distribution/registry/storage/driver/azure/blockid_test.go

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package azure
import (
"math"
"testing"
azure "github.com/Azure/azure-sdk-for-go/storage"
)
func Test_blockIdGenerator(t *testing.T) {
r := newBlockIDGenerator()
for i := 1; i <= 10; i++ {
if expected := i - 1; len(r.pool) != expected {
t.Fatalf("rand pool had wrong number of items: %d, expected:%d", len(r.pool), expected)
}
if id := r.Generate(); id == "" {
t.Fatal("returned empty id")
}
if expected := i; len(r.pool) != expected {
t.Fatalf("rand pool has wrong number of items: %d, expected:%d", len(r.pool), expected)
}
}
}
func Test_blockIdGenerator_Feed(t *testing.T) {
r := newBlockIDGenerator()
if expected := 0; len(r.pool) != expected {
t.Fatalf("rand pool had wrong number of items: %d, expected:%d", len(r.pool), expected)
}
// feed empty list
blocks := azure.BlockListResponse{}
r.Feed(blocks)
if expected := 0; len(r.pool) != expected {
t.Fatalf("rand pool had wrong number of items: %d, expected:%d", len(r.pool), expected)
}
// feed blocks
blocks = azure.BlockListResponse{
CommittedBlocks: []azure.BlockResponse{
{"1", 1},
{"2", 2},
},
UncommittedBlocks: []azure.BlockResponse{
{"3", 3},
}}
r.Feed(blocks)
if expected := 3; len(r.pool) != expected {
t.Fatalf("rand pool had wrong number of items: %d, expected:%d", len(r.pool), expected)
}
// feed same block IDs with committed/uncommitted place changed
blocks = azure.BlockListResponse{
CommittedBlocks: []azure.BlockResponse{
{"3", 3},
},
UncommittedBlocks: []azure.BlockResponse{
{"1", 1},
}}
r.Feed(blocks)
if expected := 3; len(r.pool) != expected {
t.Fatalf("rand pool had wrong number of items: %d, expected:%d", len(r.pool), expected)
}
}
func Test_toBlockId(t *testing.T) {
min := 0
max := math.MaxInt64
if len(toBlockID(min)) != len(toBlockID(max)) {
t.Fatalf("different-sized blockIDs are returned")
}
}