test: add ecg print workflow acceptance

Author: Pluze

.agents/migration_guide.md

@@ -135,6 +135,9 @@ Current facts:
 - `GuiLayoutRhsPreviewTest` adds the first RHS/large-file representative
   workflow test, covering synthetic RHS indexing, automatic preview drawing,
   preview channel table population, and filter-file discovery.
+- `GuiLayoutEcgPrintTest` covers wearable ECG workflow: synthetic CSV recording
+  load, channel discovery, ROI analysis, summary-table refresh, and waveform,
+  noise, SNR, and template plot redraw.
 - `GuiLayoutBatchCropTest` covers a second image workflow shape: synthetic
   image load, center confirmation, default output-folder export, manifest
   creation, and crop-file creation.
@@ -341,8 +344,8 @@ Migration workstreams:
 
 1. Extend workflow acceptance beyond the current representatives
    (`eis`, `chrono_overlay`, `vt_resistance`, `cic`, `csc`, `focus_stack`,
-   `batch_crop`, `image_enhance`, `image_match`, `rhs_preview`) to the remaining supported app
-   families. Start with CI-sized synthetic inputs, then record which app
+   `batch_crop`, `image_enhance`, `image_match`, `rhs_preview`, `ecg_print`)
+   to the remaining supported app families. Start with CI-sized synthetic inputs, then record which app
    families merit larger manual or scheduled stress cases.
 2. Extend `tests/shared/labkitWorkflowDriver.m` only for app-neutral semantic
    operations proven by real workflow tests. Avoid vague helpers that guess app

tests/cases/gui/apps/wearable/ecg_print/GuiLayoutEcgPrintTest.m

@@ -30,4 +30,75 @@ function ecg_print_layout(testCase)
                 h.axesSpec('Template + Residual Band', 'Time from peak (s)', 'Amplitude')});
         end
     end
+
+    methods (Test, TestTags = {'GUI', 'Workflow'})
+        function ecg_print_workflow_loads_analyzes_and_plots_recording(testCase)
+            setupLabKitTestPath();
+            h = guiTestHelpers();
+            h.assertUifigureAvailable();
+            cleanup = onCleanup(@() h.closeAllFigures());
+
+            folder = tempname;
+            mkdir(folder);
+            folderCleanup = onCleanup(@() removeTempFolder(folder));
+            recordingPath = fullfile(folder, 'synthetic_ecg.csv');
+            writeSyntheticEcgCsv(recordingPath);
+
+            fig = h.launchFigure('labkit_ECGPrint_app', ...
+                'ECG Signal Print + SNR Explorer');
+            driver = labkitWorkflowDriver(fig);
+            driver.chooseFiles('recording', recordingPath);
+
+            driver.click('Open recording');
+            driver.dropdown('Local peaks');
+            driver.click('Analyze current ROI');
+
+            ui = driver.registry();
+            testCase.verifyTrue(contains(string(ui.controls.recording.status.Value), ...
+                'synthetic_ecg.csv'), ...
+                'ECG Print workflow should show the loaded recording path.');
+            importStatus = string(ui.controls.importStatus.valueHandle.Value);
+            testCase.verifyFalse(contains(importStatus, 'Parse failed'), ...
+                'ECG Print workflow should parse the synthetic recording.');
+            testCase.verifyFalse(contains(importStatus, 'Open a recording'), ...
+                'ECG Print workflow should leave the empty import state after loading.');
+            testCase.verifyTrue(any(strcmp(ui.controls.channel.valueHandle.Items, 'ECG')), ...
+                'ECG Print workflow should populate the ECG channel choice.');
+
+            data = driver.tableData('summaryTable');
+            metricNames = string(data(:, 1));
+            testCase.verifyTrue(any(metricNames == "Detected peaks"), ...
+                'ECG Print workflow should report detected peaks after analysis.');
+            testCase.verifyTrue(any(metricNames == "Mean SNR (dB)"), ...
+                'ECG Print workflow should report SNR summary after analysis.');
+            testCase.verifyGreaterThan(numel(ui.controls.previewAxes.axesById.wave.Children), 0, ...
+                'ECG Print workflow should draw the waveform plot.');
+            testCase.verifyGreaterThan(numel(ui.controls.previewAxes.axesById.noise.Children), 0, ...
+                'ECG Print workflow should draw the noise plot.');
+            testCase.verifyGreaterThan(numel(ui.controls.previewAxes.axesById.snr.Children), 0, ...
+                'ECG Print workflow should draw the SNR plot.');
+            testCase.verifyGreaterThan(numel(ui.controls.previewAxes.axesById.template.Children), 0, ...
+                'ECG Print workflow should draw the template plot.');
+        end
+    end
+end
+
+function writeSyntheticEcgCsv(filepath)
+    fs = 2000;
+    durationSec = 8;
+    time = (0:(durationSec * fs - 1)).' ./ fs;
+    ecg = 0.05 .* sin(2 .* pi .* 1.7 .* time) + ...
+        0.02 .* sin(2 .* pi .* 23 .* time);
+    for peakTime = 1:durationSec - 1
+        ecg = ecg + 1.8 .* exp(-((time - peakTime) ./ 0.018).^2);
+        ecg = ecg - 0.25 .* exp(-((time - peakTime - 0.045) ./ 0.026).^2);
+    end
+    T = table(time, ecg, 'VariableNames', {'time_s', 'ECG'});
+    writetable(T, filepath);
+end
+
+function removeTempFolder(folder)
+    if exist(folder, 'dir') == 7
+        rmdir(folder, 's');
+    end
 end