ClickHouse/programs/diagnostics/internal/platform/utils/slices_test.go

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2022-04-27 12:22:20 +00:00
package utils_test
import (
"testing"
"github.com/ClickHouse/ClickHouse/programs/diagnostics/internal/platform/utils"
"github.com/stretchr/testify/require"
2022-04-27 12:22:20 +00:00
)
func TestIntersection(t *testing.T) {
t.Run("can perform intersection", func(t *testing.T) {
setA := []string{"A", "b", "C", "D", "E"}
setB := []string{"A", "B", "F", "C", "G"}
setC := utils.Intersection(setA, setB)
require.Len(t, setC, 2)
require.ElementsMatch(t, []string{"A", "C"}, setC)
})
}
func TestDistinct(t *testing.T) {
t.Run("can perform distinct", func(t *testing.T) {
setA := []string{"A", "b", "C", "D", "E"}
setB := []string{"A", "B", "F", "C", "G"}
setC := utils.Distinct(setA, setB)
require.Len(t, setC, 3)
require.ElementsMatch(t, []string{"b", "D", "E"}, setC)
})
t.Run("can perform distinct on empty", func(t *testing.T) {
setA := []string{"A", "b", "C", "D", "E"}
var setB []string
setC := utils.Distinct(setA, setB)
require.Len(t, setC, 5)
require.ElementsMatch(t, []string{"A", "b", "C", "D", "E"}, setC)
})
}
func TestContains(t *testing.T) {
t.Run("can perform contains", func(t *testing.T) {
setA := []string{"A", "b", "C", "D", "E"}
require.True(t, utils.Contains(setA, "A"))
require.True(t, utils.Contains(setA, "b"))
require.True(t, utils.Contains(setA, "C"))
require.True(t, utils.Contains(setA, "D"))
require.True(t, utils.Contains(setA, "E"))
require.False(t, utils.Contains(setA, "B"))
})
}
func TestUnique(t *testing.T) {
t.Run("can perform unique", func(t *testing.T) {
setA := []string{"A", "b", "D", "D", "E", "E", "A"}
setC := utils.Unique(setA)
require.Len(t, setC, 4)
require.ElementsMatch(t, []string{"A", "b", "D", "E"}, setC)
})
t.Run("can perform unique on empty", func(t *testing.T) {
var setA []string
setC := utils.Unique(setA)
require.Len(t, setC, 0)
})
}