diff --git a/src/test/java/org/flag4j/sparse_tensor/CooTensorToStringTests.java b/src/test/java/org/flag4j/sparse_tensor/CooTensorToStringTests.java
new file mode 100644
index 000000000..398d81b5c
--- /dev/null
+++ b/src/test/java/org/flag4j/sparse_tensor/CooTensorToStringTests.java
@@ -0,0 +1,91 @@
+package org.flag4j.sparse_tensor;
+
+import org.flag4j.arrays.sparse.CooTensor;
+import org.flag4j.core.Shape;
+import org.flag4j.io.PrintOptions;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class CooTensorToStringTests {
+
+    static CooTensor A;
+    static Shape aShape;
+    static double[] aEntries;
+    static int[][] aIndices;
+
+    String exp;
+
+    @AfterEach
+    void reset() {
+        PrintOptions.resetAll();
+    }
+
+    @Test
+    void cooTensorToStringTests() {
+        // ----------------------- Sub-case 1 -----------------------
+        aShape = new Shape(3, 4, 2, 1, 5);
+        aEntries = new double[]{0.3369876012099134, -1.2778944176165061, 0.3003526634585191, -2.871698370528301, -0.7476330328637798, 0.0005862743350540067, 0.27050784380653264, -0.8804057494085602, 0.3433759561302188, -0.6271337465977211, -0.535101554634142, -1.9109729935630098, 0.7218896402785697, 0.8404528180001959, 0.5203214826154133, 0.3371173022767966, -0.6726729311708143, 0.08353784066932919};
+        aIndices = new int[][]{
+                {0, 0, 1, 0, 1},
+                {0, 1, 1, 0, 4},
+                {0, 2, 0, 0, 0},
+                {0, 2, 1, 0, 1},
+                {0, 3, 0, 0, 2},
+                {1, 1, 0, 0, 0},
+                {1, 1, 1, 0, 0},
+                {1, 1, 1, 0, 2},
+                {1, 2, 1, 0, 0},
+                {1, 2, 1, 0, 4},
+                {2, 0, 0, 0, 0},
+                {2, 0, 0, 0, 4},
+                {2, 0, 1, 0, 4},
+                {2, 1, 0, 0, 0},
+                {2, 1, 1, 0, 1},
+                {2, 1, 1, 0, 3},
+                {2, 1, 1, 0, 4},
+                {2, 3, 0, 0, 2}};
+        A = new CooTensor(aShape, aEntries, aIndices);
+
+        exp = "Shape: (3, 4, 2, 1, 5)\n" +
+                "Non-zero Entries: [ 0.3369876  -1.27789442  0.30035266  -2.87169837  -0.74763303  5.8627E-4  0.27050784  -0.88040575  0.34337596  ...  0.08353784 ]\n" +
+                "Non-zero Indices: [ [ 0  0  1  0  1 ]  \n" +
+                "                    [ 0  1  1  0  4 ]  \n" +
+                "                    [ 0  2  0  0  0 ]  \n" +
+                "                    [ 0  2  1  0  1 ]  \n" +
+                "                    [ 0  3  0  0  2 ]  \n" +
+                "                    [ 1  1  0  0  0 ]  \n" +
+                "                    [ 1  1  1  0  0 ]  \n" +
+                "                    [ 1  1  1  0  2 ]  \n" +
+                "                    [ 1  2  1  0  0 ]  \n" +
+                "                     ...  \n" +
+                "                    [ 2  3  0  0  2 ]  ]";
+        assertEquals(exp, A.toString());
+
+        // ----------------------- Sub-case 2 -----------------------
+        PrintOptions.setMaxRows(15);
+        PrintOptions.setMaxColumns(3);
+        PrintOptions.setPrecision(3);
+
+        exp = "Shape: (3, 4, 2, 1, 5)\n" +
+                "Non-zero Entries: [ 0.337  -1.278  ...  0.084 ]\n" +
+                "Non-zero Indices: [ [ 0  0  ...  1 ]  \n" +
+                "                    [ 0  1  ...  4 ]  \n" +
+                "                    [ 0  2  ...  0 ]  \n" +
+                "                    [ 0  2  ...  1 ]  \n" +
+                "                    [ 0  3  ...  2 ]  \n" +
+                "                    [ 1  1  ...  0 ]  \n" +
+                "                    [ 1  1  ...  0 ]  \n" +
+                "                    [ 1  1  ...  2 ]  \n" +
+                "                    [ 1  2  ...  0 ]  \n" +
+                "                    [ 1  2  ...  4 ]  \n" +
+                "                    [ 2  0  ...  0 ]  \n" +
+                "                    [ 2  0  ...  4 ]  \n" +
+                "                    [ 2  0  ...  4 ]  \n" +
+                "                    [ 2  1  ...  0 ]  \n" +
+                "                     ...  \n" +
+                "                    [ 2  3  ...  2 ]  ]";
+        assertEquals(exp, A.toString());
+    }
+}