[
{
"name": "England: born 1 September 2020, the oldest in Reception in 2025/26",
"args": [
"2020-09-01",
"2025-09-15",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2025,
"index": 0,
"yearGroup": "Reception",
"stage": "primary"
}
},
{
"name": "England: born 31 August 2021, the youngest in the same Reception class",
"args": [
"2021-08-31",
"2025-09-15",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2025,
"index": 0,
"yearGroup": "Reception",
"stage": "primary"
}
},
{
"name": "England: born a day earlier, 31 August 2020, is a year ahead in Year 1",
"args": [
"2020-08-31",
"2025-09-15",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2024,
"index": 1,
"yearGroup": "Year 1",
"stage": "primary"
}
},
{
"name": "England: 31 August is still the previous school year, before Reception",
"args": [
"2020-09-01",
"2025-08-31",
"england"
],
"expect": {
"schoolYearStart": "2024-09-01",
"entryYear": 2025,
"index": -1,
"yearGroup": null,
"stage": null
}
},
{
"name": "England: Year 7 is secondary",
"args": [
"2014-01-15",
"2025-11-01",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2018,
"index": 7,
"yearGroup": "Year 7",
"stage": "secondary"
}
},
{
"name": "England: Year 13, the last year",
"args": [
"2008-01-15",
"2026-03-01",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2012,
"index": 13,
"yearGroup": "Year 13",
"stage": "secondary"
}
},
{
"name": "England: after Year 13 there is no year group",
"args": [
"2007-01-15",
"2026-03-01",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2011,
"index": 14,
"yearGroup": null,
"stage": null
}
},
{
"name": "Wales uses the same cut-off and names",
"args": [
"2019-02-10",
"2026-01-10",
"wales"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2023,
"index": 2,
"yearGroup": "Year 2",
"stage": "primary"
}
},
{
"name": "Scotland: born 1 March 2020 starts P1 in August 2025",
"args": [
"2020-03-01",
"2025-08-20",
"scotland"
],
"expect": {
"schoolYearStart": "2025-08-01",
"entryYear": 2025,
"index": 0,
"yearGroup": "P1",
"stage": "primary"
}
},
{
"name": "Scotland: born 28 February 2021 is in the same P1",
"args": [
"2021-02-28",
"2025-08-20",
"scotland"
],
"expect": {
"schoolYearStart": "2025-08-01",
"entryYear": 2025,
"index": 0,
"yearGroup": "P1",
"stage": "primary"
}
},
{
"name": "Scotland: born 29 February 2020 belongs to the year before, P2, though aged like the 1 March children",
"args": [
"2020-02-29",
"2025-08-20",
"scotland"
],
"expect": {
"schoolYearStart": "2025-08-01",
"entryYear": 2024,
"index": 1,
"yearGroup": "P2",
"stage": "primary"
}
},
{
"name": "Scotland: July is still the previous session",
"args": [
"2020-03-01",
"2025-07-31",
"scotland"
],
"expect": {
"schoolYearStart": "2024-08-01",
"entryYear": 2025,
"index": -1,
"yearGroup": null,
"stage": null
}
},
{
"name": "Scotland: S1 is secondary",
"args": [
"2013-06-01",
"2025-10-01",
"scotland"
],
"expect": {
"schoolYearStart": "2025-08-01",
"entryYear": 2018,
"index": 7,
"yearGroup": "S1",
"stage": "secondary"
}
},
{
"name": "Scotland: S6 is the last year",
"args": [
"2008-05-01",
"2026-05-01",
"scotland"
],
"expect": {
"schoolYearStart": "2025-08-01",
"entryYear": 2013,
"index": 12,
"yearGroup": "S6",
"stage": "secondary"
}
},
{
"name": "Northern Ireland: 4 on 1 July 2025 starts P1 in September 2025",
"args": [
"2021-07-01",
"2025-09-10",
"northern-ireland"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2025,
"index": 0,
"yearGroup": "P1",
"stage": "primary"
}
},
{
"name": "Northern Ireland: 4 on 2 July 2025 waits a year",
"args": [
"2021-07-02",
"2025-09-10",
"northern-ireland"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2026,
"index": -1,
"yearGroup": null,
"stage": null
}
},
{
"name": "Northern Ireland: secondary years are numbered on from primary",
"args": [
"2011-12-01",
"2025-10-01",
"northern-ireland"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2016,
"index": 9,
"yearGroup": "Year 10",
"stage": "secondary"
}
},
{
"name": "Northern Ireland: Year 14, the last year",
"args": [
"2008-03-01",
"2026-03-01",
"northern-ireland"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2012,
"index": 13,
"yearGroup": "Year 14",
"stage": "secondary"
}
},
{
"name": "born today is years before school",
"args": [
"2025-09-15",
"2025-09-15",
"england"
],
"expect": {
"schoolYearStart": "2025-09-01",
"entryYear": 2030,
"index": -5,
"yearGroup": null,
"stage": null
}
},
{
"name": "onDate before birthDate is an error",
"args": [
"2020-09-01",
"2019-09-01",
"england"
],
"expectError": "onDate 2019-09-01 is before birthDate 2020-09-01"
},
{
"name": "an unknown nation is an error",
"args": [
"2020-09-01",
"2025-09-15",
"ireland"
],
"expectError": "unknown nation \"ireland\""
},
{
"name": "an impossible birth date is an error",
"args": [
"2021-02-29",
"2025-09-15",
"scotland"
],
"expectError": "\"2021-02-29\" is not a real calendar date"
}
]