--- /dev/null
+package android.net.metrics
+
+import android.net.metrics.DhcpErrorEvent.errorCodeWithOption
+import android.net.metrics.DhcpErrorEvent.DHCP_INVALID_OPTION_LENGTH
+import androidx.test.filters.SmallTest
+import androidx.test.runner.AndroidJUnit4
+import com.android.internal.util.TestUtils.parcelingRoundTrip
+import java.lang.reflect.Modifier
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.junit.runner.RunWith
+
+private const val TEST_ERROR_CODE = 12345
+/**
+ * DHCP Optional Type: DHCP Subnet Mask (Copy from DhcpPacket.java)
+ */
+private const val DHCP_SUBNET_MASK = 1
+
+@RunWith(AndroidJUnit4::class)
+@SmallTest
+class DhcpErrorEventTest {
+
+ @Test
+ fun testConstructor() {
+ val event = DhcpErrorEvent(TEST_ERROR_CODE)
+ assertEquals(TEST_ERROR_CODE, event.errorCode)
+ }
+
+ @Test
+ fun testParcelUnparcel() {
+ val event = DhcpErrorEvent(TEST_ERROR_CODE)
+ val parceled = parcelingRoundTrip(event)
+ assertEquals(TEST_ERROR_CODE, parceled.errorCode)
+ }
+
+ @Test
+ fun testErrorCodeWithOption() {
+ val errorCode = errorCodeWithOption(DHCP_INVALID_OPTION_LENGTH, DHCP_SUBNET_MASK);
+ assertTrue((DHCP_INVALID_OPTION_LENGTH and errorCode) == DHCP_INVALID_OPTION_LENGTH);
+ assertTrue((DHCP_SUBNET_MASK and errorCode) == DHCP_SUBNET_MASK);
+ }
+
+ @Test
+ fun testToString() {
+ val names = listOf("L2_ERROR", "L3_ERROR", "L4_ERROR", "DHCP_ERROR", "MISC_ERROR")
+ val errorFields = DhcpErrorEvent::class.java.declaredFields.filter {
+ it.type == Int::class.javaPrimitiveType
+ && Modifier.isPublic(it.modifiers) && Modifier.isStatic(it.modifiers)
+ && it.name !in names
+ }
+
+ errorFields.forEach {
+ val intValue = it.getInt(null)
+ val stringValue = DhcpErrorEvent(intValue).toString()
+ assertTrue("Invalid string for error 0x%08X (field %s): %s".format(intValue, it.name,
+ stringValue),
+ stringValue.contains(it.name))
+ }
+ }
+
+ @Test
+ fun testToString_InvalidErrorCode() {
+ assertNotNull(DhcpErrorEvent(TEST_ERROR_CODE).toString())
+ }
+}
\ No newline at end of file
}
}
- // TODO : fetch the creator through reflection or something instead of passing it
- public static <T extends Parcelable, C extends Parcelable.Creator<T>>
- void assertParcelingIsLossless(T source, C creator) {
+ /**
+ * Return a new instance of {@code T} after being parceled then unparceled.
+ */
+ public static <T extends Parcelable> T parcelingRoundTrip(T source) {
+ final Parcelable.Creator<T> creator;
+ try {
+ creator = (Parcelable.Creator<T>) source.getClass().getField("CREATOR").get(null);
+ } catch (IllegalAccessException | NoSuchFieldException e) {
+ fail("Missing CREATOR field: " + e.getMessage());
+ return null;
+ }
Parcel p = Parcel.obtain();
source.writeToParcel(p, /* flags */ 0);
p.setDataPosition(0);
p = Parcel.obtain();
p.unmarshall(marshalled, 0, marshalled.length);
p.setDataPosition(0);
- T dest = creator.createFromParcel(p);
- assertEquals(source, dest);
+ return creator.createFromParcel(p);
+ }
+
+ /**
+ * Assert that after being parceled then unparceled, {@code source} is equal to the original
+ * object.
+ */
+ public static <T extends Parcelable> void assertParcelingIsLossless(T source) {
+ assertEquals(source, parcelingRoundTrip(source));
}
}