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test: Add falling block behavior coverage #25

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29e0b43
test: add falling block behavior coverage
kdcokenny Aug 16, 2026
34db7a3
test: simplify falling powder basin
kdcokenny Aug 16, 2026
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43 changes: 43 additions & 0 deletions tests/blocks/falling/concrete_powder_hardens_beside_water.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "concrete_powder_hardens_beside_water",
"description": "Supported blue concrete powder hardens when a neighboring water source is added beside it.",
"tags": ["blocks", "falling-block", "concrete-powder", "water", "hardening", "neighbor-update"],
"minecraftIds": ["minecraft:blue_concrete_powder"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [0, 0, 0], [1, 1, 0] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [0, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [1, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [0, 1, 0], "block": {"id": "minecraft:blue_concrete_powder"} }
]
},
{
"at": 3,
"do": "assert",
"checks": [
{ "pos": [0, 1, 0], "is": {"id": "minecraft:blue_concrete_powder"} }
]
},
{ "at": 3, "do": "place", "pos": [1, 1, 0], "block": {"id": "minecraft:water"} },
{
"at": 4,
"do": "assert",
"checks": [
{ "pos": [0, 1, 0], "is": {"id": "minecraft:blue_concrete"} },
{ "pos": [1, 1, 0], "is": {"id": "minecraft:water" } }
]
}
],
"breakpoints": []
}

53 changes: 53 additions & 0 deletions tests/blocks/falling/falling_concrete_powder_hardens_in_water.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "falling_concrete_powder_hardens_in_water",
"description": "Unsupported red concrete powder becomes a falling block and hardens when it enters a contained water source.",
"tags": ["blocks", "falling-block", "concrete-powder", "water", "hardening", "settling"],
"minecraftIds": ["minecraft:red_concrete_powder"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [-1, 0, -1], [1, 5, 1] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [ 0, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [-1, 1, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [ 1, 1, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [ 0, 1, -1], "block": {"id": "minecraft:stone" } },
{ "pos": [ 0, 1, 1], "block": {"id": "minecraft:stone" } },
{ "pos": [ 0, 1, 0], "block": {"id": "minecraft:water" } },
{ "pos": [ 0, 5, 0], "block": {"id": "minecraft:red_concrete_powder"} }
]
},
{
"at": 1,
"do": "assert",
"checks": [
{ "pos": [0, 5, 0], "is": {"id": "minecraft:red_concrete_powder"} },
{ "pos": [0, 1, 0], "is": {"id": "minecraft:water" } }
]
},
{
"at": 2,
"do": "assert",
"checks": [
{ "pos": [0, 5, 0], "is": {"id": "minecraft:air"} }
]
},
{
"at": 24,
"do": "assert",
"checks": [
{ "pos": [0, 1, 0], "is": {"id": "minecraft:red_concrete"} }
]
}
],
"breakpoints": []
}

51 changes: 51 additions & 0 deletions tests/blocks/falling/stacked_falling_blocks_settle_in_order.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "stacked_falling_blocks_settle_in_order",
"description": "A sand block and the gravel above it fall together and settle as an ordered two-block stack on the floor.",
"tags": ["blocks", "falling-block", "sand", "gravel", "stacked", "settling"],
"minecraftIds": ["minecraft:sand", "minecraft:gravel"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [0, 0, 0], [0, 5, 0] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [0, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [0, 4, 0], "block": {"id": "minecraft:sand" } },
{ "pos": [0, 5, 0], "block": {"id": "minecraft:gravel"} }
]
},
{
"at": 1,
"do": "assert",
"checks": [
{ "pos": [0, 4, 0], "is": {"id": "minecraft:sand" } },
{ "pos": [0, 5, 0], "is": {"id": "minecraft:gravel"} }
]
},
{
"at": 2,
"do": "assert",
"checks": [
{ "pos": [0, 4, 0], "is": {"id": "minecraft:air"} },
{ "pos": [0, 5, 0], "is": {"id": "minecraft:air"} }
]
},
{
"at": 24,
"do": "assert",
"checks": [
{ "pos": [0, 1, 0], "is": {"id": "minecraft:sand" } },
{ "pos": [0, 2, 0], "is": {"id": "minecraft:gravel"} }
]
}
],
"breakpoints": []
}

