/
JavaWriterVisitorTest.java
2976 lines (2689 loc) · 114 KB
/
JavaWriterVisitorTest.java
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// Copyright 2020 Google LLC
//
// 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.google.api.generator.engine.writer;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThrows;
import com.google.api.generator.engine.ast.AnnotationNode;
import com.google.api.generator.engine.ast.AnonymousClassExpr;
import com.google.api.generator.engine.ast.ArithmeticOperationExpr;
import com.google.api.generator.engine.ast.ArrayExpr;
import com.google.api.generator.engine.ast.AssignmentExpr;
import com.google.api.generator.engine.ast.AssignmentOperationExpr;
import com.google.api.generator.engine.ast.BlockComment;
import com.google.api.generator.engine.ast.BlockStatement;
import com.google.api.generator.engine.ast.BreakStatement;
import com.google.api.generator.engine.ast.CastExpr;
import com.google.api.generator.engine.ast.ClassDefinition;
import com.google.api.generator.engine.ast.CommentStatement;
import com.google.api.generator.engine.ast.ConcreteReference;
import com.google.api.generator.engine.ast.EmptyLineStatement;
import com.google.api.generator.engine.ast.EnumRefExpr;
import com.google.api.generator.engine.ast.Expr;
import com.google.api.generator.engine.ast.ExprStatement;
import com.google.api.generator.engine.ast.ForStatement;
import com.google.api.generator.engine.ast.GeneralForStatement;
import com.google.api.generator.engine.ast.IdentifierNode;
import com.google.api.generator.engine.ast.IfStatement;
import com.google.api.generator.engine.ast.InstanceofExpr;
import com.google.api.generator.engine.ast.JavaDocComment;
import com.google.api.generator.engine.ast.LambdaExpr;
import com.google.api.generator.engine.ast.LineComment;
import com.google.api.generator.engine.ast.LogicalOperationExpr;
import com.google.api.generator.engine.ast.MethodDefinition;
import com.google.api.generator.engine.ast.MethodInvocationExpr;
import com.google.api.generator.engine.ast.NewObjectExpr;
import com.google.api.generator.engine.ast.NullObjectValue;
import com.google.api.generator.engine.ast.PackageInfoDefinition;
import com.google.api.generator.engine.ast.PrimitiveValue;
import com.google.api.generator.engine.ast.Reference;
import com.google.api.generator.engine.ast.ReferenceConstructorExpr;
import com.google.api.generator.engine.ast.RelationalOperationExpr;
import com.google.api.generator.engine.ast.ReturnExpr;
import com.google.api.generator.engine.ast.ScopeNode;
import com.google.api.generator.engine.ast.Statement;
import com.google.api.generator.engine.ast.StringObjectValue;
import com.google.api.generator.engine.ast.SuperObjectValue;
import com.google.api.generator.engine.ast.SynchronizedStatement;
import com.google.api.generator.engine.ast.TernaryExpr;
import com.google.api.generator.engine.ast.ThisObjectValue;
import com.google.api.generator.engine.ast.ThrowExpr;
import com.google.api.generator.engine.ast.TryCatchStatement;
import com.google.api.generator.engine.ast.TypeNode;
import com.google.api.generator.engine.ast.UnaryOperationExpr;
import com.google.api.generator.engine.ast.Value;
import com.google.api.generator.engine.ast.ValueExpr;
import com.google.api.generator.engine.ast.VaporReference;
import com.google.api.generator.engine.ast.Variable;
import com.google.api.generator.engine.ast.VariableExpr;
import com.google.api.generator.engine.ast.WhileStatement;
import com.google.api.generator.engine.writer.JavaFormatter.FormatException;
import com.google.api.generator.gapic.composer.grpc.ServiceClientClassComposer;
import com.google.api.generator.gapic.model.GapicClass;
import com.google.api.generator.gapic.model.GapicContext;
import com.google.api.generator.gapic.model.Service;
import com.google.api.generator.test.framework.Assert;
import com.google.api.generator.test.protoloader.TestProtoLoader;
import com.google.api.generator.test.utils.LineFormatter;
import com.google.api.generator.test.utils.TestExprBuilder;
