Add naive get rows function

expecter.go

@@ -12,14 +12,37 @@ type Recorder struct {
 	stmt string
 }
 
+type Stmt struct {
+	stmtType string
+	sql      string
+	args     []interface{}
+}
+
+func getStmtFromLog(values ...interface{}) Stmt {
+	var statement Stmt
+
+	if len(values) > 1 {
+		var (
+			level = values[0]
+		)
+
+		if level == "sql" {
+			statement.args = values[4].([]interface{})
+			statement.sql = values[3].(string)
+		}
+
+		return statement
+	}
+
+	return statement
+}
+
 // Print just sets the last recorded SQL statement
 // TODO: find a better way to extract SQL from log messages
 func (r *Recorder) Print(args ...interface{}) {
-	msgs := LogFormatter(args...)
-	if len(msgs) >= 4 {
-		if v, ok := msgs[3].(string); ok {
-			r.stmt = v
-		}
+	statement := getStmtFromLog(args...)
+	if statement.sql != "" {
+		r.stmt = statement.sql
 	}
 }
 

expecter_result.go

@@ -16,12 +16,40 @@ type ExpectedExec interface {
 
 // SqlmockQuery implements Query for asserter go-sqlmock
 type SqlmockQuery struct {
+	scope *Scope
 	query *sqlmock.ExpectedQuery
 }
 
 func (q *SqlmockQuery) getRowsForOutType(out interface{}) *sqlmock.Rows {
-	rows := sqlmock.NewRows([]string{"column1", "column2", "column3"})
-	rows = rows.AddRow("someval1", "someval2", "someval3")
+	var (
+		columns []string
+		rows    *sqlmock.Rows
+		values  []driver.Value
+	)
+
+	q.scope = &Scope{Value: out}
+	fields := q.scope.Fields()
+
+	for _, field := range fields {
+		if field.IsNormal {
+			var (
+				column = field.StructField.DBName
+				value  = field.Field.Interface()
+			)
+
+			if isValue := driver.IsValue(value); isValue {
+				columns = append(columns, column)
+				values = append(values, value)
+			} else if valuer, ok := value.(driver.Valuer); ok {
+				if underlyingValue, err := valuer.Value(); err == nil {
+					values = append(values, underlyingValue)
+					columns = append(columns, field.StructField.DBName)
+				}
+			}
+		}
+	}
+
+	rows = sqlmock.NewRows(columns).AddRow(values...)
 
 	return rows
 }
@@ -34,6 +62,7 @@ func (q *SqlmockQuery) Returns(out interface{}) ExpectedQuery {
 }
 
 type SqlmockExec struct {
+	scope *Scope
 	exec  *sqlmock.ExpectedExec
 }
 

expecter_test.go

@@ -1,6 +1,7 @@
 package gorm_test
 
 import (
+	"reflect"
 	"testing"
 
 	"github.com/jinzhu/gorm"
@@ -39,9 +40,39 @@ func TestQuery(t *testing.T) {
 	}
 
 	expect.First(&User{})
-	db.First(&User{})
+	db.LogMode(true).First(&User{})
 
 	if err := expect.AssertExpectations(); err != nil {
 		t.Error(err)
 	}
 }
+
+func TestQueryReturn(t *testing.T) {
+	db, expect, err := gorm.NewDefaultExpecter()
+	defer func() {
+		db.Close()
+	}()
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	in := &User{Id: 1}
+	expectedOut := User{Id: 1, Name: "jinzhu"}
+
+	expect.First(in).Returns(User{Id: 1, Name: "jinzhu"})
+
+	db.First(in)
+
+	if e := expect.AssertExpectations(); e != nil {
+		t.Error(e)
+	}
+
+	if in.Name != "jinzhu" {
+		t.Errorf("Expected %s, got %s", expectedOut.Name, in.Name)
+	}
+
+	if ne := reflect.DeepEqual(*in, expectedOut); !ne {
+		t.Errorf("Not equal")
+	}
+}