feat: solve day 2 part 2

cmd/02/rnge/rnge_test.go

@@ -42,12 +42,12 @@ func TestEnd(t *testing.T) {
 	}
 }
 
-func TestInvalidIds(t *testing.T) {
+func TestInvalidIdsWithEqualValues(t *testing.T) {
 	r := rnge.From("1000-1100")
 	expectedInvalidIds := []int64{1010}
 	resultInvalidIds := []int64{}
 
-	for id := range r.InvalidIds() {
+	for id := range r.InvalidIdsWithEqualHalves() {
 		resultInvalidIds = append(resultInvalidIds, id)
 	}
 
@@ -55,3 +55,46 @@ func TestInvalidIds(t *testing.T) {
 		t.Errorf("expected invalid IDs %v, got %v", expectedInvalidIds, resultInvalidIds)
 	}
 }
+
+type TestCase struct {
+	rnge               rnge.Range
+	expectedInvalidIds []int64
+}
+
+func TestInvalidIdsWithTwoOrMoreSeq(t *testing.T) {
+	testCases := []TestCase{
+		{
+			rnge:               rnge.From("11-22"),
+			expectedInvalidIds: []int64{11, 22},
+		},
+		{
+			rnge:               rnge.From("95-115"),
+			expectedInvalidIds: []int64{99, 111},
+		},
+		{
+			rnge:               rnge.From("998-1012"),
+			expectedInvalidIds: []int64{999, 1010},
+		},
+		{
+			rnge:               rnge.From("1188511880-1188511890"),
+			expectedInvalidIds: []int64{1188511885},
+		},
+		{
+			rnge:               rnge.From("222220-222224"),
+			expectedInvalidIds: []int64{222222},
+		},
+	}
+
+	for _, c := range testCases {
+		resultInvalidIds := []int64{}
+
+		for id := range c.rnge.InvalidIdsWithTwoOrMoreSeq() {
+			resultInvalidIds = append(resultInvalidIds, id)
+		}
+
+		if slices.Equal(resultInvalidIds, c.expectedInvalidIds) == false {
+			t.Errorf("expected invalid IDs %v, got %v", c.expectedInvalidIds, resultInvalidIds)
+		}
+	}
+
+}