converge/pkg/support/collections/linkedmap_test.go

145 lines
3.0 KiB
Go

package collections
import (
"github.com/stretchr/testify/suite"
"testing"
)
type LinkedMapTestSuite struct {
suite.Suite
}
func (s *LinkedMapTestSuite) SetupSuite() {
checkStatus = true
}
func (s *LinkedMapTestSuite) TearDownSuite() {
checkStatus = false
}
func (s *LinkedMapTestSuite) SetupTest() {
}
func (s *LinkedMapTestSuite) TearDownTest() {
}
func TestLinkedMapSuite(t *testing.T) {
suite.Run(t, &LinkedMapTestSuite{})
}
func (s *LinkedMapTestSuite) contentCheck(m *LinkedMap[string, int],
keys []string, values []int) {
s.True(len(keys) == len(values), "input error expected keys and values differ in length")
// keys
i := 0
for key := range m.RangeKeys() {
s.True(i < len(keys), "Too many elements in map")
s.Equal(keys[i], key)
i++
}
s.Equal(len(keys), i)
// values
i = 0
for value := range m.RangeValues() {
s.True(i < len(values), "Too many elements in map")
s.Equal(values[i], value)
i++
}
s.Equal(len(values), i)
// Entries
i = 0
for entry := range m.RangeEntries() {
s.True(i < len(values), "Too many elements in map")
s.Equal(keys[i], entry.Key)
s.Equal(values[i], entry.Value)
i++
}
s.Equal(len(values), i)
// Get and Contains
for i, key := range keys {
v, ok := m.Get(key)
s.True(ok)
s.Equal(values[i], v)
s.True(m.Contains(key))
}
}
func (s *LinkedMapTestSuite) Test_emptymap() {
m := NewLinkedMap[string, int]()
s.contentCheck(m, []string{}, []int{})
}
func (s *LinkedMapTestSuite) Test_elementAddRemove() {
m := NewLinkedMap[string, int]()
m.Put("a", 1)
s.contentCheck(m, []string{"a"}, []int{1})
s.False(m.Delete("b"))
s.contentCheck(m, []string{"a"}, []int{1})
s.True(m.Delete("a"))
s.contentCheck(m, []string{}, []int{})
}
func (s *LinkedMapTestSuite) Test_GetContainsForElementsNotInMap() {
m := s.createSimpleMap()
s.False(m.Contains("d"))
val, ok := m.Get("d")
s.False(ok)
s.Equal(0, val)
}
func (s *LinkedMapTestSuite) Test_elementRemoveBeginning() {
m := s.createSimpleMap()
s.True(m.Delete("a"))
s.contentCheck(m, []string{"b", "c"}, []int{2, 3})
}
func (s *LinkedMapTestSuite) Test_elementRemoveMiddle() {
m := s.createSimpleMap()
s.True(m.Delete("b"))
s.contentCheck(m, []string{"a", "c"}, []int{1, 3})
}
func (s *LinkedMapTestSuite) Test_elementRemoveEnd() {
m := s.createSimpleMap()
s.True(m.Delete("c"))
s.contentCheck(m, []string{"a", "b"}, []int{1, 2})
}
func (s *LinkedMapTestSuite) Test_addSameElementAgain() {
m := s.createSimpleMap()
m.Put("b", 4)
s.contentCheck(m, []string{"a", "c", "b"}, []int{1, 3, 4})
}
func (s *LinkedMapTestSuite) createSimpleMap() *LinkedMap[string, int] {
m := NewLinkedMap[string, int]()
m.Put("a", 1)
m.Put("b", 2)
m.Put("c", 3)
s.contentCheck(m, []string{"a", "b", "c"}, []int{1, 2, 3})
return m
}
func (s *LinkedMapTestSuite) Test_manyElements() {
m := NewLinkedMap[string, int]()
chars := "0123456789"
for i := 0; i < 10000; i++ {
m.Put(chars[i%10:i%10+1], i)
}
s.contentCheck(m,
[]string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"},
[]int{9990, 9991, 9992, 9993, 9994, 9995, 9996, 9997, 9998, 9999})
}