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lists_test.go
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lists_test.go
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package redimo
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestLBasics(t *testing.T) {
c := newClient(t)
length, err := c.LPUSH("l1", StringValue{"twinkle"})
assert.NoError(t, err)
assert.Equal(t, int64(1), length)
elements, err := c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"twinkle"}, readStrings(elements))
length, err = c.LPUSH("l1", StringValue{"twinkle"})
assert.NoError(t, err)
assert.Equal(t, int64(2), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"twinkle", "twinkle"}, readStrings(elements))
length, err = c.RPUSH("l1", StringValue{"little"}, StringValue{"star"})
assert.NoError(t, err)
assert.Equal(t, int64(4), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"twinkle", "twinkle", "little", "star"}, readStrings(elements))
element, err := c.LPOP("l1")
assert.NoError(t, err)
assert.Equal(t, "twinkle", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"twinkle", "little", "star"}, readStrings(elements))
element, err = c.RPOP("l1")
assert.NoError(t, err)
assert.Equal(t, "star", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"twinkle", "little"}, readStrings(elements))
count, err := c.LLEN("l1")
assert.NoError(t, err)
assert.Equal(t, int64(2), count)
length, err = c.LPUSHX("l1", StringValue{"wrinkle"})
assert.NoError(t, err)
assert.Equal(t, int64(3), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"wrinkle", "twinkle", "little"}, readStrings(elements))
length, err = c.RPUSHX("l1", StringValue{"car"})
assert.NoError(t, err)
assert.Equal(t, int64(4), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"wrinkle", "twinkle", "little", "car"}, readStrings(elements))
elements, err = c.LRANGE("l1", 0, 2)
assert.NoError(t, err)
assert.Equal(t, []string{"wrinkle", "twinkle", "little"}, readStrings(elements))
elements, err = c.LRANGE("l1", 0, -2)
assert.NoError(t, err)
assert.Equal(t, []string{"wrinkle", "twinkle", "little"}, readStrings(elements))
elements, err = c.LRANGE("l1", -3, -2)
assert.NoError(t, err)
assert.Equal(t, []string{"twinkle", "little"}, readStrings(elements))
elements, err = c.LRANGE("l1", -2, -3)
assert.NoError(t, err)
assert.Empty(t, elements)
elements, err = c.LRANGE("l1", 3, 2)
assert.NoError(t, err)
assert.Empty(t, elements)
length, err = c.RPUSHX("nonexistentlist", StringValue{"car"})
assert.NoError(t, err)
assert.Equal(t, int64(0), length)
length, err = c.LPUSHX("nonexistentlist", StringValue{"car"})
assert.NoError(t, err)
assert.Equal(t, int64(0), length)
elements, err = c.LRANGE("nonexistentlist", 0, -1)
assert.NoError(t, err)
assert.Empty(t, elements)
element, err = c.LPOP("nonexistent")
assert.NoError(t, err)
assert.True(t, element.Empty())
element, err = c.RPOP("nonexistent")
assert.NoError(t, err)
assert.True(t, element.Empty())
}
func readStrings(elements []ReturnValue) (strs []string) {
for _, e := range elements {
strs = append(strs, e.String())
}
return
}
func TestRPOPLPUSH(t *testing.T) {
c := newClient(t)
length, err := c.RPUSH("l1", StringValue{"one"}, StringValue{"two"}, StringValue{"three"}, StringValue{"four"})
assert.NoError(t, err)
assert.Equal(t, int64(4), length)
length, err = c.RPUSH("l2", StringValue{"five"}, StringValue{"six"}, StringValue{"seven"}, StringValue{"eight"})
assert.NoError(t, err)
assert.Equal(t, int64(4), length)
element, err := c.RPOPLPUSH("l1", "l1")
assert.NoError(t, err)
assert.Equal(t, "four", element.String())
elements, err := c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"four", "one", "two", "three"}, readStrings(elements))
element, err = c.RPOPLPUSH("l1", "l2")
assert.NoError(t, err)
assert.Equal(t, "three", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"four", "one", "two"}, readStrings(elements))
elements, err = c.LRANGE("l2", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"three", "five", "six", "seven", "eight"}, readStrings(elements))
element, err = c.RPOPLPUSH("l1", "l1")
assert.NoError(t, err)
assert.Equal(t, "two", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"two", "four", "one"}, readStrings(elements))
element, err = c.RPOPLPUSH("l1", "newList")
assert.NoError(t, err)
assert.Equal(t, "one", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"two", "four"}, readStrings(elements))
elements, err = c.LRANGE("newList", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"one"}, readStrings(elements))
// Two item single list rotation - they should simply switch places
element, err = c.RPOPLPUSH("l1", "l1")
assert.NoError(t, err)
assert.Equal(t, "four", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"four", "two"}, readStrings(elements))
