1 files changed, 66 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.compare.tests/src/org/eclipse/emf/compare/tests/checkers/MergeDependenciesChecker.java b/plugins/org.eclipse.emf.compare.tests/src/org/eclipse/emf/compare/tests/checkers/MergeDependenciesChecker.java
new file mode 100644
index 000000000..f59c143b2
--- /dev/null
+++ b/plugins/org.eclipse.emf.compare.tests/src/org/eclipse/emf/compare/tests/checkers/MergeDependenciesChecker.java
@@ -0,0 +1,66 @@
+package org.eclipse.emf.compare.tests.checkers;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.Set;
+
+import org.eclipse.emf.compare.Diff;
+import org.eclipse.emf.compare.internal.merge.MergeDependenciesUtil;
+import org.eclipse.emf.compare.merge.IMerger;
+
+@SuppressWarnings("restriction")
+public class MergeDependenciesChecker {
+
+	private IMerger.Registry registry;
+
+	private Diff diff;
+
+	private int nbMerges = 0;
+
+	private int nbDeletions = 0;
+
+	private boolean isFromRight = true;
+
+	private MergeDependenciesChecker() {
+		// Do nothing
+	}
+
+	private MergeDependenciesChecker(IMerger.Registry mergerRegistry, Diff testedDiff) {
+		this.registry = mergerRegistry;
+		this.diff = testedDiff;
+	}
+
+	public static MergeDependenciesChecker getDependenciesChecker(IMerger.Registry mergerRegistry,
+			Diff testedDiff) {
+		return new MergeDependenciesChecker(mergerRegistry, testedDiff);
+	}
+
+	public MergeDependenciesChecker implies(int nbResultingMerges) {
+		this.nbMerges = nbResultingMerges;
+		return this;
+	}
+
+	public MergeDependenciesChecker rejects(int nbResultingRejections) {
+		this.nbDeletions = nbResultingRejections;
+		return this;
+	}
+
+	public MergeDependenciesChecker rightToLeft() {
+		this.isFromRight = true;
+		return this;
+	}
+
+	public MergeDependenciesChecker leftToRight() {
+		this.isFromRight = false;
+		return this;
+	}
+
+	public void check() {
+		Set<Diff> allResultingMerges = MergeDependenciesUtil.getAllResultingMerges(diff, registry,
+				this.isFromRight);
+		Set<Diff> allResultingRejections = MergeDependenciesUtil.getAllResultingRejections(diff, registry,
+				this.isFromRight);
+		assertEquals(this.nbMerges, allResultingMerges.size());
+		assertEquals(this.nbDeletions, allResultingRejections.size());
+	}
+}