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extract functional: suggest incompatible SAM by throws list

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when there is no applicable interfaces (IDEA-174045)
This commit is contained in:
Anna Kozlova
2017-06-09 12:16:45 +03:00
parent 23cc5b9cdb
commit e3aecbce9b
3 changed files with 34 additions and 9 deletions
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20
java/java-tests/testSrc/com/intellij/java/refactoring/FunctionalInterfaceSuggesterTest.java
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@@ -17,12 +17,14 @@ package com.intellij.java.refactoring;
import com.intellij.codeInsight.FunctionalInterfaceSuggester;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiMethod;
import com.intellij.psi.PsiType;
import com.intellij.testFramework.LightProjectDescriptor;
import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase;
import org.jetbrains.annotations.NotNull;
import org.junit.Assert;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;
@@ -39,8 +41,18 @@ public class FunctionalInterfaceSuggesterTest extends LightCodeInsightFixtureTes
.stream()
.map(type -> type.getCanonicalText())
.collect(Collectors.toList());
Assert.assertEquals(4, suggestedTypes.size());
Assert.assertTrue(suggestedTypes.containsAll(Arrays.asList("java.util.function.ToDoubleFunction<java.lang.Double>",
"java.util.function.DoubleUnaryOperator")));
assertEquals(4, suggestedTypes.size());
assertTrue(suggestedTypes.containsAll(Arrays.asList("java.util.function.ToDoubleFunction<java.lang.Double>",
"java.util.function.DoubleUnaryOperator")));
}
public void testSAMWithThrowable() throws Exception {
myFixture.addClass("@FunctionalInterface\n" +
"public interface MyThrowingConsumer<T> {\n" +
" void accept(T t) throws Throwable;\n" +
"}\n");
PsiMethod method = myFixture.addClass("class Foo { void foo(int i) {}}").getMethods()[0];
Collection<? extends PsiType> suggestedTypes = FunctionalInterfaceSuggester.suggestFunctionalInterfaces(method, true);
assertTrue(suggestedTypes.stream().anyMatch(type -> type.equalsToText("MyThrowingConsumer<Integer>")));
}
}