44 lines
878 B
Go
44 lines
878 B
Go
package iterator
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import (
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"reflect"
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"testing"
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)
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func TestNotIteratorBasics(t *testing.T) {
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allIt := NewFixed(Identity)
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allIt.Add(1)
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allIt.Add(2)
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allIt.Add(3)
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allIt.Add(4)
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toComplementIt := NewFixed(Identity)
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toComplementIt.Add(2)
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toComplementIt.Add(4)
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not := NewNot(toComplementIt, allIt)
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if v, _ := not.Size(); v != 2 {
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t.Errorf("Unexpected iterator size: got:%d, expected: %d", v, 2)
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}
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expect := []int{1, 3}
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for i := 0; i < 2; i++ {
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if got := iterated(not); !reflect.DeepEqual(got, expect) {
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t.Errorf("Failed to iterate Not correctly on repeat %d: got:%v expected:%v", i, got, expect)
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}
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not.Reset()
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}
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for _, v := range []int{1, 3} {
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if !not.Contains(v) {
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t.Errorf("Failed to correctly check %d as true", v)
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}
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}
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for _, v := range []int{2, 4} {
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if not.Contains(v) {
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t.Errorf("Failed to correctly check %d as false", v)
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}
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}
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}
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