storj/storage/testsuite/test_iterate.go
paul cannon 0c025fa937 storage/: remove reverse-key-listing feature
We don't use reverse listing in any of our code, outside of tests, and
it is only exposed through libuplink in the
lib/uplink.(*Project).ListBuckets() API. We also don't know of any users
who might have a need for reverse listing through ListBuckets().

Since one of our prospective pointerdb backends can not support
backwards iteration, and because of the above considerations, we are
going to remove the reverse listing feature.

Change-Id: I8d2a1f33d01ee70b79918d584b8c671f57eef2a0
2019-11-12 18:47:51 +00:00

134 lines
3.1 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package testsuite
import (
"context"
"math/rand"
"testing"
"storj.io/storj/storage"
)
var ctx = context.Background() // test context
func testIterate(t *testing.T, store storage.KeyValueStore) {
items := storage.Items{
newItem("a", "a", false),
newItem("b/1", "b/1", false),
newItem("b/2", "b/2", false),
newItem("b/3", "b/3", false),
newItem("c", "c", false),
newItem("c/", "c/", false),
newItem("c//", "c//", false),
newItem("c/1", "c/1", false),
newItem("g", "g", false),
newItem("h", "h", false),
}
rand.Shuffle(len(items), items.Swap)
defer cleanupItems(store, items)
if err := storage.PutAll(ctx, store, items...); err != nil {
t.Fatalf("failed to setup: %v", err)
}
testIterations(t, store, []iterationTest{
{"no limits",
storage.IterateOptions{}, storage.Items{
newItem("a", "a", false),
newItem("b/", "", true),
newItem("c", "c", false),
newItem("c/", "", true),
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"at a",
storage.IterateOptions{
First: storage.Key("a"),
}, storage.Items{
newItem("a", "a", false),
newItem("b/", "", true),
newItem("c", "c", false),
newItem("c/", "", true),
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"after a",
storage.IterateOptions{
First: storage.NextKey(storage.Key("a")),
}, storage.Items{
newItem("b/", "", true),
newItem("c", "c", false),
newItem("c/", "", true),
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"at b",
storage.IterateOptions{
First: storage.Key("b"),
}, storage.Items{
newItem("b/", "", true),
newItem("c", "c", false),
newItem("c/", "", true),
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"after b",
storage.IterateOptions{
First: storage.NextKey(storage.Key("b")),
}, storage.Items{
newItem("b/", "", true),
newItem("c", "c", false),
newItem("c/", "", true),
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"after c",
storage.IterateOptions{
First: storage.NextKey(storage.Key("c")),
}, storage.Items{
newItem("c/", "", true),
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"at e",
storage.IterateOptions{
First: storage.Key("e"),
}, storage.Items{
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"after e",
storage.IterateOptions{
First: storage.NextKey(storage.Key("e")),
}, storage.Items{
newItem("g", "g", false),
newItem("h", "h", false),
}},
{"prefix b slash",
storage.IterateOptions{
Prefix: storage.Key("b/"),
}, storage.Items{
newItem("b/1", "b/1", false),
newItem("b/2", "b/2", false),
newItem("b/3", "b/3", false),
}},
{"prefix c slash",
storage.IterateOptions{
Prefix: storage.Key("c/"),
}, storage.Items{
newItem("c/", "c/", false),
newItem("c//", "", true),
newItem("c/1", "c/1", false),
}},
{"prefix c slash slash",
storage.IterateOptions{
Prefix: storage.Key("c//"),
}, storage.Items{
newItem("c//", "c//", false),
}},
})
}