package logstorage

import (
	"testing"
)

func TestPipeDeleteUpdateNeededFields(t *testing.T) {
	f := func(s, neededFields, unneededFields, neededFieldsExpected, unneededFieldsExpected string) {
		t.Helper()
		expectPipeNeededFields(t, s, neededFields, unneededFields, neededFieldsExpected, unneededFieldsExpected)
	}

	// all the needed fields
	f("del s1,s2", "*", "", "*", "s1,s2")

	// all the needed fields, unneeded fields do not intersect with src
	f("del s1,s2", "*", "f1,f2", "*", "s1,s2,f1,f2")

	// all the needed fields, unneeded fields intersect with src
	f("del s1,s2", "*", "s1,f1,f2", "*", "s1,s2,f1,f2")

	// needed fields do not intersect with src
	f("del s1,s2", "f1,f2", "", "f1,f2", "")

	// needed fields intersect with src
	f("del s1,s2", "s1,f1,f2", "", "f1,f2", "")
}