Added a config regression test

src/test/java/de/neemann/digital/toolchain/ConfigurationTest.java

@@ -126,7 +126,7 @@ public class ConfigurationTest extends TestCase {
             throw new RuntimeException(command.getName(), e);
         }
 
-        private void clear() {
+        void clear() {
             files.clear();
             commands.clear();
         }

src/test/java/de/neemann/digital/toolchain/RegressionTest.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2019 Helmut Neemann.
+ * Use of this source code is governed by the GPL v3 license
+ * that can be found in the LICENSE file.
+ */
+package de.neemann.digital.toolchain;
+
+import de.neemann.digital.core.element.Keys;
+import de.neemann.digital.core.wiring.Clock;
+import de.neemann.digital.draw.elements.VisualElement;
+import de.neemann.digital.integration.FileScanner;
+import de.neemann.digital.integration.Resources;
+import de.neemann.digital.integration.ToBreakRunner;
+import junit.framework.TestCase;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * Runs all the commands in all configs in the hdl folder.
+ * Tests only the file creation and ensures the templates are ok.
+ * Does not ensure the generated files are correct!
+ */
+public class RegressionTest extends TestCase {
+    private ToBreakRunner br;
+    private int[] frequencies = new int[]{20, 10000000};
+    private VisualElement clock;
+    private ConfigurationTest.TestIOInterface ioInterface;
+
+    public void testSimple() throws Exception {
+        ioInterface = new ConfigurationTest.TestIOInterface();
+        br = new ToBreakRunner(new File(Resources.getRoot(), "toolchain/ff.dig"));
+        clock = br.getCircuit().findElements(v -> v.equalsDescription(Clock.DESCRIPTION)).get(0);
+        File root = new File(Resources.getRoot(), "../../main/dig/hdl");
+        int fc = new FileScanner(this::doCheck).setSuffix(".config").scan(root);
+
+        assertEquals(3, fc);
+    }
+
+    private void doCheck(File f) throws IOException, InterruptedException {
+        Configuration configuration = Configuration.load(f)
+                .setFilenameProvider(() -> new File("z/test.dig"))
+                .setLibraryProvider(br::getLibrary)
+                .setCircuitProvider(br::getCircuit)
+                .setIoInterface(ioInterface);
+
+        for (int freq : frequencies) {
+            ioInterface.clear();
+            clock.setAttribute(Keys.FREQUENCY, freq);
+            for (Command command : configuration.getCommands())
+                configuration.executeCommand(command, null).join();
+        }
+    }
+}

src/test/resources/toolchain/ff.dig

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<circuit>
+  <version>1</version>
+  <attributes/>
+  <visualElements>
+    <visualElement>
+      <elementName>D_FF</elementName>
+      <elementAttributes/>
+      <pos x="460" y="220"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Clock</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Label</string>
+          <string>CLK</string>
+        </entry>
+        <entry>
+          <string>Frequency</string>
+          <int>200</int>
+        </entry>
+        <entry>
+          <string>runRealTime</string>
+          <boolean>true</boolean>
+        </entry>
+      </elementAttributes>
+      <pos x="420" y="240"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Out</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Label</string>
+          <string>Q</string>
+        </entry>
+      </elementAttributes>
+      <pos x="560" y="220"/>
+    </visualElement>
+  </visualElements>
+  <wires>
+    <wire>
+      <p1 x="520" y="240"/>
+      <p2 x="540" y="240"/>
+    </wire>
+    <wire>
+      <p1 x="420" y="240"/>
+      <p2 x="460" y="240"/>
+    </wire>
+    <wire>
+      <p1 x="440" y="180"/>
+      <p2 x="540" y="180"/>
+    </wire>
+    <wire>
+      <p1 x="440" y="220"/>
+      <p2 x="460" y="220"/>
+    </wire>
+    <wire>
+      <p1 x="520" y="220"/>
+      <p2 x="560" y="220"/>
+    </wire>
+    <wire>
+      <p1 x="440" y="180"/>
+      <p2 x="440" y="220"/>
+    </wire>
+    <wire>
+      <p1 x="540" y="180"/>
+      <p2 x="540" y="240"/>
+    </wire>
+  </wires>
+  <measurementOrdering/>
+</circuit>