import com.google.common.base.Function;
import com.google.testgapic.v1beta1.Outer;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeoutException;
import javax.annotation.Generated;
import org.junit.Before;
import org.junit.Test;
public class JavaWriterVisitorTest {
private JavaWriterVisitor writerVisitor;
@Before
public void setUp() {
writerVisitor = new JavaWriterVisitor();
}
@Test
public void writeIdentifier() {
String idName = "foobar";
IdentifierNode.builder().setName(idName).build().accept(writerVisitor);
assertEquals(idName, writerVisitor.write());
}
@Test
public void writePrimitiveType() {
TypeNode intType = TypeNode.INT;
assertThat(intType).isNotNull();
intType.accept(writerVisitor);
assertEquals("int", writerVisitor.write());
}
@Test
public void writePrimitiveArrayType() {
TypeNode byteArrayType =
TypeNode.builder().setTypeKind(TypeNode.TypeKind.BYTE).setIsArray(true).build();
assertThat(byteArrayType).isNotNull();
byteArrayType.accept(writerVisitor);
assertEquals("byte[]", writerVisitor.write());
}
@Test
public void writeReferenceType_basic() {
TypeNode.withReference(ConcreteReference.withClazz(List.class)).accept(writerVisitor);
assertEquals("List", writerVisitor.write());
writerVisitor.clear();
TypeNode.withReference(
VaporReference.builder().setName("FooBar").setPakkage("com.foo.bar").build())
.accept(writerVisitor);
assertEquals("FooBar", writerVisitor.write());
}
@Test
public void writeVaporReferenceType_nestedClasses() {
VaporReference nestedVaporReference =
VaporReference.builder()
.setName("Inner")
.setEnclosingClassNames(Arrays.asList("Outer", "Middle"))
.setPakkage("com.google.testgapic.v1beta1")
.build();
TypeNode.withReference(nestedVaporReference).accept(writerVisitor);
assertEquals("Outer.Middle.Inner", writerVisitor.write());
}
@Test
public void writeConcreteReferenceType_nestedClasses() {
ConcreteReference nestedConcreteReference =
ConcreteReference.withClazz(Outer.Middle.Inner.class);
TypeNode.withReference(nestedConcreteReference).accept(writerVisitor);
assertEquals("Outer.Middle.Inner", writerVisitor.write());
}
@Test
public void writeReferenceType_useFullName() {
TypeNode.withReference(
ConcreteReference.builder().setClazz(List.class).setUseFullName(true).build())
.accept(writerVisitor);
assertEquals("java.util.List", writerVisitor.write());
writerVisitor.clear();
TypeNode.withReference(
VaporReference.builder()
.setName("FooBar")
.setPakkage("com.foo.bar")
.setUseFullName(true)
.build())
.accept(writerVisitor);
assertEquals("com.foo.bar.FooBar", writerVisitor.write());
}
@Test
public void writeAnnotation_simple() {
AnnotationNode annotation = AnnotationNode.OVERRIDE;
annotation.accept(writerVisitor);
assertEquals("@Override\n", writerVisitor.write());
}
@Test
public void writeAnnotation_withStringDescription() {
AnnotationNode annotation = AnnotationNode.withSuppressWarnings("all");
annotation.accept(writerVisitor);
assertEquals("@SuppressWarnings(\"all\")\n", writerVisitor.write());
}
@Test
public void writeAnnotation_withValueDescription() {
TypeNode fakeAnnotationType =
TypeNode.withReference(
VaporReference.builder().setName("FakeAnnotation").setPakkage("com.foo.bar").build());
AnnotationNode annotation =
AnnotationNode.builder()
.setType(fakeAnnotationType)
.setDescription(
ValueExpr.withValue(
PrimitiveValue.builder().setValue("12").setType(TypeNode.INT).build()))
.build();
annotation.accept(writerVisitor);
assertEquals("@FakeAnnotation(12)\n", writerVisitor.write());
}
@Test
public void writeAnnotation_withVariableExprDescription() {
TypeNode conditionalOnPropertyType =
TypeNode.withReference(
VaporReference.builder()
.setName("ConditionalOnClass")
.setPakkage("org.springframework.boot.autoconfigure.condition")
.build());
TypeNode clazzType =
TypeNode.withReference(
VaporReference.builder()
.setName("VisionServiceClient")
.setPakkage("com.foo.bar")
.build());
AnnotationNode annotation =
AnnotationNode.builder()
.setType(conditionalOnPropertyType)
.setDescription(
VariableExpr.builder()
.setVariable(
