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/*
* Copyright (C) 2018 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 android.databinding.tool.reflection
import org.hamcrest.CoreMatchers.`is`
import org.hamcrest.CoreMatchers.nullValue
import org.hamcrest.MatcherAssert.assertThat
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.mockito.Mockito
@RunWith(JUnit4::class)
class ClassFinderCacheTest {
private val loggingFinder = LoggingFinder()
@Test
fun simple_fail() {
val cache = ClassFinderCache(loggingFinder::doFind)
val result = cache.find("foo", null)
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", null)
)
))
assertThat(result, nullValue())
}
@Test
fun simple_succeed() {
val cache = ClassFinderCache(loggingFinder::doFind)
val fake = loggingFinder.addClassFor("foo")
val result = cache.find("foo", null)
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", null)
)
))
assertThat(result, `is`(fake))
cache.find("foo", null)
// should return from cache
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", null)
)
))
}
@Test
fun import_different() {
val cache = ClassFinderCache(loggingFinder::doFind)
val fake = loggingFinder.addClassFor("foo")
val result = cache.find("foo", null)
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", null)
)
))
assertThat(result, `is`(fake))
val result2 = cache.find("foo", ImportBag.EMPTY)
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", null),
DoFindCall("foo", ImportBag.EMPTY.toImmutable())
)
))
assertThat(result2, `is`(fake))
}
@Test
fun import_mutated() {
val cache = ClassFinderCache(loggingFinder::doFind)
val fake = loggingFinder.addClassFor("foo")
val imports = MutableImportBag().also {
it.put("baz", "foo.baz")
}
val imports1 = imports.toImmutable()
val result = cache.find("foo", imports)
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", imports1)
)
))
assertThat(result, `is`(fake))
imports.put("bazar", "foo.bazar")
val imports2 = imports.toImmutable()
val result2 = cache.find("foo", imports2)
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", imports1),
DoFindCall("foo", imports2)
)
))
assertThat(result2, `is`(fake))
val result3 = cache.find("foo", MutableImportBag().also {
it.put("baz", "foo.baz")
})
// should come from cache
assertThat(loggingFinder.calls, `is`(
listOf(
DoFindCall("foo", imports1),
DoFindCall("foo", imports2)
)
))
assertThat(result3, `is`(fake))
}
class LoggingFinder {
val calls = arrayListOf<DoFindCall>()
private val classes = mutableMapOf<String, ModelClass>()
fun doFind(className: String, imports: ImportBag?): ModelClass? {
calls.add(DoFindCall(
className = className,
imports = imports?.toImmutable()
))
return classes[className]
}
fun addClassFor(className: String): ModelClass {
val mock = Mockito.mock(ModelClass::class.java)
classes[className] = mock
return mock
}
}
data class DoFindCall(val className: String, val imports: ImmutableImportBag?)
}
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