diff options
Diffstat (limited to 'javatests/com/google/gerrit/json/JsonEnumMappingTest.java')
-rw-r--r-- | javatests/com/google/gerrit/json/JsonEnumMappingTest.java | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/javatests/com/google/gerrit/json/JsonEnumMappingTest.java b/javatests/com/google/gerrit/json/JsonEnumMappingTest.java new file mode 100644 index 0000000000..6e57b011ef --- /dev/null +++ b/javatests/com/google/gerrit/json/JsonEnumMappingTest.java @@ -0,0 +1,84 @@ +// Copyright (C) 2019 The Android Open Source Project +// +// 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.gerrit.json; + +import static com.google.common.truth.Truth.assertThat; + +import com.google.gson.Gson; +import org.junit.Test; + +public class JsonEnumMappingTest { + + // Use the regular, pre-configured Gson object we use throughout the Gerrit server to ensure that + // the EnumTypeAdapterFactory is properly set up. + private final Gson gson = OutputFormat.JSON.newGson(); + + @Test + public void nullCanBeWrittenAndParsedBack() { + String resultingJson = gson.toJson(null, TestEnum.class); + TestEnum value = gson.fromJson(resultingJson, TestEnum.class); + assertThat(value).isNull(); + } + + @Test + public void enumValueCanBeWrittenAndParsedBack() { + String resultingJson = gson.toJson(TestEnum.ONE, TestEnum.class); + TestEnum value = gson.fromJson(resultingJson, TestEnum.class); + assertThat(value).isEqualTo(TestEnum.ONE); + } + + @Test + public void enumValueCanBeParsed() { + TestData data = gson.fromJson("{\"value\":\"ONE\"}", TestData.class); + assertThat(data.value).isEqualTo(TestEnum.ONE); + } + + @Test + public void mixedCaseEnumValueIsTreatedAsUnset() { + TestData data = gson.fromJson("{\"value\":\"oNe\"}", TestData.class); + assertThat(data.value).isNull(); + } + + @Test + public void lowerCaseEnumValueIsTreatedAsUnset() { + TestData data = gson.fromJson("{\"value\":\"one\"}", TestData.class); + assertThat(data.value).isNull(); + } + + @Test + public void notExistingEnumValueIsTreatedAsUnset() { + TestData data = gson.fromJson("{\"value\":\"FOUR\"}", TestData.class); + assertThat(data.value).isNull(); + } + + @Test + public void emptyEnumValueIsTreatedAsUnset() { + TestData data = gson.fromJson("{\"value\":\"\"}", TestData.class); + assertThat(data.value).isNull(); + } + + private static class TestData { + TestEnum value; + + public TestData(TestEnum value) { + this.value = value; + } + } + + private enum TestEnum { + ONE, + TWO + } +} |