mirror of https://github.com/go-redis/redis.git
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
package redis_test
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import (
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"fmt"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"gopkg.in/redis.v4"
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)
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var _ = Describe("ScanIterator", func() {
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var client *redis.Client
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var seed = func(n int) error {
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pipe := client.Pipeline()
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for i := 1; i <= n; i++ {
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pipe.Set(fmt.Sprintf("K%02d", i), "x", 0).Err()
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}
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_, err := pipe.Exec()
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return err
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}
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BeforeEach(func() {
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client = redis.NewClient(redisOptions())
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Expect(client.FlushDb().Err()).NotTo(HaveOccurred())
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})
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AfterEach(func() {
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Expect(client.Close()).NotTo(HaveOccurred())
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})
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It("should scan across empty DBs", func() {
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iter := client.Scan(0, "", 10).Iterator()
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Expect(iter.Next()).To(BeFalse())
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Expect(iter.Err()).NotTo(HaveOccurred())
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})
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It("should scan across one page", func() {
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Expect(seed(7)).NotTo(HaveOccurred())
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var vals []string
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iter := client.Scan(0, "", 0).Iterator()
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for iter.Next() {
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vals = append(vals, iter.Val())
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}
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Expect(iter.Err()).NotTo(HaveOccurred())
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Expect(vals).To(ConsistOf([]string{"K01", "K02", "K03", "K04", "K05", "K06", "K07"}))
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})
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It("should scan across multiple pages", func() {
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Expect(seed(71)).NotTo(HaveOccurred())
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var vals []string
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iter := client.Scan(0, "", 10).Iterator()
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for iter.Next() {
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vals = append(vals, iter.Val())
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}
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Expect(iter.Err()).NotTo(HaveOccurred())
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Expect(vals).To(HaveLen(71))
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Expect(vals).To(ContainElement("K01"))
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Expect(vals).To(ContainElement("K71"))
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})
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It("should scan to page borders", func() {
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Expect(seed(20)).NotTo(HaveOccurred())
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var vals []string
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iter := client.Scan(0, "", 10).Iterator()
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for iter.Next() {
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vals = append(vals, iter.Val())
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}
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Expect(iter.Err()).NotTo(HaveOccurred())
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Expect(vals).To(HaveLen(20))
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})
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It("should scan with match", func() {
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Expect(seed(33)).NotTo(HaveOccurred())
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var vals []string
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iter := client.Scan(0, "K*2*", 10).Iterator()
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for iter.Next() {
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vals = append(vals, iter.Val())
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}
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Expect(iter.Err()).NotTo(HaveOccurred())
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Expect(vals).To(HaveLen(13))
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})
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})
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