Add 'bolt get'.

1 files changed, 75 insertions, 0 deletions

diff --git a/cmd/bolt/main_test.go b/cmd/bolt/main_test.go
new file mode 100644
index 0000000..5c70c97
--- /dev/null
+++ b/cmd/bolt/main_test.go
@@ -0,0 +1,75 @@
+package main_test
+
+import (
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/boltdb/bolt"
+	. "github.com/boltdb/bolt/cmd/bolt"
+	"github.com/stretchr/testify/assert"
+)
+
+// Ensure that a value can be retrieved from the CLI.
+func TestGet(t *testing.T) {
+	SetTestMode(true)
+	open(func(db *bolt.DB) {
+		db.Do(func(tx *bolt.Tx) error {
+			tx.CreateBucket("widgets")
+			tx.Bucket("widgets").Put([]byte("foo"), []byte("bar"))
+			return nil
+		})
+		output := run("get", db.Path(), "widgets", "foo")
+		assert.Equal(t, "bar", output)
+	})
+}
+
+// Ensure that an error is reported if the database is not found.
+func TestGetDBNotFound(t *testing.T) {
+	SetTestMode(true)
+	output := run("get", "no/such/db", "widgets", "foo")
+	assert.Equal(t, "stat no/such/db: no such file or directory", output)
+}
+
+// Ensure that an error is reported if the bucket is not found.
+func TestGetBucketNotFound(t *testing.T) {
+	SetTestMode(true)
+	open(func(db *bolt.DB) {
+		output := run("get", db.Path(), "widgets", "foo")
+		assert.Equal(t, "bucket not found: widgets", output)
+	})
+}
+
+// Ensure that an error is reported if the key is not found.
+func TestGetKeyNotFound(t *testing.T) {
+	SetTestMode(true)
+	open(func(db *bolt.DB) {
+		db.Do(func(tx *bolt.Tx) error {
+			return tx.CreateBucket("widgets")
+		})
+		output := run("get", db.Path(), "widgets", "foo")
+		assert.Equal(t, "key not found: foo", output)
+	})
+}
+
+// open creates and opens a Bolt database in the temp directory.
+func open(fn func(*bolt.DB)) {
+	f, _ := ioutil.TempFile("", "bolt-")
+	f.Close()
+	os.Remove(f.Name())
+	defer os.RemoveAll(f.Name())
+
+	db, err := bolt.Open(f.Name(), 0600)
+	if err != nil {
+		panic("db open error: " + err.Error())
+	}
+	fn(db)
+}
+
+// run executes a command against the CLI and returns the output.
+func run(args ...string) string {
+	args = append([]string{"bolt"}, args...)
+	NewApp().Run(args)
+	return strings.TrimSpace(LogBuffer())
+}