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Keys() method added for listing stored keys in database. Usage added in README and pkg/main.go. Signed-off-by: Gökhan Özeloğlu <[email protected]>
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Original file line number | Diff line number | Diff line change |
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package kvs | ||
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// Keys list the stored keys in a slice. If db is empty, empty slice is returned. | ||
func (k *Kvs) Keys() []string { | ||
k.mu.Lock() | ||
defer k.mu.Unlock() | ||
var keys []string | ||
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for key := range k.kv { | ||
keys = append(keys, key) | ||
} | ||
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return keys | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,69 @@ | ||
package kvs | ||
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import ( | ||
"os" | ||
"testing" | ||
"time" | ||
) | ||
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func TestKvs_Keys(t *testing.T) { | ||
db, err := open(t.Name(), "", 2*time.Minute) | ||
if err != nil { | ||
t.Fatalf(err.Error()) | ||
} | ||
t.Logf("db created.") | ||
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pairs := []string{"foo", "1", "bar", "2", "fizz", "3", "buzz", "4"} | ||
for i := 0; i < len(pairs); i += 2 { | ||
db.Set(pairs[i], pairs[i+1]) | ||
} | ||
t.Logf("key-value pairs are set.") | ||
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keys := db.Keys() | ||
if len(keys) != len(pairs)/2 { | ||
t.Errorf("Fetched keys are wrong. pairs len is %d, "+ | ||
"fetched len is %d.", len(pairs)/2, len(keys)) | ||
} | ||
for _, k := range keys { | ||
t.Logf(k) | ||
} | ||
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err = db.Close() | ||
if err != nil { | ||
t.Fatalf(err.Error()) | ||
} | ||
t.Logf("db closed.") | ||
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err = os.RemoveAll(db.dir) | ||
if err != nil { | ||
t.Fatalf(err.Error()) | ||
} | ||
t.Logf("temp db removed.") | ||
} | ||
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func TestKvs_EmptyKeys(t *testing.T) { | ||
db, err := open(t.Name(), "", 2*time.Minute) | ||
if err != nil { | ||
t.Fatalf(err.Error()) | ||
} | ||
t.Logf("db created.") | ||
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keys := db.Keys() | ||
if len(keys) != 0 { | ||
t.Errorf("Fetched keys are wrong. pairs len is %d, "+ | ||
"fetched len is %d.", 0, len(keys)) | ||
} | ||
t.Logf("Empty slice: %d", len(keys)) | ||
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err = db.Close() | ||
if err != nil { | ||
t.Fatalf(err.Error()) | ||
} | ||
t.Logf("db closed.") | ||
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err = os.RemoveAll(db.dir) | ||
if err != nil { | ||
t.Fatalf(err.Error()) | ||
} | ||
t.Logf("temp db removed.") | ||
} |