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 { ABC, CDE };"); 90 verifyFormat("enum SomeThing {\n" 91 " ABC,\n" 92 " CDE,\n" 93 "}"); 94 verifyFormat("public class SomeClass {\n" 95 " enum SomeThing { ABC, CDE }\n" 96 " void f() {\n" 97 " }\n" 98 "}"); 99 } 100 101 TEST_F(FormatTestJava, ThrowsDeclarations) { 102 verifyFormat("public void doSooooooooooooooooooooooooooomething()\n" 103 " throws LooooooooooooooooooooooooooooongException {\n}"); 104 } 105 106 TEST_F(FormatTestJava, Annotations) { 107 verifyFormat("@Override\n" 108 "public String toString() {\n}"); 109 verifyFormat("@Override\n" 110 "@Nullable\n" 111 "public String getNameIfPresent() {\n}"); 112 113 verifyFormat("@SuppressWarnings(value = \"unchecked\")\n" 114 "public void doSomething() {\n}"); 115 verifyFormat("@SuppressWarnings(value = \"unchecked\")\n" 116 "@Author(name = \"abc\")\n" 117 "public void doSomething() {\n}"); 118 119 verifyFormat("DoSomething(new A() {\n" 120 " @Override\n" 121 " public String toString() {\n" 122 " }\n" 123 "});"); 124 125 verifyFormat("void SomeFunction(@Nullable String something) {\n" 126 "}"); 127 128 verifyFormat("@Partial @Mock DataLoader loader;"); 129 verifyFormat("@SuppressWarnings(value = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")\n" 130 "public static int iiiiiiiiiiiiiiiiiiiiiiii;"); 131 132 verifyFormat("@SomeAnnotation(\"With some really looooooooooooooong text\")\n" 133 "private static final long something = 0L;"); 134 } 135 136 TEST_F(FormatTestJava, Generics) { 137 verifyFormat("Iterable<?> a;"); 138 verifyFormat("Iterable<?> a;"); 139 verifyFormat("Iterable<? extends SomeObject> a;"); 140 141 verifyFormat("A.<B>doSomething();"); 142 143 verifyFormat("@Override\n" 144 "public Map<String, ?> getAll() {\n}"); 145 146 verifyFormat("public static <R> ArrayList<R> get() {\n}"); 147 verifyFormat("<T extends B> T getInstance(Class<T> type);"); 148 } 149 150 TEST_F(FormatTestJava, StringConcatenation) { 151 verifyFormat("String someString = \"abc\"\n" 152 " + \"cde\";"); 153 } 154 155 TEST_F(FormatTestJava, TryCatchFinally) { 156 verifyFormat("try {\n" 157 " Something();\n" 158 "} catch (SomeException e) {\n" 159 " HandleException(e);\n" 160 "}"); 161 verifyFormat("try {\n" 162 " Something();\n" 163 "} finally {\n" 164 " AlwaysDoThis();\n" 165 "}"); 166 verifyFormat("try {\n" 167 " Something();\n" 168 "} catch (SomeException e) {\n" 169 " HandleException(e);\n" 170 "} finally {\n" 171 " AlwaysDoThis();\n" 172 "}"); 173 174 verifyFormat("try {\n" 175 " Something();\n" 176 "} catch (SomeException | OtherException e) {\n" 177 " HandleException(e);\n" 178 "}"); 179 } 180 181 TEST_F(FormatTestJava, SynchronizedKeyword) { 182 verifyFormat("synchronized (mData) {\n" 183 " // ...\n" 184 "}"); 185 } 186 187 TEST_F(FormatTestJava, ImportDeclarations) { 188 verifyFormat("import some.really.loooooooooooooooooooooong.imported.Class;", 189 getStyleWithColumns(50)); 190 } 191 192 } // end namespace tooling 193 } // end namespace clang 194