ea29e5ebb8
Pure-function Policy{Floor,Ceil} with Decide(*float64, uint64) Decision.
Rules in priority order: nil → local; ≥floor → local; <ceil → claude;
sample band → low bit of requestHash.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
package routing_test
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import (
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"testing"
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"github.com/mathiasbq/supervisor/internal/routing"
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"github.com/stretchr/testify/assert"
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)
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func ptr(f float64) *float64 { return &f }
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func TestPolicyDecide(t *testing.T) {
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p := routing.Policy{Floor: 0.9, Ceil: 0.7}
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cases := []struct {
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name string
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passRate *float64
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hash uint64
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want routing.Decision
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}{
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{"null pass rate → local", nil, 0, routing.DecideLocal},
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{"null pass rate, hash irrelevant → local", nil, 0xDEADBEEF, routing.DecideLocal},
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{"at floor → local", ptr(0.9), 0, routing.DecideLocal},
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{"above floor → local", ptr(0.95), 0, routing.DecideLocal},
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{"below ceil → claude", ptr(0.5), 0, routing.DecideClaude},
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{"at ceil → sample-band even-hash → local", ptr(0.7), 0, routing.DecideLocal},
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{"sample band, even hash → local", ptr(0.8), 2, routing.DecideLocal},
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{"sample band, odd hash → claude", ptr(0.8), 3, routing.DecideClaude},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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assert.Equal(t, tc.want, p.Decide(tc.passRate, tc.hash))
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})
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}
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}
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