Service box tests

Continuing with the error messages audit, this service came out the same
as the basis one - I haven't yet found any tests I can write that
expose errors we would want to enhance. In the meantime, more tests are
good though!

internal/server/singleprocess/service_box_test.go

@@ -0,0 +1,111 @@
+package singleprocess
+
+import (
+	"context"
+	"testing"
+
+	"github.com/hashicorp/vagrant-plugin-sdk/proto/vagrant_plugin_sdk"
+	"github.com/hashicorp/vagrant/internal/server"
+	"github.com/hashicorp/vagrant/internal/server/proto/vagrant_server"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func TestServiceBox(t *testing.T) {
+	ctx := context.Background()
+
+	t.Run("set and get", func(t *testing.T) {
+		require := require.New(t)
+		db := testDB(t)
+		impl, err := New(WithDB(db))
+		require.NoError(err)
+		client := server.TestServer(t, impl)
+
+		b := testBox()
+		resp, err := client.UpsertBox(ctx, &vagrant_server.UpsertBoxRequest{
+			Box: b,
+		})
+		require.NoError(err)
+		require.NotNil(resp)
+		require.Equal(b.Id, resp.Box.Id)
+
+		// should be able to get by ID
+		getResp, err := client.GetBox(ctx, &vagrant_server.GetBoxRequest{
+			Box: &vagrant_plugin_sdk.Ref_Box{ResourceId: b.Id},
+		})
+		require.NoError(err)
+		require.NotNil(getResp)
+		require.Equal(b.Provider, getResp.Box.Provider)
+		require.Equal(b.Name, getResp.Box.Name)
+		require.Equal(b.Version, getResp.Box.Version)
+
+	})
+
+	t.Run("find", func(t *testing.T) {
+		require := require.New(t)
+		db := testDB(t)
+		impl, err := New(WithDB(db))
+		require.NoError(err)
+		client := server.TestServer(t, impl)
+
+		// first insert
+		b := testBox()
+		_, err = client.UpsertBox(ctx, &vagrant_server.UpsertBoxRequest{
+			Box: b,
+		})
+		require.NoError(err)
+
+		// then find it
+		findResp, err := client.FindBox(ctx, &vagrant_server.FindBoxRequest{
+			Box: &vagrant_plugin_sdk.Ref_Box{Name: b.Name},
+		})
+		require.NoError(err)
+		require.NotNil(findResp)
+		require.Equal(b.Id, findResp.Box.Id)
+
+		// then delete it and ensure it's no longer found
+		_, err = client.DeleteBox(ctx, &vagrant_server.DeleteBoxRequest{
+			Box: &vagrant_plugin_sdk.Ref_Box{ResourceId: b.Id},
+		})
+		require.NoError(err)
+
+		refindResp, err := client.FindBox(ctx, &vagrant_server.FindBoxRequest{
+			Box: &vagrant_plugin_sdk.Ref_Box{Name: b.Name},
+		})
+		require.NoError(err)
+		require.NotNil(refindResp)
+	})
+
+	t.Run("reasonable errors: get not found", func(t *testing.T) {
+		require := require.New(t)
+		db := testDB(t)
+		impl, err := New(WithDB(db))
+		require.NoError(err)
+		client := server.TestServer(t, impl)
+
+		_, err = client.GetBox(ctx, &vagrant_server.GetBoxRequest{
+			Box: &vagrant_plugin_sdk.Ref_Box{ResourceId: "idontexist"},
+		})
+		require.Error(err)
+
+		// we expect this to be a GRPC error with a not found code and a decent
+		// message
+		st, ok := status.FromError(err)
+		require.Equal(ok, true)
+		require.Equal(st.Code(), codes.NotFound)
+		require.Contains(st.Message(), "not found")
+	})
+}
+
+// minimum box valid to save
+func testBox() *vagrant_server.Box {
+	return &vagrant_server.Box{
+		Provider: "virtualbox",
+		Name:     "test/box",
+		Version:  "1.2.3",
+		// Id must be Name-Provider-Version because indexing assumes it is
+		// (the NewBox constructor normally generates this in core/box)
+		Id: "test/box-1.2.3-virtualbox",
+	}
+}