Build out MATLAB test framework and core integration coverage

Tests/03_receive/Scope_test.m

@@ -1,11 +1,49 @@
-classdef Scope_test < matlab.unittest.TestCase
-    % Test class for Scope
+classdef Scope_test < IMDDTestCase
+    methods (Test, TestTags = {'unit', 'fast', 'receive', 'scope'})
+        function quantizeMapsRealSignalToExpectedGrid(testCase)
+            scope = makeScope(10, 10, 2, 0, true);
+            xin = (0:9).';
 
-    methods (Test)
-        function testExample(testCase)
-            % Example test case for Scope
-            % Add your test code here
-            testCase.verifyTrue(true);
+            quantized = scope.quantize(xin);
+
+            expected = [0; 0; 8/3; 8/3; 16/3; 16/3; 16/3; 8; 8; 8];
+            testCase.verifyEqual(quantized, expected, "AbsTol", 1e-12);
+        end
+
+        function process_ResamplesQuantizesAndSubtractsDc(testCase)
+            scope = makeScope(40, 20, 3, 0, true);
+            xin = (1:40).';
+
+            yout = scope.process_(xin);
+
+            expected = scope.quantize(resample(xin, scope.fadc, scope.fsimu));
+            expected = expected - mean(expected, 1);
+
+            testCase.verifyEqual(length(yout), 20);
+            testCase.verifyEqual(yout, expected, "AbsTol", 1e-12);
+            testCase.verifyEqual(mean(yout), 0, "AbsTol", 1e-12);
+        end
+
+        function processWithoutDcBlockingPreservesQuantizedMean(testCase)
+            scope = makeScope(40, 20, 3, 0, false);
+            xin = (1:40).';
+
+            yout = scope.process_(xin);
+
+            expected = scope.quantize(resample(xin, scope.fadc, scope.fsimu));
+
+            testCase.verifyEqual(yout, expected, "AbsTol", 1e-12);
+            testCase.verifyGreaterThan(abs(mean(yout)), 1e-12);
         end
     end
 end
+
+function scope = makeScope(fsimu, fadc, adcresolution, quantbuffer, block_dc)
+    scope = Scope( ...
+        "fsimu", fsimu, ...
+        "fadc", fadc, ...
+        "adcresolution", adcresolution, ...
+        "quantbuffer", quantbuffer, ...
+        "block_dc", block_dc, ...
+        "H_lpf", struct('fs', fadc));
+end