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package org.the_jk.cleversync.io
import com.google.common.truth.Truth.assertThat
import org.junit.Assume
import org.junit.Before
import org.junit.Test
abstract class BaseVerifierTest {
private lateinit var src: ModifiableTree
private lateinit var tgt: ModifiableTree
private val memory = FakeMemory()
@Before
fun setUp() {
src = source()
tgt = target()
}
@Test
fun empty() {
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
assertThat(memory.isEmpty()).isTrue()
}
@Test
fun contentMatchNoMemory() {
val sourceFoo = src.createFile("foo")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT1) }
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
assertThat(memory.get("/foo")).isEqualTo(HASH1)
}
@Test
fun contentMatchMemory() {
memory.put("/foo", HASH1)
val sourceFoo = src.createFile("foo")
// Intentionally wrong, to show that source is not read when memory hash matches
sourceFoo.write().use { it.write(0) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT1) }
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
}
@Test
fun contentMatchMemoryOldFormat() {
Assume.assumeTrue(Hasher.DEFAULT != Hasher.Format.SHA160)
memory.put("/foo", HASH1_OLD)
val sourceFoo = src.createFile("foo")
// Intentionally wrong, to show that source is not read when memory hash matches
sourceFoo.write().use { it.write(0) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT1) }
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
}
@Test
fun contentMismatchNoMemory() {
val sourceFoo = src.createFile("foo")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
val actions = Verifier.calculate(tgt, src, memory)
assertThat(actions).containsExactly(Action.Copy(name = "foo", overwrite = true))
assertThat(Modifier.apply(tgt, src, actions, memory = memory)).isEmpty()
assertThat(memory.get("/foo")).isEqualTo(HASH1)
assertThat(targetFoo.read().use { it.readBytes() })
.isEqualTo(CONTENT1)
}
@Test
fun contentMismatchMemory() {
memory.put("/foo", HASH1)
val sourceFoo = src.createFile("foo")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
val actions = Verifier.calculate(tgt, src, memory)
assertThat(actions).containsExactly(Action.Copy(name = "foo", overwrite = true))
assertThat(Modifier.apply(tgt, src, actions, memory = memory)).isEmpty()
assertThat(memory.get("/foo")).isEqualTo(HASH1)
assertThat(targetFoo.read().use { it.readBytes() })
.isEqualTo(CONTENT1)
}
@Test
fun contentMismatchMemoryOldFormat() {
memory.put("/foo", HASH1_OLD)
val sourceFoo = src.createFile("foo")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
val actions = Verifier.calculate(tgt, src, memory)
assertThat(actions).containsExactly(Action.Copy(name = "foo", overwrite = true))
assertThat(Modifier.apply(tgt, src, actions, memory = memory)).isEmpty()
assertThat(memory.get("/foo")).isEqualTo(HASH1)
assertThat(targetFoo.read().use { it.readBytes() })
.isEqualTo(CONTENT1)
}
@Test
fun contentMismatchBadMemory() {
memory.put("/foo", "".toByteArray().inputStream().use { Hasher.hash(it)!! })
val sourceFoo = src.createFile("foo")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
val actions = Verifier.calculate(tgt, src, memory)
assertThat(actions).containsExactly(Action.Copy(name = "foo", overwrite = true))
assertThat(Modifier.apply(tgt, src, actions, memory = memory)).isEmpty()
assertThat(memory.get("/foo")).isEqualTo(HASH1)
assertThat(targetFoo.read().use { it.readBytes() })
.isEqualTo(CONTENT1)
}
@Test
fun contentMismatchBadMemory2() {
memory.put("/foo", HASH2)
val sourceFoo = src.createFile("foo")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
// We trust memory, so source will not be read and the difference
// will not be noticed. Remember that this is used together with merge.
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
}
@Test
fun contentMismatchNoSource() {
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
}
@Test
fun contentMismatchMemoryNoSource() {
memory.put("/foo", HASH1)
val targetFoo = tgt.createFile("foo")
targetFoo.write().use { it.write(CONTENT2) }
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
}
@Test
fun dirContentMatchMemory() {
memory.put("/foo/bar", HASH1)
val sourceFoo = src.createDirectory("foo").createFile("bar")
// Intentionally wrong, to show that source is not read when memory hash matches
sourceFoo.write().use { it.write(0) }
val targetFoo = tgt.createDirectory("foo").createFile("bar")
targetFoo.write().use { it.write(CONTENT1) }
assertThat(Verifier.calculate(tgt, src, memory)).isEmpty()
}
@Test
fun dirContentMismatchNoMemory() {
val sourceFoo = src.createDirectory("foo").createFile("bar")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createDirectory("foo").createFile("bar")
targetFoo.write().use { it.write(CONTENT2) }
val actions = Verifier.calculate(tgt, src, memory)
assertThat(actions).containsExactly(
Action.ChangeDir(
name = "foo",
actions = listOf(Action.Copy(name = "bar", overwrite = true)),
),
)
assertThat(Modifier.apply(tgt, src, actions, memory = memory)).isEmpty()
assertThat(memory.get("/foo/bar")).isEqualTo(HASH1)
assertThat(targetFoo.read().use { it.readBytes() })
.isEqualTo(CONTENT1)
}
@Test
fun dirContentMismatchMemory() {
memory.put("/foo/bar", HASH1)
val sourceFoo = src.createDirectory("foo").createFile("bar")
sourceFoo.write().use { it.write(CONTENT1) }
val targetFoo = tgt.createDirectory("foo").createFile("bar")
targetFoo.write().use { it.write(CONTENT2) }
val actions = Verifier.calculate(tgt, src, memory)
assertThat(actions).containsExactly(
Action.ChangeDir(
name = "foo",
actions = listOf(Action.Copy(name = "bar", overwrite = true)),
),
)
assertThat(Modifier.apply(tgt, src, actions, memory = memory)).isEmpty()
assertThat(memory.get("/foo/bar")).isEqualTo(HASH1)
assertThat(targetFoo.read().use { it.readBytes() })
.isEqualTo(CONTENT1)
}
abstract fun source(): ModifiableTree
abstract fun target(): ModifiableTree
private class FakeMemory : Verifier.Memory {
private val data = mutableMapOf<String, String>()
override fun get(path: String) = data[path]
override fun put(path: String, hash: String) {
data[path] = hash
}
fun isEmpty() = data.isEmpty()
}
private companion object {
val CONTENT1 = "Hello world".toByteArray()
val HASH1 = CONTENT1.inputStream().use { Hasher.hash(it)!! }
val HASH1_OLD = CONTENT1.inputStream().use { Hasher.hash(it, Hasher.Format.SHA160)!! }
val CONTENT2 = "Goodbye world".toByteArray()
val HASH2 = CONTENT2.inputStream().use { Hasher.hash(it)!! }
}
}
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