test: DRY and fixed unexpected substitution

Author: jmatsu

sdk/src/test/java/com/deploygate/sdk/HostAppTest.java

@@ -16,6 +16,8 @@
 
 @RunWith(AndroidJUnit4.class)
 public class HostAppTest {
+    private static final int FULL_BIT = (1 << 5) - 1;
+
     @NonNull
     private Context context;
 
@@ -35,7 +37,7 @@ public void default_properties() {
         Truth.assertThat(app.packageName).isEqualTo("com.deploygate.sdk.test");
         Truth.assertThat(app.sdkVersion).isEqualTo(4);
         Truth.assertThat(app.sdkArtifactVersion).isEqualTo("4.7.0");
-        Truth.assertThat(app.activeFeatureFlags).isEqualTo(1 << 5 - 1);
+        Truth.assertThat(app.activeFeatureFlags).isEqualTo(FULL_BIT);
         Truth.assertThat(app.canUseDeviceCapture()).isTrue();
     }
 
@@ -75,14 +77,14 @@ public void can_read_DeployGateSdkConfiguration_setCaptureEnabled() {
         );
 
         Truth.assertThat(app1.canUseDeviceCapture()).isTrue();
-        Truth.assertThat(app1.activeFeatureFlags).isEqualTo(1 << 5 - 1);
+        Truth.assertThat(app1.activeFeatureFlags).isEqualTo(FULL_BIT);
 
         HostApp app2 = new HostApp(
                 context,
                 new DeployGateSdkConfiguration.Builder().setCaptureEnabled(false).build()
         );
 
         Truth.assertThat(app2.canUseDeviceCapture()).isFalse();
-        Truth.assertThat(app2.activeFeatureFlags).isEqualTo((1 << 5 - 1) - BuildConfig.DEVICE_CAPTURE);
+        Truth.assertThat(app2.activeFeatureFlags).isEqualTo(FULL_BIT - BuildConfig.DEVICE_CAPTURE);
     }
 }