diff --git a/checks/raw/code_review_test.go b/checks/raw/code_review_test.go
new file mode 100644
index 00000000000..26705f14194
--- /dev/null
+++ b/checks/raw/code_review_test.go
@@ -0,0 +1,279 @@
+// Copyright 2022 Security Scorecard Authors
+//
+// 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 raw
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/golang/mock/gomock"
+	"github.com/google/go-cmp/cmp"
+
+	"github.com/ossf/scorecard/v4/checker"
+	"github.com/ossf/scorecard/v4/clients"
+	mockrepo "github.com/ossf/scorecard/v4/clients/mockclients"
+)
+
+// Test_reviews tests the reviews function.
+func Test_reviews(t *testing.T) {
+	t.Parallel()
+	type args struct {
+		mr *clients.PullRequest
+	}
+	tests := []struct {
+		name string
+		args args
+		want []checker.Review
+	}{
+		{
+			name: "Test_reviews",
+			args: args{
+				mr: &clients.PullRequest{
+					Reviews: []clients.Review{},
+				},
+			},
+			want: []checker.Review{},
+		},
+		{
+			name: "Test_reviews",
+			args: args{
+				mr: &clients.PullRequest{
+					Reviews: []clients.Review{
+						{
+							State: "APPROVED",
+							Author: &clients.User{
+								Login: "user",
+							},
+						},
+						{
+							State: "APPROVED",
+							Author: &clients.User{
+								Login: "user",
+							},
+						},
+					},
+				},
+			},
+			want: []checker.Review{
+				{
+					Reviewer: checker.User{
+						Login: "user",
+					},
+					State: "APPROVED",
+				},
+				{
+					Reviewer: checker.User{
+						Login: "user",
+					},
+					State: "APPROVED",
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			if got := reviews(tt.args.mr); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("reviews() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+// Test_labels tests the labels function.
+func Test_labels(t *testing.T) {
+	t.Parallel()
+	type args struct {
+		mr *clients.PullRequest
+	}
+	tests := []struct {
+		name string
+		args args
+		want []string
+	}{
+		{
+			name: "Test_labels",
+			args: args{
+				mr: &clients.PullRequest{
+					Labels: []clients.Label{},
+				},
+			},
+			want: []string{},
+		},
+		{
+			name: "Test_labels",
+			args: args{
+				mr: &clients.PullRequest{
+					Labels: []clients.Label{
+						{
+							Name: "label",
+						},
+						{
+							Name: "label",
+						},
+					},
+				},
+			},
+			want: []string{"label", "label"},
+		},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			if got := labels(tt.args.mr); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("labels() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+// Test_mergeRequest tests the mergeRequest function.
+func Test_mergeRequest(t *testing.T) {
+	t.Parallel()
+	type args struct {
+		mr *clients.PullRequest
+	}
+	//nolint
+	tests := []struct {
+		name string
+		args args
+		want *checker.MergeRequest
+	}{
+		{
+			name: "Test_mergeRequest",
+			args: args{
+				mr: &clients.PullRequest{
+					MergedAt: time.Time{},
+					HeadSHA:  "sha",
+					Labels: []clients.Label{
+						{
+							Name: "label",
+						},
+						{
+							Name: "label",
+						},
+					},
+				},
+			},
+			want: &checker.MergeRequest{
+				MergedAt: time.Time{},
+				Labels:   []string{"label", "label"},
+				Author:   checker.User{},
+				Reviews:  []checker.Review{},
+			},
+		},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			if got := mergeRequest(tt.args.mr); !cmp.Equal(got, tt.want) {
+				t.Errorf("mergeRequest() = %+v, want %+v", got, tt.want)
+			}
+		})
+	}
+}
+
+// Test_getRawDataFrom tests the getRawDataFrom function.
+func Test_getRawDataFrom(t *testing.T) {
+	t.Parallel()
+	type args struct {
+		c *clients.Commit
+	}
+	tests := []struct {
+		name string
+		args args
+		want checker.DefaultBranchCommit
+	}{
+		{
+			name: "Test_getRawDataFrom",
+			args: args{
+				c: &clients.Commit{
+					CommittedDate: time.Time{},
+					Message:       "message",
+					SHA:           "sha",
+				},
+			},
+			want: checker.DefaultBranchCommit{
+				SHA:           "sha",
+				CommitMessage: "message",
+				MergeRequest: &checker.MergeRequest{
+					Labels:  []string{},
+					Reviews: []checker.Review{},
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			if got := getRawDataFrom(tt.args.c); !cmp.Equal(got, tt.want) {
+				t.Errorf(cmp.Diff(got, tt.want))
+			}
+		})
+	}
+}
+
+// TestCodeReviews tests the CodeReviews function.
+func TestCodeReview(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		name    string
+		want    checker.CodeReviewData
+		wantErr bool
+	}{
+		{
+			name:    "Test_CodeReview",
+			wantErr: false,
+		},
+		{
+			name:    "Want error",
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			ctrl := gomock.NewController(t)
+			mr := mockrepo.NewMockRepoClient(ctrl)
+			mr.EXPECT().ListCommits().DoAndReturn(func() ([]*clients.Commit, error) {
+				if tt.wantErr {
+					//nolint
+					return nil, errors.New("error")
+				}
+				return []*clients.Commit{
+					{
+						SHA: "sha",
+					},
+				}, nil
+			})
+			result, err := CodeReview(mr)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("CodeReview() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			} else if !tt.wantErr && cmp.Equal(result, tt.want) {
+				t.Errorf(cmp.Diff(result, tt.want))
+			}
+		})
+	}
+}