28 lines
1.0 KiB
GDScript
28 lines
1.0 KiB
GDScript
extends SceneTree
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## Proves tests/test_helpers.gd behaves before the rest of the suite leans on it: seeded RNGs are
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## reproducible, the approx comparisons accept tiny error and reject real gaps, and the tally maps
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## onto the exit code. It dogfoods the tally it is testing.
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## Run: godot --headless --script tests/harness_selftest.gd
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const TH := preload("res://tests/test_helpers.gd")
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func _init() -> void:
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_run.call_deferred()
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func _run() -> void:
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var t := TH.new()
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var same_a := TH.make_rng(42)
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var same_b := TH.make_rng(42)
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t.ok(same_a.randf() == same_b.randf(), "same seed yields the same draw")
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t.ok(TH.make_rng(42).randi() != TH.make_rng(7).randi(), "different seeds diverge")
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t.ok(TH.approx(0.1 + 0.2, 0.3), "approx tolerates float rounding error")
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t.ok(not TH.approx(1.0, 1.5, 0.1), "approx rejects a real gap")
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t.ok(TH.vec_approx(Vector3(1, 2, 3), Vector3(1, 2, 3.00001)), "vec_approx tolerates a tiny offset")
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t.ok(not TH.vec_approx(Vector3.ZERO, Vector3(0, 0, 1)), "vec_approx rejects a real offset")
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quit(t.report())
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