Variable.builder().setType(TypeNode.CLASS_OBJECT).setName("class").build())
.setStaticReferenceType(clazzType)
.build())
.build();
annotation.accept(writerVisitor);
assertEquals("@ConditionalOnClass(VisionServiceClient.class)\n", writerVisitor.write());
}
@Test
public void writeAnnotation_withMultipleNamedDescriptions() {
TypeNode conditionalOnPropertyType =
TypeNode.withReference(
VaporReference.builder()
.setName("ConditionalOnProperty")
.setPakkage("org.springframework.boot.autoconfigure.condition")
.build());
AssignmentExpr matchIfMissing =
AssignmentExpr.builder()
.setVariableExpr(
VariableExpr.withVariable(
Variable.builder().setName("matchIfMissing").setType(TypeNode.BOOLEAN).build()))
.setValueExpr(
ValueExpr.withValue(
PrimitiveValue.builder().setValue("false").setType(TypeNode.BOOLEAN).build()))
.build();
AssignmentExpr valueString =
AssignmentExpr.builder()
.setVariableExpr(
VariableExpr.withVariable(
Variable.builder().setName("value").setType(TypeNode.STRING).build()))
.setValueExpr(
ValueExpr.withValue(
StringObjectValue.withValue("spring.cloud.gcp.language.enabled")))
.build();
AnnotationNode annotation =
AnnotationNode.builder()
.setType(conditionalOnPropertyType)
.addDescription(valueString)
.addDescription(matchIfMissing)
.build();
annotation.accept(writerVisitor);
assertEquals(
"@ConditionalOnProperty(value = \"spring.cloud.gcp.language.enabled\", matchIfMissing = false)\n",
writerVisitor.write());
}
@Test
public void writeAnnotation_withInvalidDescriptions() {
TypeNode fakeAnnotationType =
TypeNode.withReference(
VaporReference.builder().setName("FakeAnnotation").setPakkage("com.foo.bar").build());
String stringA = "a string";
String stringB = "another string";
ValueExpr valueExpr =
ValueExpr.withValue(PrimitiveValue.builder().setValue("12").setType(TypeNode.INT).build());
VariableExpr clazzVariableExpr =
VariableExpr.builder()
.setVariable(Variable.builder().setType(TypeNode.CLASS_OBJECT).setName("class").build())
.setExprReferenceExpr(
MethodInvocationExpr.builder()
.setMethodName("foobar")
.setReturnType(TypeNode.INT_OBJECT)
.build())
.build();
AssignmentExpr valueStringAssignmentExpr =
AssignmentExpr.builder()
.setVariableExpr(
VariableExpr.withVariable(
Variable.builder().setName("value").setType(TypeNode.STRING).build()))
.setValueExpr(
ValueExpr.withValue(
StringObjectValue.withValue("spring.cloud.gcp.language.enabled")))
.build();
AnnotationNode.Builder annotationBuilder =
AnnotationNode.builder().setType(fakeAnnotationType).setDescription(stringA);
IllegalStateException exceptionForSetDescription =
assertThrows(
IllegalStateException.class,
() -> {
annotationBuilder.setDescription(valueExpr);
});
assertThat(exceptionForSetDescription)
.hasMessageThat()
.contains("Single parameter with no name cannot be set multiple times");
assertThrows(
IllegalStateException.class,
() -> {
annotationBuilder.setDescription(stringB);
});
assertThrows(
IllegalStateException.class,
() -> {
annotationBuilder.setDescription(clazzVariableExpr);
});
IllegalStateException exceptionForAddDescription =
assertThrows(
IllegalStateException.class,
() -> {
annotationBuilder.addDescription(valueStringAssignmentExpr);
});
assertThat(exceptionForAddDescription)
.hasMessageThat()
.contains("Multiple parameters must have names");
}
@Test
public void writeAnnotation_withArrayExpr() {
TypeNode fakeAnnotationType =
TypeNode.withReference(
VaporReference.builder().setName("FakeAnnotation").setPakkage("com.foo.bar").build());
AnnotationNode annotation =
AnnotationNode.builder()
.setType(fakeAnnotationType)
.setDescription(
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.CLASS_OBJECT))
.addExpr(TestExprBuilder.generateClassValueExpr("Class1"))
.addExpr(TestExprBuilder.generateClassValueExpr("Class2"))
.build())
.build();
annotation.accept(writerVisitor);
assertEquals("@FakeAnnotation({Class1.class, Class2.class})\n", writerVisitor.write());
}
@Test
public void writeAnnotation_withArrayExprAssignment() {
TypeNode fakeAnnotationType =
TypeNode.withReference(
