gitquery: add integration tests skeleton

Signed-off-by: Miguel Molina <[email protected]>

Author: erizocosmico

integration_test.go

@@ -0,0 +1,49 @@
+package gitquery_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/src-d/gitquery"
+	"github.com/src-d/gitquery/internal/function"
+	"github.com/stretchr/testify/require"
+	fixtures "gopkg.in/src-d/go-git-fixtures.v3"
+	sqle "gopkg.in/src-d/go-mysql-server.v0"
+	"gopkg.in/src-d/go-mysql-server.v0/sql"
+)
+
+func TestIntegration(t *testing.T) {
+	engine := sqle.New()
+	require.NoError(t, fixtures.Init())
+	defer func() {
+		require.NoError(t, fixtures.Clean())
+	}()
+
+	path := fixtures.ByTag("worktree").One().Worktree().Root()
+	pool := gitquery.NewRepositoryPool()
+	_, err := pool.AddGit(path)
+	require.NoError(t, err)
+
+	engine.AddDatabase(gitquery.NewDatabase("foo", &pool))
+	function.Register(engine.Catalog)
+
+	testCases := []struct {
+		query  string
+		result [][]interface{}
+	}{
+	// TODO: add tests
+	// {"SELECT 1 FROM repositories", [][]interface{}{{int64(1)}}},
+	}
+
+	for _, tt := range testCases {
+		t.Run(tt.query, func(t *testing.T) {
+			require := require.New(t)
+			session := gitquery.NewSession(context.TODO(), &pool)
+			_, iter, err := engine.Query(session, tt.query)
+			require.NoError(err)
+			rows, err := sql.RowIterToRows(iter)
+			require.NoError(err)
+			require.Equal(tt.result, rows)
+		})
+	}
+}