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// Copyright (C) 2009 The Android Open Source Project
//
// 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.gimd.modification
import file.{FileType, File}
import org.junit.Test
import org.junit.Assert._
import query._
import UserType._
final class ModificationTestCase {
val nestedMember = new NestedMember("node", TreeNodeType)
case class TreeNode(id: Int, name: String)
object TreeNodeType extends UserType[TreeNode] {
val id = FieldSpecOne("id", IntField, _.id)
val name = FieldSpecOne("name", StringField, _.name)
def fields = id :: name
override def children = Seq(nestedMember)
def toUserObject(m: Message) = new TreeNode(id(m), name(m))
}
object MockFileType extends FileType[TreeNode] {
val pathPrefix = None
val pathSuffix = None
val userType = TreeNodeType
def name(m: Message) = userType.id(m).toString
}
case class MockFile(message: Message) extends File[TreeNode] {
val path = ""
val fileType = MockFileType
val userObject = fileType.userType.toUserObject(message)
}
val root = new TreeNode(-1, "a")
val child_0 = new TreeNode(0, "a")
val child_1 = new TreeNode(1, "b")
val child_2 = new TreeNode(2, "a")
val child_msg0 = TreeNodeType.toMessage(child_0)
val child_msg1 = TreeNodeType.toMessage(child_1)
val child_msg2 = TreeNodeType.toMessage(child_2)
val message = TreeNodeType.toMessageBuffer(root).
add("node", child_msg0).
add("node", child_msg1).
add("node", child_msg2).readOnly
@Test
def insertUnderEmptyPath {
val file = MockFile(message)
val handle = CompleteHandle(file, PathHandle.empty)
val child_3 = TreeNode(3, "a")
val child_msg3 = TreeNodeType.toMessage(child_3)
val modification = DatabaseModification.empty.insert(handle, nestedMember, child_3)
val (modFiles, _) = modification.reduce
val newTopMessage = modFiles(file).get
val expectedTopMessage = TreeNodeType.toMessageBuffer(root).
add("node", child_msg0).
add("node", child_msg1).
add("node", child_msg2).
add("node", child_msg3).readOnly
assertEquals(expectedTopMessage, newTopMessage)
}
@Test
def insertNewFile {
val modification = DatabaseModification.empty.insertFile(MockFileType, root)
val (_, newFiles) = modification.reduce
val root_msg = TreeNodeType.toMessage(root)
assertEquals(List((MockFileType, root_msg)), newFiles)
}
@Test
def insertUnderNonEmptyPath {
val file = MockFile(message)
val handle = CompleteHandle(file, path(child_msg1))
val child_3 = TreeNode(3, "a")
val child_msg3 = TreeNodeType.toMessage(child_3)
val modification = DatabaseModification.empty.insert(handle, nestedMember, child_3)
val (modFiles, _) = modification.reduce
val newTopMessage = modFiles(file).get
val expectedTopMessage = TreeNodeType.toMessageBuffer(root).
add("node", child_msg0).
add("node", child_msg1 + MessageField("node", child_msg3)).
add("node", child_msg2).readOnly
assertEquals(expectedTopMessage, newTopMessage)
}
@Test
def removeLeaf {
val file = MockFile(message)
val handle = CompleteHandle(file, path(child_msg1))
val modification = DatabaseModification.empty.remove(handle)
val (modFiles, _) = modification.reduce
val newTopMessage = modFiles(file).get
val expectedTopMessage = TreeNodeType.toMessageBuffer(root).
add("node", child_msg0).
add("node", child_msg2).readOnly
assertEquals(expectedTopMessage, newTopMessage)
}
@Test
def removeTop {
val file = MockFile(message)
val handle = CompleteHandle(file, PathHandle.empty)
val modification = DatabaseModification.empty.remove(handle)
assertEquals(None, modification.reduce._1(file))
}
@Test
def editTop {
val file = MockFile(message)
val handle = CompleteHandle[TreeNode](file, PathHandle.empty)
val newRoot = TreeNode(-1, "c")
val modification = DatabaseModification.empty.modify(handle, newRoot)
val (modFiles, _) = modification.reduce
val newTopMessage = modFiles(file).get
val expectedTopMessage = TreeNodeType.toMessageBuffer(newRoot).
add("node", child_msg0).
add("node", child_msg1).
add("node", child_msg2).readOnly
assertEquals(expectedTopMessage, newTopMessage)
}
@Test
def editChildAndInsertUnderneath {
val file = MockFile(message)
val handle = CompleteHandle[TreeNode](file, path(child_msg1))
val newChild_1 = TreeNode(1, "c")
val newChild_msg1 = TreeNodeType.toMessage(newChild_1)
val child_3 = TreeNode(3, "a")
val child_msg3 = TreeNodeType.toMessage(child_3)
val modification = DatabaseModification.empty.
modify(handle, newChild_1).
insert(handle, nestedMember, child_3)
val (modFiles, _) = modification.reduce
val newTopMessage = modFiles(file).get
val expectedTopMessage = TreeNodeType.toMessageBuffer(root).
add("node", child_msg0).
add("node", newChild_msg1 + MessageField("node", child_msg3)).
add("node", child_msg2).readOnly
assertEquals(expectedTopMessage, newTopMessage)
}
@Test
def insertUnderneathChildAndEdit {
val file = MockFile(message)
val handle = CompleteHandle[TreeNode](file, path(child_msg1))
val newChild_1 = TreeNode(1, "c")
val newChild_msg1 = TreeNodeType.toMessage(newChild_1)
val child_3 = TreeNode(3, "a")
val child_msg3 = TreeNodeType.toMessage(child_3)
val modification = DatabaseModification.empty.
insert(handle, nestedMember, child_3).
modify(handle, newChild_1)
val (modFiles, _) = modification.reduce
val newTopMessage = modFiles(file).get
val expectedTopMessage = TreeNodeType.toMessageBuffer(root).
add("node", child_msg0).
add("node", newChild_msg1 + MessageField("node", child_msg3)).
add("node", child_msg2).readOnly
assertEquals(expectedTopMessage, newTopMessage)
}
@Test{val expected = classOf[ConflictingModificationException]}
def removeTopAndInsertUnderneath {
val file = MockFile(message)
val handle = CompleteHandle(file, PathHandle.empty)
val child_3 = TreeNode(3, "a")
DatabaseModification.empty.remove(handle).insert(handle, nestedMember, child_3)
}
@Test{val expected = classOf[ConflictingModificationException]}
def editTopTwoTimes {
val file = MockFile(message)
val handle = CompleteHandle[TreeNode](file, PathHandle.empty)
DatabaseModification.empty.modify(handle, root).modify(handle, root)
}
@Test{val expected = classOf[IllegalArgumentException]}
def editWrongType {
val file = MockFile(message)
val handle = CompleteHandle[Unit](file, PathHandle.empty)
DatabaseModification.empty.modify(handle, ())
}
@Test{val expected = classOf[IllegalArgumentException]}
def passWrongNestedMember {
val file = MockFile(message)
val handle = CompleteHandle[TreeNode](file, PathHandle.empty)
val child_3 = TreeNode(3, "a")
DatabaseModification.empty.insert(handle, new NestedMember("wrong", TreeNodeType), child_3)
}
private def path(msgs: Message*) =
PathHandle(List.make(msgs.size, TreeNodeType) zip msgs.map(MessageField("node", _)).toList)
}
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