VaporReference.builder().setName("FakeAnnotation").setPakkage("com.foo.bar").build());
ArrayExpr arrayExpr =
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.CLASS_OBJECT))
.addExpr(TestExprBuilder.generateClassValueExpr("Class1"))
.addExpr(TestExprBuilder.generateClassValueExpr("Class2"))
.build();
AssignmentExpr clazz1AssignExpr =
AssignmentExpr.builder()
.setVariableExpr(
VariableExpr.builder()
.setVariable(
Variable.builder()
.setName("value1")
.setType(TypeNode.createArrayTypeOf(TypeNode.CLASS_OBJECT))
.build())
.build())
.setValueExpr(arrayExpr)
.build();
AssignmentExpr clazz2AssignExpr =
AssignmentExpr.builder()
.setVariableExpr(
VariableExpr.withVariable(
Variable.builder()
.setName("value2")
.setType(TypeNode.createArrayTypeOf(TypeNode.CLASS_OBJECT))
.build()))
.setValueExpr(arrayExpr)
.build();
AnnotationNode annotation =
AnnotationNode.builder()
.setType(fakeAnnotationType)
.addDescription(clazz1AssignExpr)
.addDescription(clazz2AssignExpr)
.build();
annotation.accept(writerVisitor);
assertEquals(
"@FakeAnnotation(value1 = {Class1.class, Class2.class}, "
+ "value2 = {Class1.class, Class2.class})\n",
writerVisitor.write());
}
@Test
public void writeArrayExpr_add1StringExpr() {
ArrayExpr expr =
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.STRING))
.addExpr(ValueExpr.builder().setValue(StringObjectValue.withValue("test1")).build())
.build();
expr.accept(writerVisitor);
assertEquals("{\"test1\"}", writerVisitor.write());
}
@Test
public void writeArrayExpr_addManyStrExpr() {
ArrayExpr expr =
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.STRING))
.addExpr(TestExprBuilder.generateStringValueExpr("test1"))
.addExpr(TestExprBuilder.generateStringValueExpr("test2"))
.addExpr(TestExprBuilder.generateStringValueExpr("test3"))
.build();
expr.accept(writerVisitor);
assertEquals("{\"test1\", \"test2\", \"test3\"}", writerVisitor.write());
}
@Test
public void writeArrayExpr_addManyClassExpr() {
ArrayExpr expr =
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.CLASS_OBJECT))
.addExpr(TestExprBuilder.generateClassValueExpr("Class1"))
.addExpr(TestExprBuilder.generateClassValueExpr("Class2"))
.addExpr(TestExprBuilder.generateClassValueExpr("Class3"))
.build();
expr.accept(writerVisitor);
assertEquals("{Class1.class, Class2.class, Class3.class}", writerVisitor.write());
}
@Test
public void writeArrayExpr_mixedVariablesStaticAndNormalReference() {
VariableExpr clazzVar =
VariableExpr.builder()
.setVariable(
Variable.builder().setName("clazz1Var").setType(TypeNode.CLASS_OBJECT).build())
.build();
ArrayExpr expr =
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.CLASS_OBJECT))
.addExpr(clazzVar)
.addExpr(TestExprBuilder.generateClassValueExpr("Class2"))
.build();
expr.accept(writerVisitor);
assertEquals("{clazz1Var, Class2.class}", writerVisitor.write());
}
@Test
public void writeArrayExpr_assignemntWithDeclaration() {
VariableExpr varExpr =
VariableExpr.builder()
.setVariable(
Variable.builder()
.setName("varExpr")
.setType(TypeNode.createArrayTypeOf(TypeNode.STRING))
.build())
.setIsDecl(true)
.build();
ArrayExpr expr =
ArrayExpr.builder()
.setType(TypeNode.createArrayTypeOf(TypeNode.STRING))
.addExpr(TestExprBuilder.generateStringValueExpr("str1"))
.addExpr(TestExprBuilder.generateStringValueExpr("str2"))
.build();
AssignmentExpr assignmentExpr =
AssignmentExpr.builder().setVariableExpr(varExpr).setValueExpr(expr).build();
assignmentExpr.accept(writerVisitor);
assertEquals("String[] varExpr = {\"str1\", \"str2\"}", writerVisitor.write());
}
@Test
public void writeNewObjectExpr_basic() {
// isGeneric() is true, but generics() is empty.
ConcreteReference ref = ConcreteReference.withClazz(List.class);
TypeNode type = TypeNode.withReference(ref);
NewObjectExpr newObjectExpr = NewObjectExpr.builder().setIsGeneric(true).setType(type).build();
newObjectExpr.accept(writerVisitor);
assertEquals("new List<>()", writerVisitor.write());
}
@Test
public void writeNewObjectExpr_withMethodExprArgs() {
// isGeneric() is false, and generics() is empty.
