output_state_test.go RawHistoryFolder

1package client
2
3import (
4	"testing"
5
6	"github.com/bnema/vev/internal/domain"
7	"github.com/bnema/vev/internal/ports"
8)
9
10func TestOutputApplyStateTransitions(t *testing.T) {
11	full := ports.Output{Epoch: 1, Base: 0, New: 1, Full: true, ViewRevision: 2, Size: domain.Size{Cols: 80, Rows: 24}}
12	tests := []struct {
13		name     string
14		state    outputApplyState
15		output   ports.Output
16		accepted bool
17		want     outputApplyState
18	}{
19		{name: "first full", output: full, accepted: true, want: outputApplyState{epoch: 1, state: 1, viewRevision: 2, initialized: true}},
20		{name: "first gap", output: ports.Output{Epoch: 1, Base: 1, New: 2, ViewRevision: 2}, accepted: false},
21		{name: "increment", state: outputApplyState{epoch: 1, state: 1, viewRevision: 2, initialized: true}, output: ports.Output{Epoch: 1, Base: 1, New: 2, ViewRevision: 2}, accepted: true, want: outputApplyState{epoch: 1, state: 2, viewRevision: 2, initialized: true}},
22		{name: "base gap", state: outputApplyState{epoch: 1, state: 1, viewRevision: 2, initialized: true}, output: ports.Output{Epoch: 1, Base: 0, New: 2, Full: true, ViewRevision: 2}, accepted: false},
23		{name: "revision gap", state: outputApplyState{epoch: 1, state: 1, viewRevision: 2, initialized: true}, output: ports.Output{Epoch: 1, Base: 1, New: 2, ViewRevision: 3}, accepted: false},
24		{name: "new epoch reset", state: outputApplyState{epoch: 1, state: 1, viewRevision: 2, initialized: true}, output: ports.Output{Epoch: 2, Base: 0, New: 1, Full: true, ViewRevision: 3}, accepted: true, want: outputApplyState{epoch: 2, state: 1, viewRevision: 3, initialized: true}},
25	}
26	for _, tt := range tests {
27		t.Run(tt.name, func(t *testing.T) {
28			got, accepted := tt.state.next(tt.output)
29			if accepted != tt.accepted {
30				t.Fatalf("accepted = %v, want %v", accepted, tt.accepted)
31			}
32			if accepted && got != tt.want {
33				t.Fatalf("state = %+v, want %+v", got, tt.want)
34			}
35		})
36	}
37}