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 verifyFormat("@SomeAnnotation()\n" 86 "abstract class aaaaaaaaa<a> extends bbbbbbbbbbbb<b>\n" 87 " implements cccccccccccc {\n" 88 "}", 89 getStyleWithColumns(76)); 90 verifyFormat("interface SomeInterface<A> extends Foo, Bar {\n" 91 " void doStuff(int theStuff);\n" 92 " void doMoreStuff(int moreStuff);\n" 93 "}"); 94 verifyFormat("public interface SomeInterface {\n" 95 " void doStuff(int theStuff);\n" 96 " void doMoreStuff(int moreStuff);\n" 97 "}"); 98 verifyFormat("@interface SomeInterface {\n" 99 " void doStuff(int theStuff);\n" 100 " void doMoreStuff(int moreStuff);\n" 101 "}"); 102 verifyFormat("public @interface SomeInterface {\n" 103 " void doStuff(int theStuff);\n" 104 " void doMoreStuff(int moreStuff);\n" 105 "}"); 106 } 107 108 TEST_F(FormatTestJava, EnumDeclarations) { 109 verifyFormat("enum SomeThing { ABC, CDE }"); 110 verifyFormat("enum SomeThing {\n" 111 " ABC,\n" 112 " CDE,\n" 113 "}"); 114 verifyFormat("public class SomeClass {\n" 115 " enum SomeThing { ABC, CDE }\n" 116 " void f() {\n" 117 " }\n" 118 "}"); 119 } 120 121 TEST_F(FormatTestJava, ThrowsDeclarations) { 122 verifyFormat("public void doSooooooooooooooooooooooooooomething()\n" 123 " throws LooooooooooooooooooooooooooooongException {\n}"); 124 } 125 126 TEST_F(FormatTestJava, Annotations) { 127 verifyFormat("@Override\n" 128 "public String toString() {\n}"); 129 verifyFormat("@Override\n" 130 "@Nullable\n" 131 "public String getNameIfPresent() {\n}"); 132 133 verifyFormat("@SuppressWarnings(value = \"unchecked\")\n" 134 "public void doSomething() {\n}"); 135 verifyFormat("@SuppressWarnings(value = \"unchecked\")\n" 136 "@Author(name = \"abc\")\n" 137 "public void doSomething() {\n}"); 138 139 verifyFormat("DoSomething(new A() {\n" 140 " @Override\n" 141 " public String toString() {\n" 142 " }\n" 143 "});"); 144 145 verifyFormat("void SomeFunction(@Nullable String something) {\n" 146 "}"); 147 148 verifyFormat("@Partial @Mock DataLoader loader;"); 149 verifyFormat("@SuppressWarnings(value = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")\n" 150 "public static int iiiiiiiiiiiiiiiiiiiiiiii;"); 151 152 verifyFormat("@SomeAnnotation(\"With some really looooooooooooooong text\")\n" 153 "private static final long something = 0L;"); 154 } 155 156 TEST_F(FormatTestJava, Generics) { 157 verifyFormat("Iterable<?> a;"); 158 verifyFormat("Iterable<?> a;"); 159 verifyFormat("Iterable<? extends SomeObject> a;"); 160 161 verifyFormat("A.<B>doSomething();"); 162 163 verifyFormat("@Override\n" 164 "public Map<String, ?> getAll() {\n}"); 165 166 verifyFormat("public static <R> ArrayList<R> get() {\n}"); 167 verifyFormat("<T extends B> T getInstance(Class<T> type);"); 168 } 169 170 TEST_F(FormatTestJava, StringConcatenation) { 171 verifyFormat("String someString = \"abc\"\n" 172 " + \"cde\";"); 173 } 174 175 TEST_F(FormatTestJava, TryCatchFinally) { 176 verifyFormat("try {\n" 177 " Something();\n" 178 "} catch (SomeException e) {\n" 179 " HandleException(e);\n" 180 "}"); 181 verifyFormat("try {\n" 182 " Something();\n" 183 "} finally {\n" 184 " AlwaysDoThis();\n" 185 "}"); 186 verifyFormat("try {\n" 187 " Something();\n" 188 "} catch (SomeException e) {\n" 189 " HandleException(e);\n" 190 "} finally {\n" 191 " AlwaysDoThis();\n" 192 "}"); 193 194 verifyFormat("try {\n" 195 " Something();\n" 196 "} catch (SomeException | OtherException e) {\n" 197 " HandleException(e);\n" 198 "}"); 199 } 200 201 TEST_F(FormatTestJava, SynchronizedKeyword) { 202 verifyFormat("synchronized (mData) {\n" 203 " // ...\n" 204 "}"); 205 } 206 207 TEST_F(FormatTestJava, ImportDeclarations) { 208 verifyFormat("import some.really.loooooooooooooooooooooong.imported.Class;", 209 getStyleWithColumns(50)); 210 } 211 212 } // end namespace tooling 213 } // end namespace clang 214