// [Constructing] `new IOException(message, cause())` and `cause()` is a method invocation.
TypeNode type = TypeNode.withReference(ConcreteReference.withClazz(IOException.class));
Variable message = Variable.builder().setName("message").setType(TypeNode.STRING).build();
VariableExpr msgExpr = VariableExpr.builder().setVariable(message).build();
MethodInvocationExpr causeExpr =
MethodInvocationExpr.builder()
.setMethodName("cause")
.setReturnType(TypeNode.withReference(ConcreteReference.withClazz(Throwable.class)))
.build();
NewObjectExpr newObjectExpr =
NewObjectExpr.builder()
.setType(type)
.setArguments(Arrays.asList(msgExpr, causeExpr))
.build();
newObjectExpr.accept(writerVisitor);
assertEquals("new IOException(message, cause())", writerVisitor.write());
}
@Test
public void writeNewObjectExpr_withGenericsAndArgs() {
// isGeneric() is true and generics() is not empty.
ConcreteReference listRef =
ConcreteReference.builder()
.setClazz(List.class)
.setGenerics(Arrays.asList(ConcreteReference.withClazz(Integer.class)))
.build();
ConcreteReference mapRef =
ConcreteReference.builder()
.setClazz(HashMap.class)
.setGenerics(Arrays.asList(ConcreteReference.withClazz(String.class), listRef))
.build();
TypeNode type = TypeNode.withReference(mapRef);
TypeNode someType =
TypeNode.withReference(
VaporReference.builder()
.setName("SomeClass")
.setPakkage("com.google.api.generator.engine")
.build());
MethodInvocationExpr methodExpr =
MethodInvocationExpr.builder()
.setMethodName("foobar")
.setReturnType(TypeNode.INT)
.setStaticReferenceType(someType)
.build();
Variable num = Variable.builder().setName("num").setType(TypeNode.FLOAT).build();
VariableExpr numExpr = VariableExpr.builder().setVariable(num).build();
NewObjectExpr newObjectExpr =
NewObjectExpr.builder()
.setIsGeneric(true)
.setType(type)
.setArguments(Arrays.asList(methodExpr, numExpr))
.build();
newObjectExpr.accept(writerVisitor);
assertEquals(
"new HashMap<String, List<Integer>>(SomeClass.foobar(), num)", writerVisitor.write());
}
/** =============================== EXPRESSIONS =============================== */
@Test
public void writeValueExpr() {
Value value = PrimitiveValue.builder().setType(TypeNode.INT).setValue("3").build();
ValueExpr valueExpr = ValueExpr.builder().setValue(value).build();
valueExpr.accept(writerVisitor);
assertEquals("3", writerVisitor.write());
}
@Test
public void writeVariableExpr_basic() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.INT).build();
VariableExpr variableExpr = VariableExpr.builder().setVariable(variable).build();
variableExpr.accept(writerVisitor);
assertEquals("x", writerVisitor.write());
}
@Test
public void writeVariableExpr_wildcardType() {
TypeNode wildcardListType =
TypeNode.withReference(
ConcreteReference.builder()
.setClazz(List.class)
.setGenerics(Arrays.asList(TypeNode.WILDCARD_REFERENCE))
.build());
Variable variable = Variable.builder().setName("x").setType(wildcardListType).build();
VariableExpr variableExpr =
VariableExpr.builder().setIsDecl(true).setVariable(variable).build();
variableExpr.accept(writerVisitor);
assertEquals("List<?> x", writerVisitor.write());
}
@Test
public void writeVariableExpr_wildcardTypeWithUpperBound() {
TypeNode wildcardListType =
TypeNode.withReference(
ConcreteReference.builder()
.setClazz(List.class)
.setGenerics(
Arrays.asList(
ConcreteReference.wildcardWithUpperBound(
ConcreteReference.withClazz(Expr.class))))
.build());
Variable variable = Variable.builder().setName("x").setType(wildcardListType).build();
VariableExpr variableExpr =
VariableExpr.builder().setIsDecl(true).setVariable(variable).build();
variableExpr.accept(writerVisitor);
assertEquals("List<? extends Expr> x", writerVisitor.write());
}
@Test
public void writeVariableExpr_staticReference() {
VariableExpr variableExpr =
VariableExpr.builder()
.setVariable(
Variable.builder().setType(TypeNode.INT_OBJECT).setName("MAX_VALUE").build())
.setStaticReferenceType(TypeNode.INT_OBJECT)
.build();
variableExpr.accept(writerVisitor);
assertEquals("Integer.MAX_VALUE", writerVisitor.write());
}
@Test
public void writeVariableExpr_nonDeclIgnoresModifiers() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.BOOLEAN).build();
VariableExpr expr =
