diff --git a/src/Map.java b/src/Map.java
index 1abf7c6..ae52adf 100644
--- a/src/Map.java
+++ b/src/Map.java
@@ -26,12 +26,12 @@
 	public double getLatitude() {
 		return latitude.getValue();
 	}
-    // �����X�V��ON/OFF���\�b�h�Ǝ蓮�X�V���\�b�h��Map�N���X�ŌĂяo����悤�ɂ���
-    public void setAutoUpdateEnabled(boolean enabled) {
-        presenter.setAutoUpdateEnabled(enabled);
+	 // �ȉ��̃��\�b�h��Map�N���X�ɒlj�
+    public void setAutoUpdate(boolean autoUpdate) {
+        presenter.setAutoUpdateEnabled(autoUpdate);
     }
 
-    public void manualUpdate() {
+    public void updateManually() {
         presenter.manualUpdate();
     }
 }
\ No newline at end of file
diff --git a/src/TestManualUpdate.java b/src/TestManualUpdate.java
new file mode 100644
index 0000000..dfb4613
--- /dev/null
+++ b/src/TestManualUpdate.java
@@ -0,0 +1,69 @@
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+public class TestManualUpdate {
+
+	@Test
+	public void test() {
+		// �k��35.0�x�C���o135.0�x�C�����X�V���[�h�ɐݒ肷��
+		Map map = new Map();
+		map.updateGPS(35.0, 135.0);
+		map.setAutoUpdate(true);
+		double lati = map.getLatitude();
+		double longi = map.getLongitude();
+		double mapLati = map.getMapLatitude();
+		double mapLongi = map.getMapLongitude();
+		assertEquals(lati, 35.0, 0.0001);
+		assertEquals(longi, 135.0, 0.0001);
+		assertEquals(mapLati, 35.0, 0.0001);
+		assertEquals(mapLongi, 135.0, 0.0001);
+
+		// �k��35.1�x�C���o135.1�x�Ɉړ�����
+		map.updateGPS(35.1, 135.1);
+		lati = map.getLatitude();
+		longi = map.getLongitude();
+		mapLati = map.getMapLatitude();
+		mapLongi = map.getMapLongitude();
+		assertEquals(lati, 35.1, 0.0001);
+		assertEquals(longi, 135.1, 0.0001);
+		assertEquals(mapLati, 35.1, 0.0001);
+		assertEquals(mapLongi, 135.1, 0.0001);
+
+		// �蓮�X�V���s��
+		map.updateManually();
+		lati = map.getLatitude();
+		longi = map.getLongitude();
+		mapLati = map.getMapLatitude();
+		mapLongi = map.getMapLongitude();
+		assertEquals(lati, 35.1, 0.0001);
+		assertEquals(longi, 135.1, 0.0001);
+		assertEquals(mapLati, 35.1, 0.0001);
+		assertEquals(mapLongi, 135.1, 0.0001);
+
+		// �蓮�X�V���[�h�ɐݒ肷��
+		map.setAutoUpdate(false);
+
+		// �k��35.0�x�C���o135.0�x�ɖ߂�
+		map.updateGPS(35.0, 135.0);
+		lati = map.getLatitude();
+		longi = map.getLongitude();
+		mapLati = map.getMapLatitude();
+		mapLongi = map.getMapLongitude();
+		assertEquals(lati, 35.0, 0.0001);
+		assertEquals(longi, 135.0, 0.0001);
+		assertEquals(mapLati, 35.1, 0.0001);		// �蓮�X�V�̂��ߒl�͕ω����Ȃ�
+		assertEquals(mapLongi, 135.1, 0.0001);		// �蓮�X�V�̂��ߒl�͕ω����Ȃ�
+
+		// �蓮�X�V���s��
+		map.updateManually();
+		lati = map.getLatitude();
+		longi = map.getLongitude();
+		mapLati = map.getMapLatitude();
+		mapLongi = map.getMapLongitude();
+		assertEquals(lati, 35.0, 0.0001);
+		assertEquals(longi, 135.0, 0.0001);
+		assertEquals(mapLati, 35.0, 0.0001);		// �蓮�X�V�ɂ���Ēl���X�V�����
+		assertEquals(mapLongi, 135.0, 0.0001);		// �蓮�X�V�ɂ���Ēl���X�V�����
+	}
+}
\ No newline at end of file