN_ID") + ".json";
+            testCase.verifyTrue(isfile(fullfile(testCase.TempFolder, name)));
+        end
+
+        function runningBuildCreatesSummaryArtifactWithExpectedTasks(testCase)
+            plan = buildplan();
+            plan("t1") = Task();
+            plan("t2") = Task();
+
+            testCase.Runner.run(plan, ["t1", "t2"]);
+
+            name = "buildSummary" + getenv("GITHUB_RUN_ID") + ".json";
+            f = fullfile(testCase.TempFolder, name);
+            testCase.assertTrue(isfile(f));
+
+            s = readstruct(f);
+
+            testCase.verifySize(s, [1 2]);
+            testCase.verifyEqual(s(1).name, "t1");
+            testCase.verifyEqual(s(2).name, "t2");
+        end
+
+        function summaryArtifactStatusesAreCorrect(testCase)
+            plan = buildplan();
+            plan("t1") = Task();
+            plan("t2") = Task(Actions=@()error("bam"));
+
+            testCase.Runner.run(plan, ["t1", "t2"]);
+
+            name = "buildSummary" + getenv("GITHUB_RUN_ID") + ".json";
+            f = fullfile(testCase.TempFolder, name);
+            testCase.assertTrue(isfile(f));
+
+            s = readstruct(f);
+
+            testCase.verifySize(s, [1 2]);
+
+            testCase.verifyFalse(s(1).failed);
+            testCase.verifyFalse(s(1).skipped);
+
+            testCase.verifyTrue(s(2).failed);
+            testCase.verifyFalse(s(2).skipped);
+        end
+
+        function runningBuildCreatesSummaryForTaskGroups(testCase)
+            plan = buildplan();
+            plan("g:t") = Task();
+
+            testCase.Runner.run(plan, "g:t");
+
+            name = "buildSummary" + getenv("GITHUB_RUN_ID") + ".json";
+            f = fullfile(testCase.TempFolder, name);
+
+            testCase.assertTrue(isfile(f));
+
+            s = readstruct(f);
+
+            testCase.verifySize(s, [1 1]);
+            testCase.verifyEqual(s(1).name, "g:t");
+        end
+    end
+
+end
+
+function plugin = ParallelizableBuildSummaryPlugin(varargin)
+plugin = buildframework.ParallelizableBuildSummaryPlugin(varargin{:});
+end
+
+function task = Task(varargin)
+task = matlab.buildtool.Task(varargin{:});
+end