VariableExpr.builder()
.setVariable(variable)
.setScope(ScopeNode.PUBLIC)
.setIsStatic(true)
.setIsFinal(true)
.build();
expr.accept(writerVisitor);
assertEquals("x", writerVisitor.write());
}
@Test
public void writeVariableExpr_basicLocalDecl() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.INT).build();
VariableExpr expr = VariableExpr.builder().setVariable(variable).setIsDecl(true).build();
expr.accept(writerVisitor);
assertEquals("int x", writerVisitor.write());
}
@Test
public void writeVariableExpr_localFinalDecl() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.BOOLEAN).build();
VariableExpr expr =
VariableExpr.builder().setVariable(variable).setIsFinal(true).setIsDecl(true).build();
expr.accept(writerVisitor);
assertEquals("final boolean x", writerVisitor.write());
}
@Test
public void writeVariableExpr_scopedDecl() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.INT).build();
VariableExpr expr =
VariableExpr.builder()
.setVariable(variable)
.setScope(ScopeNode.PRIVATE)
.setIsDecl(true)
.build();
expr.accept(writerVisitor);
assertEquals("private int x", writerVisitor.write());
}
@Test
public void writeVariableExpr_scopedStaticFinalDecl() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.BOOLEAN).build();
VariableExpr expr =
VariableExpr.builder()
.setVariable(variable)
.setIsDecl(true)
.setScope(ScopeNode.PUBLIC)
.setIsStatic(true)
.setIsFinal(true)
.build();
expr.accept(writerVisitor);
assertEquals("public static final boolean x", writerVisitor.write());
}
@Test
public void writeVariableExpr_scopedStaticFinalVolatileDecl() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.BOOLEAN).build();
VariableExpr expr =
VariableExpr.builder()
.setVariable(variable)
.setIsDecl(true)
.setScope(ScopeNode.PRIVATE)
.setIsStatic(true)
.setIsFinal(true)
.setIsVolatile(true)
.build();
expr.accept(writerVisitor);
assertEquals("private static final volatile boolean x", writerVisitor.write());
}
@Test
public void writeVariableExpr_basicReference() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.STRING_ARRAY).build();
VariableExpr variableExpr = VariableExpr.builder().setVariable(variable).build();
Variable subVariable = Variable.builder().setName("length").setType(TypeNode.INT).build();
variableExpr =
VariableExpr.builder().setVariable(subVariable).setExprReferenceExpr(variableExpr).build();
variableExpr.accept(writerVisitor);
assertEquals("x.length", writerVisitor.write());
}
@Test
public void writeVariableExpr_basicReferenceWithModifiersSet() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.STRING_ARRAY).build();
VariableExpr variableExpr = VariableExpr.builder().setVariable(variable).build();
Variable subVariable = Variable.builder().setName("length").setType(TypeNode.INT).build();
variableExpr =
VariableExpr.builder()
.setVariable(subVariable)
.setExprReferenceExpr(variableExpr)
.setScope(ScopeNode.PUBLIC)
.setIsFinal(true)
.setIsStatic(true)
.build();
variableExpr.accept(writerVisitor);
assertEquals("x.length", writerVisitor.write());
}
@Test
public void writeVariableExpr_nestedReference() {
Variable variable = Variable.builder().setName("x").setType(TypeNode.STRING_ARRAY).build();
VariableExpr variableExpr = VariableExpr.builder().setVariable(variable).build();
Variable subVariable =
Variable.builder().setName("someStringField").setType(TypeNode.STRING).build();
variableExpr =
VariableExpr.builder().setVariable(subVariable).setExprReferenceExpr(variableExpr).build();
subVariable = Variable.builder().setName("anotherStringField").setType(TypeNode.STRING).build();
variableExpr =
VariableExpr.builder().setVariable(subVariable).setExprReferenceExpr(variableExpr).build();
subVariable = Variable.builder().setName("lengthField").setType(TypeNode.INT).build();
variableExpr =
VariableExpr.builder().setVariable(subVariable).setExprReferenceExpr(variableExpr).build();
variableExpr.accept(writerVisitor);
assertEquals("x.someStringField.anotherStringField.lengthField", writerVisitor.write());
}
@Test
public void writeArithmeticOperationExpr_concatStringWithMethod() {
ValueExpr lhsExpr = ValueExpr.withValue(StringObjectValue.withValue("someWord"));
MethodInvocationExpr methodInvocationExpr =
MethodInvocationExpr.builder().setMethodName("getMethod").build();
