forked from mirror/redis
137 lines
3.3 KiB
Go
137 lines
3.3 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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"github.com/go-redis/redis/v9"
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)
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var _ = Describe("ScanIterator", func() {
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var client *redis.Client
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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(ctx, fmt.Sprintf("K%02d", i), "x", 0).Err()
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}
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_, err := pipe.Exec(ctx)
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return err
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}
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extraSeed := func(n int, m int) error {
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pipe := client.Pipeline()
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for i := 1; i <= m; i++ {
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pipe.Set(ctx, fmt.Sprintf("A%02d", i), "x", 0).Err()
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}
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for i := 1; i <= n; i++ {
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pipe.Set(ctx, fmt.Sprintf("K%02d", i), "x", 0).Err()
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}
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_, err := pipe.Exec(ctx)
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return err
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}
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hashKey := "K_HASHTEST"
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hashSeed := 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.HSet(ctx, hashKey, fmt.Sprintf("K%02d", i), "x").Err()
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}
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_, err := pipe.Exec(ctx)
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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(ctx).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(ctx, 0, "", 10).Iterator()
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Expect(iter.Next(ctx)).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(ctx, 0, "", 0).Iterator()
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for iter.Next(ctx) {
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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(ctx, 0, "", 10).Iterator()
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for iter.Next(ctx) {
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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 hscan across multiple pages", func() {
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Expect(hashSeed(71)).NotTo(HaveOccurred())
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var vals []string
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iter := client.HScan(ctx, hashKey, 0, "", 10).Iterator()
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for iter.Next(ctx) {
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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 * 2))
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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(ctx, 0, "", 10).Iterator()
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for iter.Next(ctx) {
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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(ctx, 0, "K*2*", 10).Iterator()
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for iter.Next(ctx) {
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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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It("should scan with match across empty pages", func() {
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Expect(extraSeed(2, 10)).NotTo(HaveOccurred())
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var vals []string
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iter := client.Scan(ctx, 0, "K*", 1).Iterator()
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for iter.Next(ctx) {
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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(2))
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})
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})
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