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Improve Url equality #533

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35 changes: 24 additions & 11 deletions readium/shared/src/main/java/org/readium/r2/shared/util/Url.kt
Original file line number Diff line number Diff line change
Expand Up @@ -176,17 +176,6 @@ public sealed class Url : Parcelable {
override fun toString(): String =
uri.toString()

override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false

other as Url

if (uri.toString() != other.uri.toString()) return false

return true
}

override fun hashCode(): Int =
uri.toString().hashCode()

Expand Down Expand Up @@ -270,6 +259,19 @@ public class AbsoluteUrl private constructor(override val uri: Uri) : Url() {
*/
public fun toFile(): File? =
if (isFile) File(path!!) else null

override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false

other as AbsoluteUrl

return scheme == other.scheme &&
uri.authority == other.uri.authority &&
path == other.path &&
query == other.query &&
fragment == other.fragment
}
}

/**
Expand All @@ -294,6 +296,17 @@ public class RelativeUrl private constructor(override val uri: Uri) : Url() {
RelativeUrl(uri)
}
}

override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false

other as RelativeUrl

return path == other.path &&
query == other.query &&
fragment == other.fragment
}
}

/**
Expand Down
97 changes: 97 additions & 0 deletions readium/shared/src/test/java/org/readium/r2/shared/util/UrlTest.kt
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ import java.io.File
import java.net.URI
import java.net.URL
import kotlin.test.assertIs
import kotlin.test.assertNotEquals
import kotlin.test.assertNotNull
import org.junit.Assert.assertEquals
import org.junit.Assert.assertNull
Expand Down Expand Up @@ -399,4 +400,100 @@ class UrlTest {
assertEquals(params.allNamed("empty"), emptyList<String>())
assertEquals(params.allNamed("not-found"), emptyList<String>())
}

@Test
fun equality() {
assertNotEquals(
AbsoluteUrl("http://example.com/foo/bar")!! as Url,
RelativeUrl("foo/bar") as Url
)

// Paths must be equal.
assertEquals(
AbsoluteUrl("http://example.com/foo/bar")!!,
AbsoluteUrl("http://example.com/foo/bar")
)
assertEquals(RelativeUrl("foo/bar")!!, RelativeUrl("foo/bar"))
assertNotEquals(
AbsoluteUrl("http://example.com/foo/bar")!!,
AbsoluteUrl("http://example.com/foo/baz")
)
assertNotEquals(RelativeUrl("foo/bar")!!, RelativeUrl("foo/baz"))

// Paths is compared percent and entity-decoded.
assertEquals(
AbsoluteUrl("http://example.com/c%27est%20valide")!!,
AbsoluteUrl("http://example.com/c%27est%20valide")
)
assertEquals(
AbsoluteUrl("http://example.com/c%27est%20valide")!!,
AbsoluteUrl("http://example.com/c'est%20valide")
)
assertEquals(RelativeUrl("c%27est%20valide")!!, RelativeUrl("c%27est%20valide"))
assertEquals(RelativeUrl("c%27est%20valide")!!, RelativeUrl("c'est%20valide"))

// Authority must be equal.
assertEquals(AbsoluteUrl("http://example.com/foo")!!, AbsoluteUrl("http://example.com/foo"))
assertNotEquals(
AbsoluteUrl("http://example.com/foo")!!,
AbsoluteUrl("http://example.com:80/foo")
)
assertNotEquals(
AbsoluteUrl("http://example.com:443/foo")!!,
AbsoluteUrl("http://example.com:80/foo")
)
assertNotEquals(
AbsoluteUrl("http://example.com/foo")!!,
AbsoluteUrl("http://example.com:80/foo")
)
assertNotEquals(
AbsoluteUrl("http://example.com/foo")!!,
AbsoluteUrl("http://domain.com/foo")
)
assertNotEquals(
AbsoluteUrl("http://example.com/foo")!!,
AbsoluteUrl("http://user:[email protected]/foo")
)
assertNotEquals(
AbsoluteUrl("http://other:[email protected]/foo")!!,
AbsoluteUrl("http://user:[email protected]/foo")
)

// Order of query parameters is important.
assertNotEquals(
AbsoluteUrl("http://example.com/foo/bar?a=a&b=b")!!,
AbsoluteUrl("http://example.com/foo/bar?b=b&a=a")
)
assertNotEquals(RelativeUrl("foo/bar?a=a&b=b")!!, RelativeUrl("foo/bar?b=b&a=a"))

// Content of parameters is important.
assertEquals(
AbsoluteUrl("http://example.com/foo/bar?a=a&b=b")!!,
AbsoluteUrl("http://example.com/foo/bar?a=a&b=b")
)
assertNotEquals(
AbsoluteUrl("http://example.com/foo/bar?a=a")!!,
AbsoluteUrl("http://example.com/foo/bar?b=b")
)
assertNotEquals(RelativeUrl("foo/bar?a=a")!!, RelativeUrl("foo/bar?b=b"))

// Scheme is case insensitive.
assertEquals(AbsoluteUrl("http://example.com/foo")!!, AbsoluteUrl("HTTP://example.com/foo"))
assertNotEquals(
AbsoluteUrl("http://example.com/foo")!!,
AbsoluteUrl("https://example.com/foo")
)

// Fragment is relevant.
assertEquals(
AbsoluteUrl("http://example.com/foo#fragment")!!,
AbsoluteUrl("http://example.com/foo#fragment")
)
assertEquals(RelativeUrl("foo/bar#fragment")!!, RelativeUrl("foo/bar#fragment"))
assertNotEquals(
AbsoluteUrl("http://example.com/foo#fragment")!!,
AbsoluteUrl("http://example.com/foo#other")
)
assertNotEquals(RelativeUrl("foo/bar#fragment")!!, RelativeUrl("foo/bar#other"))
}
}
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