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Merge pull request #104 from Netflix/feature/codegen-constants-102
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44 changes: 44 additions & 0 deletions
44
...e/src/main/kotlin/com/netflix/graphql/dgs/codegen/generators/shared/CodeGeneratorUtils.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| * | ||
| * Copyright 2020 Netflix, Inc. | ||
| * | ||
| * 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. | ||
| * | ||
| */ | ||
|
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| package com.netflix.graphql.dgs.codegen.generators.shared | ||
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| import org.apache.commons.lang.StringUtils | ||
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| object CodeGeneratorUtils { | ||
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| enum class Case { | ||
| LOWERCASE, | ||
| UPPERCASE | ||
| } | ||
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| /** | ||
| * Transforms the input string, that should express a camel case notation, into one that expresses a snake case notation. | ||
| * | ||
| * @see StringUtils.splitByCharacterTypeCamelCase | ||
| * */ | ||
| fun camelCasetoSnakeCase(input: String, case: Case = Case.LOWERCASE): String { | ||
| val parts = StringUtils.splitByCharacterTypeCamelCase(input) | ||
| return parts.joinToString(separator = "_") { | ||
| when (case) { | ||
| Case.LOWERCASE -> it.toLowerCase() | ||
| Case.UPPERCASE -> it.toUpperCase() | ||
| } | ||
| } | ||
| } | ||
| } |
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48 changes: 48 additions & 0 deletions
48
...c/test/kotlin/com/netflix/graphql/dgs/codegen/generators/shared/CodeGeneratorUtilsTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| /* | ||
| * | ||
| * Copyright 2020 Netflix, Inc. | ||
| * | ||
| * 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. | ||
| * | ||
| */ | ||
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| package com.netflix.graphql.dgs.codegen.generators.shared | ||
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| import org.assertj.core.api.Assertions.assertThat | ||
| import org.junit.jupiter.params.ParameterizedTest | ||
| import org.junit.jupiter.params.provider.Arguments | ||
| import org.junit.jupiter.params.provider.MethodSource | ||
| import java.util.stream.Stream | ||
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| internal class CodeGeneratorUtilsTest { | ||
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| @ParameterizedTest(name = "{index} => {0}, expected {1}") | ||
| @MethodSource("toSnakeCaseData") | ||
| fun toSnakeCase(input: String, output: String) { | ||
| assertThat(CodeGeneratorUtils.camelCasetoSnakeCase(input)).isEqualTo(output) | ||
| } | ||
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| companion object { | ||
| @JvmStatic | ||
| fun toSnakeCaseData(): Stream<Arguments> = Stream.of( | ||
| "abc" to "abc", | ||
| "ABC" to "abc", | ||
| "Abc" to "abc", | ||
| "1AB" to "1_ab", | ||
| "1Abc" to "1_abc", | ||
| "ABCefg" to "ab_cefg", | ||
| "A1BCefg" to "a_1_b_cefg", | ||
| "AbCeFg" to "ab_ce_fg", | ||
| ).map { Arguments.of(it.first, it.second) } | ||
| } | ||
| } |