1 //===- unittest/Format/FormatTestJava.cpp - Formatting tests for Java -----===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "FormatTestUtils.h" 11 #include "clang/Format/Format.h" 12 #include "llvm/Support/Debug.h" 13 #include "gtest/gtest.h" 14 15 #define DEBUG_TYPE "format-test" 16 17 namespace clang { 18 namespace format { 19 20 class FormatTestJava : public ::testing::Test { 21 protected: 22 static std::string format(llvm::StringRef Code, unsigned Offset, 23 unsigned Length, const FormatStyle &Style) { 24 DEBUG(llvm::errs() << "---\n"); 25 DEBUG(llvm::errs() << Code << "\n\n"); 26 std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length)); 27 tooling::Replacements Replaces = reformat(Style, Code, Ranges); 28 std::string Result = applyAllReplacements(Code, Replaces); 29 EXPECT_NE("", Result); 30 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 31 return Result; 32 } 33 34 static std::string format( 35 llvm::StringRef Code, 36 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_Java)) { 37 return format(Code, 0, Code.size(), Style); 38 } 39 40 static FormatStyle getStyleWithColumns(unsigned ColumnLimit) { 41 FormatStyle Style = getGoogleStyle(FormatStyle::LK_Java); 42 Style.ColumnLimit = ColumnLimit; 43 return Style; 44 } 45 46 static void verifyFormat( 47 llvm::StringRef Code, 48 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_Java)) { 49 EXPECT_EQ(Code.str(), format(test::messUp(Code), Style)); 50 } 51 }; 52 53 TEST_F(FormatTestJava, ClassDeclarations) { 54 verifyFormat("public class SomeClass {\n" 55 " private int a;\n" 56 " private int b;\n" 57 "}"); 58 verifyFormat("public class A {\n" 59 " class B {\n" 60 " int i;\n" 61 " }\n" 62 " class C {\n" 63 " int j;\n" 64 " }\n" 65 "}"); 66 verifyFormat("public class A extends B.C {}"); 67 68 verifyFormat("abstract class SomeClass extends SomeOtherClass\n" 69 " implements SomeInterface {}", 70 getStyleWithColumns(60)); 71 verifyFormat("abstract class SomeClass\n" 72 " extends SomeOtherClass\n" 73 " implements SomeInterface {}", 74 getStyleWithColumns(40)); 75 verifyFormat("abstract class SomeClass\n" 76 " extends SomeOtherClass\n" 77 " implements SomeInterface,\n" 78 " AnotherInterface {}", 79 getStyleWithColumns(40)); 80 verifyFormat("@SomeAnnotation()\n" 81 "abstract class aaaaaaaaaaaa extends bbbbbbbbbbbbbbb\n" 82 " implements cccccccccccc {\n" 83 "}", 84 getStyleWithColumns(76)); 85 } 86 87 TEST_F(FormatTestJava, EnumDeclarations) { 88 verifyFormat("enum SomeThing { ABC, CDE }"); 89 verifyFormat("enum SomeThing {\n" 90 " ABC,\n" 91 " CDE,\n" 92 "}"); 93 verifyFormat("public class SomeClass {\n" 94 " enum SomeThing { ABC, CDE }\n" 95 " void f() {\n" 96 " }\n" 97 "}"); 98 } 99 100 TEST_F(FormatTestJava, ThrowsDeclarations) { 101 verifyFormat("public void doSooooooooooooooooooooooooooomething()\n" 102 " throws LooooooooooooooooooooooooooooongException {\n}"); 103 } 104 105 TEST_F(FormatTestJava, Annotations) { 106 verifyFormat("@Override\n" 107 "public String toString() {\n}"); 108 verifyFormat("@Override\n" 109 "@Nullable\n" 110 "public String getNameIfPresent() {\n}"); 111 112 verifyFormat("@SuppressWarnings(value = \"unchecked\")\n" 113 "public void doSomething() {\n}"); 114 verifyFormat("@SuppressWarnings(value = \"unchecked\")\n" 115 "@Author(name = \"abc\")\n" 116 "public void doSomething() {\n}"); 117 118 verifyFormat("DoSomething(new A() {\n" 119 " @Override\n" 120 " public String toString() {\n" 121 " }\n" 122 "});"); 123 124 verifyFormat("void SomeFunction(@Nullable String something) {\n" 125 "}"); 126 127 verifyFormat("@Partial @Mock DataLoader loader;"); 128 verifyFormat("@SuppressWarnings(value = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")\n" 129 "public static int iiiiiiiiiiiiiiiiiiiiiiii;"); 130 131 verifyFormat("@SomeAnnotation(\"With some really looooooooooooooong text\")\n" 132 "private static final long something = 0L;"); 133 } 134 135 TEST_F(FormatTestJava, Generics) { 136 verifyFormat("Iterable<?> a;"); 137 verifyFormat("Iterable<?> a;"); 138 verifyFormat("Iterable<? extends SomeObject> a;"); 139 140 verifyFormat("A.<B>doSomething();"); 141 142 verifyFormat("@Override\n" 143 "public Map<String, ?> getAll() {\n}"); 144 145 verifyFormat("public static <R> ArrayList<R> get() {\n}"); 146 verifyFormat("<T extends B> T getInstance(Class<T> type);"); 147 } 148 149 TEST_F(FormatTestJava, StringConcatenation) { 150 verifyFormat("String someString = \"abc\"\n" 151 " + \"cde\";"); 152 } 153 154 TEST_F(FormatTestJava, TryCatchFinally) { 155 verifyFormat("try {\n" 156 " Something();\n" 157 "} catch (SomeException e) {\n" 158 " HandleException(e);\n" 159 "}"); 160 verifyFormat("try {\n" 161 " Something();\n" 162 "} finally {\n" 163 " AlwaysDoThis();\n" 164 "}"); 165 verifyFormat("try {\n" 166 " Something();\n" 167 "} catch (SomeException e) {\n" 168 " HandleException(e);\n" 169 "} finally {\n" 170 " AlwaysDoThis();\n" 171 "}"); 172 173 verifyFormat("try {\n" 174 " Something();\n" 175 "} catch (SomeException | OtherException e) {\n" 176 " HandleException(e);\n" 177 "}"); 178 } 179 180 TEST_F(FormatTestJava, SynchronizedKeyword) { 181 verifyFormat("synchronized (mData) {\n" 182 " // ...\n" 183 "}"); 184 } 185 186 TEST_F(FormatTestJava, ImportDeclarations) { 187 verifyFormat("import some.really.loooooooooooooooooooooong.imported.Class;", 188 getStyleWithColumns(50)); 189 } 190 191 } // end namespace tooling 192 } // end namespace clang 193