Source File
	cmd.go

Belonging Package
	src.elv.sh/pkg/store/storetest

package storetest

import (
	"testing"

	"src.elv.sh/pkg/store"
)

var (
	cmds     = []string{"echo foo", "put bar", "put lorem", "echo bar"}
	searches = []struct {
		next      bool
		seq       int
		prefix    string
		wantedSeq int
		wantedCmd string
		wantedErr error
	}{
		{false, 5, "echo", 4, "echo bar", nil},
		{false, 5, "put", 3, "put lorem", nil},
		{false, 4, "echo", 1, "echo foo", nil},
		{false, 3, "f", 0, "", store.ErrNoMatchingCmd},
		{false, 1, "", 0, "", store.ErrNoMatchingCmd},

		{true, 1, "echo", 1, "echo foo", nil},
		{true, 1, "put", 2, "put bar", nil},
		{true, 2, "echo", 4, "echo bar", nil},
		{true, 4, "put", 0, "", store.ErrNoMatchingCmd},
	}
)

// TestCmd tests the command history functionality of a Store.
func TestCmd(t *testing.T, tStore store.Store) {
	startSeq, err := tStore.NextCmdSeq()
	if startSeq != 1 || err != nil {
		t.Errorf("tStore.NextCmdSeq() => (%v, %v), want (1, nil)",
			startSeq, err)
	}
	for i, cmd := range cmds {
		wantSeq := startSeq + i
		seq, err := tStore.AddCmd(cmd)
		if seq != wantSeq || err != nil {
			t.Errorf("tStore.AddCmd(%v) => (%v, %v), want (%v, nil)",
				cmd, seq, err, wantSeq)
		}
	}
	endSeq, err := tStore.NextCmdSeq()
	wantedEndSeq := startSeq + len(cmds)
	if endSeq != wantedEndSeq || err != nil {
		t.Errorf("tStore.NextCmdSeq() => (%v, %v), want (%v, nil)",
			endSeq, err, wantedEndSeq)
	}
	for i, wantedCmd := range cmds {
		seq := i + startSeq
		cmd, err := tStore.Cmd(seq)
		if cmd != wantedCmd || err != nil {
			t.Errorf("tStore.Cmd(%v) => (%v, %v), want (%v, nil)",
				seq, cmd, err, wantedCmd)
		}
	}
	for _, tt := range searches {
		f := tStore.PrevCmd
		funcname := "tStore.PrevCmd"
		if tt.next {
			f = tStore.NextCmd
			funcname = "tStore.NextCmd"
		}
		cmd, err := f(tt.seq, tt.prefix)
		wantedCmd := store.Cmd{Text: tt.wantedCmd, Seq: tt.wantedSeq}
		if cmd != wantedCmd || !matchErr(err, tt.wantedErr) {
			t.Errorf("%s(%v, %v) => (%v, %v), want (%v, %v)",
				funcname, tt.seq, tt.prefix, cmd, err, wantedCmd, tt.wantedErr)
		}
	}

	if err := tStore.DelCmd(1); err != nil {
		t.Error("Failed to remove cmd")
	}
	if seq, err := tStore.Cmd(1); !matchErr(err, store.ErrNoMatchingCmd) {
		t.Errorf("Cmd(1) => (%v, %v), want (%v, %v)",
			seq, err, "", store.ErrNoMatchingCmd)
	}
}

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