mirror of https://github.com/hak5/bolt.git
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package bolt
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import (
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"testing"
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"unsafe"
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"github.com/stretchr/testify/assert"
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)
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// Ensure that a buckets page can set a bucket.
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func TestBucketsPut(t *testing.T) {
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b := &buckets{items: make(map[string]*bucket)}
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b.put("foo", &bucket{root: 2})
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b.put("bar", &bucket{root: 3})
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b.put("foo", &bucket{root: 4})
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assert.Equal(t, len(b.items), 2)
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assert.Equal(t, b.get("foo").root, pgid(4))
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assert.Equal(t, b.get("bar").root, pgid(3))
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assert.Nil(t, b.get("no_such_bucket"))
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}
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// Ensure that a buckets page can deserialize from a page.
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func TestBucketsRead(t *testing.T) {
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// Create a page.
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var buf [4096]byte
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page := (*page)(unsafe.Pointer(&buf[0]))
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page.count = 2
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// Insert 2 items at the beginning.
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s := (*[3]bucket)(unsafe.Pointer(&page.ptr))
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s[0] = bucket{root: 3}
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s[1] = bucket{root: 4}
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// Write data for the nodes at the end.
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data := (*[4096]byte)(unsafe.Pointer(&s[2]))
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data[0] = 3
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copy(data[1:], []byte("bar"))
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data[4] = 10
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copy(data[5:], []byte("helloworld"))
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// Deserialize page into a buckets page.
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b := &buckets{items: make(map[string]*bucket)}
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b.read(page)
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// Check that there are two items with correct data.
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assert.Equal(t, len(b.items), 2)
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assert.Equal(t, b.get("bar").root, pgid(3))
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assert.Equal(t, b.get("helloworld").root, pgid(4))
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}
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// Ensure that a buckets page can serialize itself.
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func TestBucketsWrite(t *testing.T) {
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b := &buckets{items: make(map[string]*bucket)}
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b.put("foo", &bucket{root: 2})
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b.put("bar", &bucket{root: 3})
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// Write it to a page.
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var buf [4096]byte
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p := (*page)(unsafe.Pointer(&buf[0]))
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b.write(p)
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// Read the page back in.
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b2 := &buckets{items: make(map[string]*bucket)}
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b2.read(p)
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// Check that the two pages are the same.
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assert.Equal(t, len(b.items), 2)
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assert.Equal(t, b.get("foo").root, pgid(2))
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assert.Equal(t, b.get("bar").root, pgid(3))
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}
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