MethodInvocationExpr rhsExpr =
MethodInvocationExpr.builder()
.setExprReferenceExpr(methodInvocationExpr)
.setMethodName("getString")
.setReturnType(TypeNode.STRING)
.build();
ArithmeticOperationExpr arithmeticOperationExpr =
ArithmeticOperationExpr.concatWithExprs(lhsExpr, rhsExpr);
arithmeticOperationExpr.accept(writerVisitor);
assertThat(writerVisitor.write()).isEqualTo("\"someWord\" + getMethod().getString()");
}
@Test
public void writeArithmeticOperationExpr_concatStringWithNumber() {
ValueExpr rhsExpr =
ValueExpr.withValue(PrimitiveValue.builder().setType(TypeNode.INT).setValue("5").build());
ValueExpr lhsExpr = ValueExpr.withValue(StringObjectValue.withValue("someWord"));
ArithmeticOperationExpr arithmeticOperationExpr =
ArithmeticOperationExpr.concatWithExprs(lhsExpr, rhsExpr);
arithmeticOperationExpr.accept(writerVisitor);
assertThat(writerVisitor.write()).isEqualTo("\"someWord\" + 5");
}
/** =============================== COMMENT =============================== */
@Test
public void writeBlockCommentStatement_basic() {
String content = "this is a test comment";
BlockComment blockComment = BlockComment.builder().setComment(content).build();
CommentStatement commentStatement = CommentStatement.withComment(blockComment);
String expected = LineFormatter.lines("/*\n", "* this is a test comment\n", "*/\n");
commentStatement.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeLineCommentStatement_basic() {
String content = "this is a test comment";
LineComment lineComment = LineComment.builder().setComment(content).build();
CommentStatement commentStatement = CommentStatement.withComment(lineComment);
String expected = "// this is a test comment\n";
commentStatement.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeJavaDocCommentStatement_allComponents() {
String content = "this is a test comment";
String deprecatedText = "Use the {@link ArchivedBookName} class instead.";
String paramName = "shelfName";
String paramDescription = "The name of the shelf where books are published to.";
String paragraph1 =
"This class provides the ability to make remote calls to the backing service through"
+ " method calls that map to API methods. Sample code to get started:";
String paragraph2 =
"The surface of this class includes several types of Java methods for each of the API's"
+ " methods:";
String sampleCode = createSampleCode();
List<String> orderedlList =
Arrays.asList("A flattened method.", " A request object method.", "A callable method.");
String throwsType = "com.google.api.gax.rpc.ApiException";
String throwsDescription = "if the remote call fails.";
JavaDocComment javaDocComment =
JavaDocComment.builder()
.addComment(content)
.addParagraph(paragraph1)
.addSampleCode(sampleCode)
.addParagraph(paragraph2)
.addOrderedList(orderedlList)
.addSampleCode(sampleCode)
.addParam(paramName, paramDescription)
.setThrows(throwsType, throwsDescription)
.setDeprecated(deprecatedText)
.build();
CommentStatement commentStatement = CommentStatement.withComment(javaDocComment);
String expected =
LineFormatter.lines(
"/**\n",
"* this is a test comment\n",
"* <p> This class provides the ability to make remote calls to the backing service"
+ " through method calls that map to API methods. Sample code to get started:\n",
"* <pre>{@code\n",
"* try (boolean condition = false) {\n",
"* int x = 3;\n",
"* }\n",
"* }</pre>\n",
"* <p> The surface of this class includes several types of Java methods for each of"
+ " the API's methods:\n",
"* <ol>\n",
"* <li> A flattened method.\n",
"* <li> A request object method.\n",
"* <li> A callable method.\n",
"* </ol>\n",
"* <pre>{@code\n",
"* try (boolean condition = false) {\n",
"* int x = 3;\n",
"* }\n",
"* }</pre>\n",
"* @param shelfName The name of the shelf where books are published to.\n",
"* @throws com.google.api.gax.rpc.ApiException if the remote call fails.\n",
"* @deprecated Use the {@link ArchivedBookName} class instead.\n",
"*/\n");
commentStatement.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeBlockComment_shortLines() {
String content = "Apache License \nThis is a test file header";
BlockComment blockComment = BlockComment.builder().setComment(content).build();
String expected =
