fix unit tests #1593

Author: jantje

io.sloeber.core/META-INF/MANIFEST.MF

@@ -21,7 +21,7 @@ Require-Bundle: org.eclipse.cdt.managedbuilder.core,
  org.eclipse.ui.console,
  org.eclipse.debug.core,
  org.eclipse.core.variables,
- org.apache.commons.io,
+ org.apache.commons.commons-io,
  org.apache.commons.compress
 Export-Package: cc.arduino.packages;x-internal:=true,
  cc.arduino.packages.discoverers;x-internal:=true,

io.sloeber.product/sloeber.target

@@ -30,7 +30,7 @@
 			<unit id="org.eclipse.ecf.core.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.wildwebdeveloper.feature.feature.group" version="0.0.0"/>
 		</location>
-				<location includeDependencyDepth="none" includeDependencyScopes="compile" includeSource="true" label="DirectFromMaven" missingManifest="error" type="Maven">
+		<location includeDependencyDepth="none" includeDependencyScopes="compile" includeSource="true" label="DirectFromMaven" missingManifest="error" type="Maven">
 			<dependencies>
 				<dependency>
 					<groupId>com.google.code.gson</groupId>
@@ -41,13 +41,13 @@
 				<dependency>
 					<groupId>org.apache.commons</groupId>
 					<artifactId>commons-compress</artifactId>
-					<version>1.23.0</version>
+					<version>1.25.0</version>
 					<type>jar</type>
 				</dependency>
 				<dependency>
 					<groupId>commons-io</groupId>
 					<artifactId>commons-io</artifactId>
-					<version>2.13.0</version>
+					<version>2.15.0</version>
 					<type>jar</type>
 				</dependency>
 			</dependencies>

io.sloeber.tests/src/io/sloeber/core/Shared.java

@@ -351,25 +351,22 @@ private static void extractFile(ZipInputStream zipIn, String filePath) throws IO
      * make the strings equal.
      */
     public static String[] difference(String a, String b) {
-        return diffHelper(a, b, new HashMap<>());
-    }
-
-    @SuppressWarnings("boxing")
-    private static String[] diffHelper(String a, String b, Map<Long, String[]> lookup) {
-        return lookup.computeIfAbsent(((long) a.length()) << 32 | b.length(), k -> {
-            if (a.isEmpty() || b.isEmpty()) {
-                return new String[] { a, b };
-            } else if (a.charAt(0) == b.charAt(0)) {
-                return diffHelper(a.substring(1), b.substring(1), lookup);
+        int startDiff = 1;
+        while (a.substring(0, startDiff).equals(b.substring(0, startDiff))) {
+            startDiff++;
+        }
+        int endDiff = startDiff + 20;
+        if (startDiff > 10) {
+            int nl = a.substring(0, startDiff).lastIndexOf('\n');
+            if (nl != -1) {
+                startDiff = nl;
             } else {
-                String[] aa = diffHelper(a.substring(1), b, lookup);
-                String[] bb = diffHelper(a, b.substring(1), lookup);
-                if (aa[0].length() + aa[1].length() < bb[0].length() + bb[1].length()) {
-                    return new String[] { a.charAt(0) + aa[0], aa[1] };
-                }
-                return new String[] { bb[0], b.charAt(0) + bb[1] };
+                startDiff = startDiff - 5;
             }
-        });
+        } else {
+            startDiff = 0;
+        }
+        return new String[] { a.substring(startDiff, endDiff), b.substring(startDiff, endDiff) };
     }
-    //end of copied from https://stackoverflow.com/questions/18344721/extract-the-difference-between-two-strings-in-java
+
 }

io.sloeber.tests/src/io/sloeber/junit/AllJUnitTests.java

@@ -4,9 +4,17 @@
 import org.junit.runners.Suite;
 import org.junit.runners.Suite.SuiteClasses;
 
+/*
+ * these junit tests need to be run as a junit plugin
+ * 
+ * 
+ * TxtWorkAroundRegression.class is not included as it needs a special setup to run
+ * The special setup is a arduinoplugin folder with "old" sloeber.txt files so the differences can be spotted
+ */
+
 @RunWith(Suite.class)
 @SuiteClasses({ TestPlatformWorkAround.class, TestSerialPlotterFilter.class, TestTxtFile.class, TestWorkAround.class,
-        TxtWorkAroundRegression.class, TestVersionCompare.class })
+        TestVersionCompare.class })
 public class AllJUnitTests {
     //no need for code here
 }