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presto-main/src/test/java/com/facebook/presto/operator/scalar/AbstractTestFunctions.java
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| /* | ||
| * 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.facebook.presto.operator.scalar; | ||
|
|
||
| import com.facebook.presto.metadata.FunctionListBuilder; | ||
| import com.facebook.presto.metadata.Metadata; | ||
| import com.facebook.presto.metadata.ParametricFunction; | ||
| import com.facebook.presto.spi.ErrorCodeSupplier; | ||
| import com.facebook.presto.spi.PrestoException; | ||
| import com.facebook.presto.spi.type.Type; | ||
|
|
||
| import java.util.List; | ||
|
|
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| import static com.facebook.presto.spi.StandardErrorCode.INVALID_CAST_ARGUMENT; | ||
| import static com.facebook.presto.spi.StandardErrorCode.INVALID_FUNCTION_ARGUMENT; | ||
| import static com.facebook.presto.type.UnknownType.UNKNOWN; | ||
| import static java.lang.String.format; | ||
| import static org.testng.Assert.assertEquals; | ||
| import static org.testng.Assert.fail; | ||
|
|
||
| public abstract class AbstractTestFunctions | ||
| { | ||
| protected final FunctionAssertions functionAssertions = new FunctionAssertions(); | ||
|
|
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| protected void assertFunction(String projection, Type expectedType, Object expected) | ||
| { | ||
| functionAssertions.assertFunction(projection, expectedType, expected); | ||
| } | ||
|
|
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| protected void assertInvalidFunction(String projection, Type expectedType, String message) | ||
| { | ||
| try { | ||
| assertFunction(projection, expectedType, null); | ||
| fail("Expected to throw an INVALID_FUNCTION_ARGUMENT exception with message " + message); | ||
| } | ||
| catch (PrestoException e) { | ||
| assertEquals(e.getErrorCode(), INVALID_FUNCTION_ARGUMENT.toErrorCode()); | ||
| assertEquals(e.getMessage(), message); | ||
| } | ||
| } | ||
|
|
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| protected void assertInvalidFunction(String projection, Type expectedType, ErrorCodeSupplier expectedErrorCode) | ||
| { | ||
| try { | ||
| assertFunction(projection, expectedType, null); | ||
| fail(format("Expected to throw %s exception", expectedErrorCode.toErrorCode())); | ||
| } | ||
| catch (PrestoException e) { | ||
| assertEquals(e.getErrorCode(), expectedErrorCode.toErrorCode()); | ||
| } | ||
| } | ||
|
|
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| protected void assertInvalidCast(String projection) | ||
| { | ||
| try { | ||
| // type isn't necessary as the function is not valid | ||
| functionAssertions.assertFunction(projection, UNKNOWN, null); | ||
| fail("Expected to throw an INVALID_CAST_ARGUMENT exception"); | ||
| } | ||
| catch (PrestoException e) { | ||
| assertEquals(e.getErrorCode(), INVALID_CAST_ARGUMENT.toErrorCode()); | ||
| } | ||
| } | ||
|
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| protected void registerScalar(Class<?> clazz) | ||
| { | ||
| Metadata metadata = functionAssertions.getMetadata(); | ||
| List<ParametricFunction> functions = new FunctionListBuilder(metadata.getTypeManager()) | ||
| .scalar(clazz) | ||
| .getFunctions(); | ||
| metadata.getFunctionRegistry().addFunctions(functions); | ||
| } | ||
| } |
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