diff --git a/tests/src/core/MeshRenderer.test.ts b/tests/src/core/MeshRenderer.test.ts
index 7338478069..726fdcb4a4 100644
--- a/tests/src/core/MeshRenderer.test.ts
+++ b/tests/src/core/MeshRenderer.test.ts
@@ -1,4 +1,13 @@
-import { BlinnPhongMaterial, MeshRenderer, PrimitiveMesh, Entity, Camera, ModelMesh } from "@galacean/engine-core";
+import {
+  BlinnPhongMaterial,
+  PBRMaterial,
+  UnlitMaterial,
+  MeshRenderer,
+  PrimitiveMesh,
+  Entity,
+  Camera,
+  ModelMesh
+} from "@galacean/engine-core";
 import { Vector3 } from "@galacean/engine-math";
 import { WebGLEngine } from "@galacean/engine-rhi-webgl";
 import { describe, beforeAll, expect, it } from "vitest";
@@ -108,6 +117,132 @@ describe("MeshRenderer", async function () {
     cloneCube.destroy();
   });
 
+  it("receiveShadows", () => {
+    // Test that set and get receiveShadows work correctly.
+    const mr = cubeEntity.getComponent(MeshRenderer);
+    mr.receiveShadows = true;
+    expect(mr.receiveShadows).to.be.true;
+
+    // Test that set false value works correctly.
+    mr.receiveShadows = false;
+    expect(mr.receiveShadows).to.be.false;
+
+    // Test that repeated assignment works correctly.
+    mr.receiveShadows = true;
+    expect(mr.receiveShadows).to.be.true;
+  });
+
+  it("material", () => {
+    const mr = cubeEntity.getComponent(MeshRenderer);
+
+    // Add BlinnPhong, Unlit and PBR materials.
+    mr.setMaterial(0, new BlinnPhongMaterial(engine));
+    mr.setMaterial(0, new UnlitMaterial(engine));
+    mr.setMaterial(1, new PBRMaterial(engine));
+
+    // Test that get material works correctly.
+    expect(mr.getMaterial()).to.be.instanceOf(UnlitMaterial);
+    expect(mr.getMaterial(1)).to.be.instanceOf(PBRMaterial);
+
+    // Test that return null when index is out of range.
+    expect(mr.getMaterial(2)).to.be.null;
+    expect(mr.getMaterial(-1)).to.be.null;
+
+    mr.getInstanceMaterials();
+    mr.setMaterial(1, new UnlitMaterial(engine));
+    expect(mr.getMaterial(1)).to.be.instanceOf(UnlitMaterial);
+  });
+
+  it("materials", () => {
+    const mr = cubeEntity.getComponent(MeshRenderer);
+
+    // Test that set materials works correctly.
+    mr.setMaterials([new UnlitMaterial(engine), new PBRMaterial(engine), null, new BlinnPhongMaterial(engine)]);
+
+    // Test that get materials works correctly.
+    const materials = mr.getMaterials();
+    expect(materials[0]).to.be.instanceOf(UnlitMaterial);
+    expect(materials[1]).to.be.instanceOf(PBRMaterial);
+    expect(materials[2]).to.be.null;
+    expect(materials[3]).to.be.instanceOf(BlinnPhongMaterial);
+  });
+
+  it("materialCount", () => {
+    // Test that get materialCount works correctly.
+    const mr = cubeEntity.getComponent(MeshRenderer);
+    mr.setMaterials([new UnlitMaterial(engine), new PBRMaterial(engine), new BlinnPhongMaterial(engine)]);
+    mr.getInstanceMaterials();
+    expect(mr.materialCount).to.be.equal(3);
+
+    // Test that set materialCount works correctly.
+    mr.materialCount = 2;
+    expect(mr.materialCount).to.be.equal(2);
+
+    // Test that set materialCount with negative value works correctly.
+    mr.materialCount = 0;
+    expect(mr.materialCount).to.be.equal(0);
+  });
+
+  it("getInstanceMaterial", () => {
+    const mr = cubeEntity.getComponent(MeshRenderer);
+
+    // Test that getInstanceMaterial works correctly.
+    expect(mr.getInstanceMaterial()).to.be.null;
+
+    const unlitMaterial = new UnlitMaterial(engine);
+    const pbrMaterial = new PBRMaterial(engine);
+    mr.setMaterials([unlitMaterial, null, pbrMaterial]);
+
+    // Test that getInstanceMaterial works correctly.
+    const material = mr.getInstanceMaterial();
+    expect(material).to.be.instanceOf(UnlitMaterial);
+    expect(material.name).to.be.equal("undefined(Instance)");
+
+    // Test that material0 is same as material.
+    const material0 = mr.getInstanceMaterial(0);
+    expect(material0).to.be.eq(material);
+
+    const material2 = mr.getInstanceMaterial(2);
+    expect(material2).to.be.instanceOf(PBRMaterial);
+    expect(material2.name).to.be.equal("undefined(Instance)");
+
+    expect(mr.getInstanceMaterial(1)).to.be.null;
+
+    // Test that return null when index is out of range.
+    expect(mr.getInstanceMaterial(3)).to.be.null;
+    expect(mr.getInstanceMaterial(-1)).to.be.null;
+  });
+
+  it("getInstanceMaterials", () => {
+    const mr = cubeEntity.getComponent(MeshRenderer);
+    mr.setMaterials([new UnlitMaterial(engine), new PBRMaterial(engine)]);
+
+    // Test that getInstanceMaterials works correctly.
+    const materials = mr.getInstanceMaterials();
+    expect(materials[0]).to.be.instanceOf(UnlitMaterial);
+    expect(materials[0].name).to.be.equal("undefined(Instance)");
+    expect(materials[1]).to.be.instanceOf(PBRMaterial);
+    expect(materials[1].name).to.be.equal("undefined(Instance)");
+  });
+
+  it("priority", () => {
+    const mr = cubeEntity.getComponent(MeshRenderer);
+
+    // Test that set and get priority works correctly.
+    expect(mr.priority).to.be.equal(0);
+
+    mr.priority = 1;
+    expect(mr.priority).to.be.equal(1);
+
+    // Test that repeated assignment works correctly.
+    mr.priority = 1;
+    expect(mr.priority).to.be.equal(1);
+
+    // Test that set negative value works correctly.
+    mr.priority = -1;
+    expect(mr.priority).to.be.equal(-1);
+  });
+
   it("destroy", () => {
     const mr = cubeEntity.getComponent(MeshRenderer);
     cubeEntity.destroy();