LineFormatter.lines("/*\n", "* Apache License\n", "* This is a test file header\n", "*/\n");
blockComment.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeBlockComment_newLineInBetween() {
String content =
"Apache License \n"
+ "Licensed under the Apache License, Version 2.0 (the \"License\");\n\n"
+ "you may not use this file except in compliance with the License.";
BlockComment blockComment = BlockComment.builder().setComment(content).build();
String expected =
LineFormatter.lines(
"/*\n",
"* Apache License\n",
"* Licensed under the Apache License, Version 2.0 (the \"License\");\n",
"*\n",
"* you may not use this file except in compliance with the License.\n",
"*/\n");
blockComment.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeLineComment_longLine() {
String content =
"this is a long test comment with so many words, hello world, hello again, hello for 3"
+ " times, blah, blah!";
LineComment lineComment = LineComment.builder().setComment(content).build();
String expected =
LineFormatter.lines(
"// this is a long test comment with so many words, hello world, hello again, hello"
+ " for 3 times,\n",
"// blah, blah!\n");
lineComment.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeLineComment_specialChar() {
String content =
"usage: gradle run -PmainClass=com.google.example.examples.library.v1.Hopper"
+ " [--args='[--shelf \"Novel\\\"`\b\t\n\r"
+ "\"]']";
LineComment lineComment = LineComment.withComment(content);
String expected =
LineFormatter.lines(
"// usage: gradle run -PmainClass=com.google.example.examples.library.v1.Hopper"
+ " [--args='[--shelf\n",
"// \"Novel\\\\\"`\\b\\t\n",
"// \\r",
"\"]']\n");
lineComment.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeJavaDocComment_specialChar() {
// Only comments and sample codes in JavaDocComment need this escaper.
// <p> <ol> <li> <ul> are hard-coded in monolith generator, which do not need escaping.
JavaDocComment javaDocComment =
JavaDocComment.builder()
.addComment(
"The API has a collection of [Shelf][google.example.library.v1.Shelf] resources")
.addComment("named `bookShelves/*`")
.addSampleCode(
"ApiFuture<Shelf> future ="
+ " libraryClient.createShelfCallable().futureCall(request);")
.addOrderedList(
Arrays.asList(
"A \"flattened\" method.",
"A \"request object\" method.",
"A \"callable\" method."))
.addComment("RPC method comment may include special characters: <>&\"`'@.")
.build();
String expected =
LineFormatter.lines(
"/**\n",
"* The API has a collection of [Shelf][google.example.library.v1.Shelf] resources\n",
"* named `bookShelves/*`\n",
"* <pre>{@code\n",
"* ApiFuture<Shelf> future ="
+ " libraryClient.createShelfCallable().futureCall(request);\n",
"* }</pre>\n",
"* <ol>\n",
"* <li> A \"flattened\" method.\n",
"* <li> A \"request object\" method.\n",
"* <li> A \"callable\" method.\n",
"* </ol>\n",
"* RPC method comment may include special characters: <>&\"`'{@literal @}.\n",
"*/\n");
javaDocComment.accept(writerVisitor);
assertEquals(expected, writerVisitor.write());
}
@Test
public void writeFailingComment_specialChar() {
JavaDocComment javaDocComment =
JavaDocComment.builder()
.addUnescapedComment(
"This resource reference needs to be CommentFormatted or it will fail: `bookShelves/*/`")
.build();
FormatException exceptionForIncorrectlyFormattedComment =
assertThrows(
FormatException.class,
() -> {
javaDocComment.accept(writerVisitor);
});
assertThat(exceptionForIncorrectlyFormattedComment)
.hasMessageThat()
.contains("The input resource can not be parsed");
}
@Test
public void writeTernaryExpr_basic() {
Variable conditionVariable =
Variable.builder().setName("condition").setType(TypeNode.BOOLEAN).build();
VariableExpr conditionExpr = VariableExpr.builder().setVariable(conditionVariable).build();
Value value1 = PrimitiveValue.builder().setType(TypeNode.INT).setValue("3").build();
Expr thenExpr = ValueExpr.builder().setValue(value1).build();
Value value2 = PrimitiveValue.builder().setType(TypeNode.INT).setValue("4").build();
Expr elseExpr = ValueExpr.builder().setValue(value2).build();
TernaryExpr ternaryExpr =
TernaryExpr.builder()
.setConditionExpr(conditionExpr)
.setThenExpr(thenExpr)
.setElseExpr(elseExpr)
.build();
ternaryExpr.accept(writerVisitor);