Files
genai-toolbox/internal/sources/bigtable/bigtable_test.go
Kurtis Van Gent 1c9ad5ea24 refactor: implement dynamic source registration (#614)
This commit refactors the source configuration and loading mechanism to
use a dynamic registration pattern. Each source package now registers
itself with a central registry via its init() function.

The server configuration code uses this registry to decode and
initialize sources, decoupling it from specific source implementations
and simplifying the addition of new sources.

Key changes:
- Introduced `sources.Register()` and `newConfig()` constructor in each
source package.
- Moved source package imports to `cmd/root.go` as blank imports to
trigger `init()` functions for self-registration.
- Removed direct imports of specific source packages from
`internal/server/config.go`.
- Renamed `SourceKind` constants to `Kind` within each source package.
- Updated tests to use the new `Kind` constants and reflect registration
changes.

---------

Co-authored-by: Yuan Teoh <yuanteoh@google.com>
2025-06-04 14:23:57 -07:00

117 lines
3.0 KiB
Go

// Copyright 2025 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package bigtable_test
import (
"testing"
yaml "github.com/goccy/go-yaml"
"github.com/google/go-cmp/cmp"
"github.com/googleapis/genai-toolbox/internal/server"
"github.com/googleapis/genai-toolbox/internal/sources"
"github.com/googleapis/genai-toolbox/internal/sources/bigtable"
"github.com/googleapis/genai-toolbox/internal/testutils"
)
func TestParseFromYamlBigtableDb(t *testing.T) {
tcs := []struct {
desc string
in string
want server.SourceConfigs
}{
{
desc: "can configure with a bigtable table",
in: `
sources:
my-bigtable-instance:
kind: bigtable
project: my-project
instance: my-instance
`,
want: map[string]sources.SourceConfig{
"my-bigtable-instance": bigtable.Config{
Name: "my-bigtable-instance",
Kind: bigtable.SourceKind,
Project: "my-project",
Instance: "my-instance",
},
},
},
}
for _, tc := range tcs {
t.Run(tc.desc, func(t *testing.T) {
got := struct {
Sources server.SourceConfigs `yaml:"sources"`
}{}
// Parse contents
err := yaml.Unmarshal(testutils.FormatYaml(tc.in), &got)
if err != nil {
t.Fatalf("unable to unmarshal: %s", err)
}
if !cmp.Equal(tc.want, got.Sources) {
t.Fatalf("incorrect parse: want %v, got %v", tc.want, got.Sources)
}
})
}
}
func TestFailParseFromYaml(t *testing.T) {
tcs := []struct {
desc string
in string
err string
}{
{
desc: "extra field",
in: `
sources:
my-bigtable-instance:
kind: bigtable
project: my-project
instance: my-instance
foo: bar
`,
err: "unable to parse source \"my-bigtable-instance\" as \"bigtable\": [1:1] unknown field \"foo\"\n> 1 | foo: bar\n ^\n 2 | instance: my-instance\n 3 | kind: bigtable\n 4 | project: my-project",
},
{
desc: "missing required field",
in: `
sources:
my-bigtable-instance:
kind: bigtable
project: my-project
`,
err: "unable to parse source \"my-bigtable-instance\" as \"bigtable\": Key: 'Config.Instance' Error:Field validation for 'Instance' failed on the 'required' tag",
},
}
for _, tc := range tcs {
t.Run(tc.desc, func(t *testing.T) {
got := struct {
Sources server.SourceConfigs `yaml:"sources"`
}{}
// Parse contents
err := yaml.Unmarshal(testutils.FormatYaml(tc.in), &got)
if err == nil {
t.Fatalf("expect parsing to fail")
}
errStr := err.Error()
if errStr != tc.err {
t.Fatalf("unexpected error: got %q, want %q", errStr, tc.err)
}
})
}
}