_, err = c.LPOP("l1")
assert.NoError(t, err)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"two"}, readStrings(elements))
// Single element single list rotation is a no-op
element, err = c.RPOPLPUSH("l1", "l1")
assert.NoError(t, err)
assert.Equal(t, "two", element.String())
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"two"}, readStrings(elements))
}
func TestListIndexBasedCRUD(t *testing.T) {
c := newClient(t)
_, err := c.RPUSH("l1", StringValue{"inty"}, StringValue{"minty"}, StringValue{"papa"}, StringValue{"tinty"})
assert.NoError(t, err)
element, err := c.LINDEX("l1", 0)
assert.NoError(t, err)
assert.Equal(t, "inty", element.String())
element, err = c.LINDEX("l1", 3)
assert.NoError(t, err)
assert.Equal(t, "tinty", element.String())
element, err = c.LINDEX("l1", 4)
assert.NoError(t, err)
assert.False(t, element.Present())
element, err = c.LINDEX("l1", 42)
assert.NoError(t, err)
assert.False(t, element.Present())
element, err = c.LINDEX("l1", -1)
assert.NoError(t, err)
assert.True(t, element.Present())
assert.Equal(t, "tinty", element.String())
element, err = c.LINDEX("l1", -4)
assert.NoError(t, err)
assert.Equal(t, "inty", element.String())
element, err = c.LINDEX("l1", -42)
assert.NoError(t, err)
assert.True(t, element.Empty())
ok, err := c.LSET("l1", 1, "monty")
assert.NoError(t, err)
assert.True(t, ok)
element, err = c.LINDEX("l1", 1)
assert.NoError(t, err)
assert.Equal(t, "monty", element.String())
ok, err = c.LSET("l1", -2, "mama")
assert.NoError(t, err)
assert.True(t, ok)
element, err = c.LINDEX("l1", -2)
assert.NoError(t, err)
assert.Equal(t, "mama", element.String())
ok, err = c.LSET("l1", 42, "no chance")
assert.NoError(t, err)
assert.False(t, ok)
count, err := c.LLEN("l1")
assert.NoError(t, err)
assert.Equal(t, int64(4), count)
elements, err := c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"inty", "monty", "mama", "tinty"}, readStrings(elements))
}
func TestListValueBasedCRUD(t *testing.T) {
c := newClient(t)
length, err := c.RPUSH("l1", StringValue{"beta"}, StringValue{"delta"}, StringValue{"phi"})
assert.NoError(t, err)
assert.Equal(t, int64(3), length)
elements, err := c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"beta", "delta", "phi"}, readStrings(elements))
length, ok, err := c.LINSERT("l1", Left, StringValue{"delta"}, StringValue{"gamma"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(4), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"beta", "gamma", "delta", "phi"}, readStrings(elements))
length, ok, err = c.LINSERT("l1", Left, StringValue{"beta"}, StringValue{"alpha"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(5), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"alpha", "beta", "gamma", "delta", "phi"}, readStrings(elements))
length, ok, err = c.LINSERT("l1", Right, StringValue{"phi"}, StringValue{"omega"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(6), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"alpha", "beta", "gamma", "delta", "phi", "omega"}, readStrings(elements))
length, ok, err = c.LREM("l1", Left, StringValue{"gamma"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(5), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"alpha", "beta", "delta", "phi", "omega"}, readStrings(elements))
length, ok, err = c.LREM("l1", Left, StringValue{"omega"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(4), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"alpha", "beta", "delta", "phi"}, readStrings(elements))
length, ok, err = c.LREM("l1", Left, StringValue{"alpha"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(3), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"beta", "delta", "phi"}, readStrings(elements))
length, err = c.RPUSH("l1", StringValue{"delta"}, StringValue{"gamma"}, StringValue{"delta"}, StringValue{"mu"})
assert.NoError(t, err)
assert.Equal(t, int64(7), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"beta", "delta", "phi", "delta", "gamma", "delta", "mu"}, readStrings(elements))
length, ok, err = c.LREM("l1", Left, StringValue{"delta"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(6), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"beta", "phi", "delta", "gamma", "delta", "mu"}, readStrings(elements))
length, ok, err = c.LREM("l1", Right, StringValue{"delta"})
assert.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, int64(5), length)
elements, err = c.LRANGE("l1", 0, -1)
assert.NoError(t, err)
assert.Equal(t, []string{"beta", "phi", "delta", "gamma", "mu"}, readStrings(elements))
_, ok, err = c.LINSERT("l1", Left, StringValue{"no such element"}, StringValue{"alpha"})
assert.NoError(t, err)
assert.False(t, ok)
_, ok, err = c.LREM("l1", Left, StringValue{"no such element"})
assert.NoError(t, err)
assert.False(t, ok)
}