diff --git a/handler/review.go b/handler/review.go
index 2cbc47b..9275f76 100644
--- a/handler/review.go
+++ b/handler/review.go
@@ -6,6 +6,7 @@ import (
 	"github.com/gin-gonic/gin"
 
 	"jcourse_go/middleware"
+	"jcourse_go/model/converter"
 	"jcourse_go/model/dto"
 	"jcourse_go/model/model"
 	"jcourse_go/service"
@@ -52,6 +53,8 @@ func GetReviewListHandler(c *gin.Context) {
 		return
 	}
 
+	converter.RemoveReviewsUserInfo(reviews, true)
+
 	response := dto.ReviewListResponse{
 		Page:     request.Page,
 		PageSize: request.PageSize,
diff --git a/model/converter/course.go b/model/converter/course.go
index 73fcf55..106850e 100644
--- a/model/converter/course.go
+++ b/model/converter/course.go
@@ -70,8 +70,8 @@ func ConvertOfferedCourseFromPO(po po.OfferedCoursePO) model.OfferedCourse {
 
 func ConvertOfferedCoursesFromPOs(pos []po.OfferedCoursePO) []model.OfferedCourse {
 	res := make([]model.OfferedCourse, 0, len(pos))
-	for _, po := range pos {
-		res = append(res, ConvertOfferedCourseFromPO(po))
+	for _, p := range pos {
+		res = append(res, ConvertOfferedCourseFromPO(p))
 	}
 	return res
 }
diff --git a/model/converter/review.go b/model/converter/review.go
index 36f6f24..50b1ebc 100644
--- a/model/converter/review.go
+++ b/model/converter/review.go
@@ -24,6 +24,21 @@ func ConvertReviewFromPO(po po.ReviewPO) model.Review {
 	}
 }
 
+func RemoveReviewUserInfo(review *model.Review, hideUser bool) {
+	if review == nil {
+		return
+	}
+	if hideUser && review.IsAnonymous {
+		review.User = model.UserMinimal{}
+	}
+}
+
+func RemoveReviewsUserInfo(reviews []model.Review, hideUser bool) {
+	for i := range reviews {
+		RemoveReviewUserInfo(&reviews[i], hideUser)
+	}
+}
+
 func PackReviewWithCourse(review *model.Review, course model.CourseMinimal) {
 	review.Course = course
 }
diff --git a/model/converter/review_test.go b/model/converter/review_test.go
new file mode 100644
index 0000000..e29033c
--- /dev/null
+++ b/model/converter/review_test.go
@@ -0,0 +1,43 @@
+package converter
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"jcourse_go/model/model"
+)
+
+func TestRemoveReviewUserInfo(t *testing.T) {
+	hides := []bool{true, false, true, false}
+	expected := []int64{0, 1, 1, 1}
+	user := model.UserMinimal{ID: 1}
+	reviews := []model.Review{{
+		User:        user,
+		IsAnonymous: true,
+	}, {
+		User:        user,
+		IsAnonymous: true,
+	}, {
+		User:        user,
+		IsAnonymous: false,
+	}, {
+		User:        user,
+		IsAnonymous: false,
+	}}
+	for i := range reviews {
+		r := reviews[i]
+		hide := hides[i]
+		RemoveReviewUserInfo(&r, hide)
+		assert.Equal(t, expected[i], r.User.ID)
+	}
+}
+
+func TestRemoveReviewsUserInfo(t *testing.T) {
+	reviews := []model.Review{{
+		User:        model.UserMinimal{ID: 1},
+		IsAnonymous: true,
+	}}
+	RemoveReviewsUserInfo(reviews, true)
+	assert.Equal(t, int64(0), reviews[0].User.ID)
+}
diff --git a/model/model/rating_test.go b/model/model/rating_test.go
new file mode 100644
index 0000000..35b291c
--- /dev/null
+++ b/model/model/rating_test.go
@@ -0,0 +1,20 @@
+package model
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRatingInfo_Calc(t *testing.T) {
+	rating := &RatingInfo{
+		RatingDist: []RatingInfoDistItem{
+			{Count: 1, Rating: 1},
+			{Count: 2, Rating: 2},
+			{Count: 5, Rating: 5},
+		},
+	}
+	rating.Calc()
+	assert.Equal(t, int64(8), rating.Count)
+	assert.Equal(t, 3.75, rating.Average)
+}
diff --git a/util/conv_test.go b/util/conv_test.go
new file mode 100644
index 0000000..597b88c
--- /dev/null
+++ b/util/conv_test.go
@@ -0,0 +1,16 @@
+package util
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestStringsToFloat64s(t *testing.T) {
+	src := []string{"1", "2", "3", "4", "5"}
+	dst := StringsToFloat64s(src)
+	assert.Equal(t, len(src), len(dst))
+	for i := range src {
+		assert.Equal(t, float64(i+1), dst[i])
+	}
+}