56 changes: 56 additions & 0 deletions tests/blocks/falling/support_removal_triggers_sand_fall.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "support_removal_triggers_sand_fall",
"description": "Removing a settled sand block's support schedules a new falling check, after which the sand falls and settles on the lower floor.",
"tags": ["blocks", "falling-block", "sand", "support", "neighbor-update", "timing"],
"minecraftIds": ["minecraft:sand"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [0, 0, 0], [0, 4, 0] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [0, 0, 0], "block": {"id": "minecraft:stone"} },
{ "pos": [0, 3, 0], "block": {"id": "minecraft:stone"} },
{ "pos": [0, 4, 0], "block": {"id": "minecraft:sand" } }
]
},
{
"at": 3,
"do": "assert",
"checks": [
{ "pos": [0, 4, 0], "is": {"id": "minecraft:sand"} }
]
},
{ "at": 3, "do": "remove", "pos": [0, 3, 0] },
{
"at": 4,
"do": "assert",
"checks": [
{ "pos": [0, 4, 0], "is": {"id": "minecraft:sand"} }
]
},
{
"at": 5,
"do": "assert",
"checks": [
{ "pos": [0, 4, 0], "is": {"id": "minecraft:air"} }
]
},
{
"at": 24,
"do": "assert",
"checks": [
{ "pos": [0, 1, 0], "is": {"id": "minecraft:sand"} }
]
}
],
"breakpoints": []
}

36 changes: 36 additions & 0 deletions tests/blocks/falling/supported_sand_and_gravel_stay_in_place.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "supported_sand_and_gravel_stay_in_place",
"description": "Sand and gravel remain blocks after their scheduled falling checks when each has solid support.",
"tags": ["blocks", "falling-block", "sand", "gravel", "support", "timing"],
"minecraftIds": ["minecraft:sand", "minecraft:gravel"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [-1, 0, 0], [1, 1, 0] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [-1, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [ 1, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [-1, 1, 0], "block": {"id": "minecraft:sand" } },
{ "pos": [ 1, 1, 0], "block": {"id": "minecraft:gravel"} }
]
},
{
"at": 3,
"do": "assert",
"checks": [
{ "pos": [-1, 1, 0], "is": {"id": "minecraft:sand" } },
{ "pos": [ 1, 1, 0], "is": {"id": "minecraft:gravel"} }
]
}
],
"breakpoints": []
}

52 changes: 52 additions & 0 deletions tests/blocks/falling/unsupported_sand_and_gravel_fall_after_delay.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "unsupported_sand_and_gravel_fall_after_delay",
"description": "Unsupported sand and gravel remain through the first tick, begin falling after Vanilla's two-tick scheduled delay, and settle on the floor.",
"tags": ["blocks", "falling-block", "sand", "gravel", "unsupported", "timing"],
"minecraftIds": ["minecraft:sand", "minecraft:gravel"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [-1, 0, 0], [1, 3, 0] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [-1, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [ 1, 0, 0], "block": {"id": "minecraft:stone" } },
{ "pos": [-1, 3, 0], "block": {"id": "minecraft:sand" } },
{ "pos": [ 1, 3, 0], "block": {"id": "minecraft:gravel"} }
]
},
{
"at": 1,
"do": "assert",
"checks": [
{ "pos": [-1, 3, 0], "is": {"id": "minecraft:sand" } },
{ "pos": [ 1, 3, 0], "is": {"id": "minecraft:gravel"} }
]
},
{
"at": 2,
"do": "assert",
"checks": [
{ "pos": [-1, 3, 0], "is": {"id": "minecraft:air"} },
{ "pos": [ 1, 3, 0], "is": {"id": "minecraft:air"} }
]
},
{
"at": 20,
"do": "assert",
"checks": [
{ "pos": [-1, 1, 0], "is": {"id": "minecraft:sand" } },
{ "pos": [ 1, 1, 0], "is": {"id": "minecraft:gravel"} }
]
}
],
"breakpoints": []
}

35 changes: 35 additions & 0 deletions tests/blocks/falling/water_below_stationary_concrete_powder_does_not_harden.json
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{
"$schema": "https://raw.githubusercontent.com/FlintTestMC/flint-core/refs/heads/main/flint-content/test_spec_schema.json",
"flintVersion": "1.0.0",
"name": "water_below_stationary_concrete_powder_does_not_harden",
"description": "Yellow concrete powder supported by a waterlogged top slab remains powder because Vanilla excludes water only below from stationary hardening checks.",
"tags": ["blocks", "falling-block", "concrete-powder", "water", "hardening", "edge-case"],
"minecraftIds": ["minecraft:yellow_concrete_powder"],
"dependencies": [],
"setup": {
"cleanup": {
"region": [ [0, 0, 0], [0, 2, 0] ]
}
},
"timeline": [
{
"at": 0,
"do": "place_each",
"blocks": [
{ "pos": [0, 0, 0], "block": {"id": "minecraft:stone"} },
{ "pos": [0, 1, 0], "block": {"id": "minecraft:oak_slab", "type": "top", "waterlogged": true} },
{ "pos": [0, 2, 0], "block": {"id": "minecraft:yellow_concrete_powder"} }
]
},
{
"at": 3,
"do": "assert",
"checks": [
{ "pos": [0, 1, 0], "is": {"id": "minecraft:oak_slab", "type": "top", "waterlogged": true} },
{ "pos": [0, 2, 0], "is": {"id": "minecraft:yellow_concrete_powder"} }
]
}
],
"breakpoints": []
}