diff --git a/app/src/test/java/sudoku/AppTest.java b/app/src/test/java/sudoku/AppTest.java
deleted file mode 100644
index d687b40..0000000
--- a/app/src/test/java/sudoku/AppTest.java
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * This Java source file was generated by the Gradle 'init' task.
- */
-package sudoku;
-
-import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.*;
-
-class AppTest {
-    @Test void appHasAGreeting() {
-        App classUnderTest = new App();
-        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
-    }
-}
diff --git a/app/src/test/java/sudoku/SolverTest.java b/app/src/test/java/sudoku/SolverTest.java
new file mode 100644
index 0000000..ae16b4b
--- /dev/null
+++ b/app/src/test/java/sudoku/SolverTest.java
@@ -0,0 +1,12 @@
+package sudoku;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class SolverTest {
+    @Test void boardTest() {
+        Solver solver = new Solver();
+        solver.solve();
+        assertTrue(solver.isSolved());
+    }
+}