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package bolt
import (
"testing"
"unsafe"
"github.com/stretchr/testify/assert"
)
// Ensure that a temporary page can insert a key/value.
func TestTpagePut(t *testing.T) {
p := &tpage{nodes: make(tnodes, 0)}
p.put([]byte("baz"), []byte("2"))
p.put([]byte("foo"), []byte("0"))
p.put([]byte("bar"), []byte("1"))
p.put([]byte("foo"), []byte("3"))
assert.Equal(t, len(p.nodes), 3)
assert.Equal(t, p.nodes[0], tnode{[]byte("bar"), []byte("1")})
assert.Equal(t, p.nodes[1], tnode{[]byte("baz"), []byte("2")})
assert.Equal(t, p.nodes[2], tnode{[]byte("foo"), []byte("3")})
}
// Ensure that a temporary page can deserialize from a page.
func TestTpageRead(t *testing.T) {
// Create a page.
var buf [4096]byte
page := (*page)(unsafe.Pointer(&buf[0]))
page.count = 2
// Insert 2 leaf nodes at the beginning. sizeof(lnode) == 16
nodes := (*[3]lnode)(unsafe.Pointer(&page.ptr))
nodes[0] = lnode{flags: 0, pos: 32, ksize: 3, vsize: 4} // pos = sizeof(lnode) * 2
nodes[1] = lnode{flags: 0, pos: 23, ksize: 10, vsize: 3} // pos = sizeof(lnode) + 3 + 4
// Write data for the nodes at the end.
data := (*[4096]byte)(unsafe.Pointer(&nodes[2]))
copy(data[:], []byte("barfooz"))
copy(data[7:], []byte("helloworldbye"))
// Deserialize page into a temporary page.
p := &tpage{}
p.read(page)
// Check that there are two nodes with correct data.
assert.Equal(t, len(p.nodes), 2)
assert.Equal(t, p.nodes[0].key, []byte("bar"))
assert.Equal(t, p.nodes[0].value, []byte("fooz"))
assert.Equal(t, p.nodes[1].key, []byte("helloworld"))
assert.Equal(t, p.nodes[1].value, []byte("bye"))
}
// Ensure that a temporary page can serialize itself.
func TestTpageWrite(t *testing.T) {
t.Skip("pending")
}
// Ensure that a temporary page can split into appropriate subgroups.
func TestTpageSplit(t *testing.T) {
t.Skip("pending")
}
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