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1 files changed, 39 insertions, 0 deletions

diff --git a/config-model/src/test/java/helpers/CompareConfigTestHelper.java b/config-model/src/test/java/helpers/CompareConfigTestHelper.java
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+++ b/config-model/src/test/java/helpers/CompareConfigTestHelper.java
@@ -0,0 +1,39 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package helpers;
+
+import com.google.common.base.Joiner;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Lists;
+import com.yahoo.io.IOUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Vegard Sjonfjell
+ */
+public class CompareConfigTestHelper {
+
+    public static void assertSerializedConfigFileEquals(String filename, String actual) throws IOException {
+        assertSerializedConfigEquals(IOUtils.readFile(new File(filename)), actual);
+    }
+
+    // Written this way to compare order independently but output error with order preserved
+    // Note that this means that if a test fails you'll also see spurious differences in the comparison
+    // from lines which are present in both but at different locations.
+    public static void assertSerializedConfigEquals(String expected, String actual) {
+        if ( ! sortLines(expected.trim()).equals(sortLines(actual.trim())))
+            assertEquals(expected, actual);
+    }
+
+    private static String sortLines(String fileData) {
+        final List<String> lines = Lists.newArrayList(Splitter.on('\n').split(fileData));
+        Collections.sort(lines);
+        return Joiner.on('\n').join(lines);
+    }
+
+}