Inconsistent date range parsing

[aphilas]

Works as expected

from 2025 for two years

"to": {
"value": "2028-01-01T00:00:00.000+00:00",
"grain": "year"
},
"from": {
"value": "2025-01-01T00:00:00.000+00:00",
"grain": "year"
}

Bugs?

between 2025 and 2027

! should include 2027

"to": {
"value": "2028-01-01T00:00:00.000+00:00",
"grain": "year"
},
"from": {
"value": "2025-01-01T00:00:00.000+00:00",
"grain": "year"
}

---

2025 to 2027

! should include 2027

"to": {
"value": "2028-01-01T00:00:00.000+00:00",
"grain": "year"
},
"from": {
"value": "2025-01-01T00:00:00.000+00:00",
"grain": "year"
}

---

from 2025 to 2027

! no end date

"from": {
"value": "2025-01-01T00:00:00.000+00:00",
"grain": "year"
}

---

Bonus, with grain month : )

from April to July

! should last through July

"to": {
"value": "2024-08-01T00:00:00.000+00:00",
"grain": "month"
},
"from": {
"value": "2024-04-01T00:00:00.000+00:00",
"grain": "month"
}

NOTE: In all cases, I am assuming duckling uses exclusive upper bound, and the upper bound is always incremented by one grain

[aphilas]

Closing until I have a better description/manual steps

Might have to create multiple issues