1 files changed, 88 insertions, 0 deletions
diff --git a/libphonenumber/test/com/google/i18n/phonenumbers/metadata/init/MetadataParserTest.java b/libphonenumber/test/com/google/i18n/phonenumbers/metadata/init/MetadataParserTest.java
new file mode 100644
index 00000000..22c52e29
--- /dev/null
+++ b/libphonenumber/test/com/google/i18n/phonenumbers/metadata/init/MetadataParserTest.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2022 The Libphonenumber Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.i18n.phonenumbers.metadata.init;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.junit.Assert.assertThrows;
+
+import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadata;
+import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadataCollection;
+import com.google.i18n.phonenumbers.metadata.PhoneMetadataCollectionUtil;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Collection;
+import junit.framework.TestCase;
+import org.junit.function.ThrowingRunnable;
+
+public final class MetadataParserTest extends TestCase {
+
+  private static final MetadataParser metadataParser = MetadataParser.newStrictParser();
+
+  public void test_parse_shouldThrowExceptionForNullInput() {
+    assertThrows(
+        IllegalArgumentException.class,
+        new ThrowingRunnable() {
+          @Override
+          public void run() {
+            metadataParser.parse(null);
+          }
+        });
+  }
+
+  public void test_parse_shouldThrowExceptionForEmptyInput() {
+    final InputStream emptyInput = new ByteArrayInputStream(new byte[0]);
+
+    assertThrows(
+        IllegalStateException.class,
+        new ThrowingRunnable() {
+          @Override
+          public void run() {
+            metadataParser.parse(emptyInput);
+          }
+        });
+  }
+
+  public void test_parse_shouldThrowExceptionForInvalidInput() {
+    final InputStream invalidInput = new ByteArrayInputStream("Some random input".getBytes(UTF_8));
+
+    assertThrows(
+        IllegalStateException.class,
+        new ThrowingRunnable() {
+          @Override
+          public void run() {
+            metadataParser.parse(invalidInput);
+          }
+        });
+  }
+
+  public void test_parse_shouldParseValidInput() throws IOException {
+    InputStream input = PhoneMetadataCollectionUtil.toInputStream(
+        PhoneMetadataCollection.newBuilder()
+            .addMetadata(PhoneMetadata.newBuilder().setId("id").build()));
+
+    Collection<PhoneMetadata> actual = metadataParser.parse(input);
+
+    assertEquals(1, actual.size());
+  }
+
+  public void test_parse_shouldReturnEmptyCollectionForNullInput() {
+    Collection<PhoneMetadata> actual = MetadataParser.newLenientParser().parse(null);
+
+    assertTrue(actual.isEmpty());
+  }
+}
+\ No newline at end of file