🌱 Unit Tests for checker/client (#2851)

- Included the unit tests for checker/client.go
- Coverage to 87%

Signed-off-by: naveensrinivasan <[email protected]>
Signed-off-by: Avishay <[email protected]>

checker/client_test.go

@@ -0,0 +1,126 @@
+// Copyright 2023 OpenSSF 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 checker
+
+import (
+	"context"
+	"testing"
+
+	"github.com/ossf/scorecard/v4/log"
+)
+
+// nolint:paralleltest
+// because we are using t.Setenv.
+func TestGetClients(t *testing.T) { //nolint:gocognit
+	type args struct { //nolint:govet
+		ctx      context.Context
+		repoURI  string
+		localURI string
+		logger   *log.Logger
+	}
+	tests := []struct { //nolint:govet
+		name                  string
+		args                  args
+		shouldOSSFuzzBeNil    bool
+		shouldRepoClientBeNil bool
+		shouldVulnClientBeNil bool
+		shouldRepoBeNil       bool
+		shouldCIIBeNil        bool
+		wantErr               bool
+		experimental          bool
+	}{
+		{
+			name: "localURI is not empty",
+			args: args{
+				ctx:      context.Background(),
+				repoURI:  "",
+				localURI: "foo",
+			},
+			shouldOSSFuzzBeNil:    false,
+			shouldRepoClientBeNil: false,
+			shouldVulnClientBeNil: false,
+			shouldRepoBeNil:       true,
+			wantErr:               true,
+		},
+		{
+			name: "repoURI is not empty",
+			args: args{
+				ctx:      context.Background(),
+				repoURI:  "foo",
+				localURI: "",
+			},
+			shouldOSSFuzzBeNil:    false,
+			shouldRepoClientBeNil: false,
+			shouldVulnClientBeNil: false,
+			shouldRepoBeNil:       true,
+			wantErr:               true,
+		},
+		{
+			name: "repoURI is gitlab which is not supported",
+			args: args{
+				ctx:      context.Background(),
+				repoURI:  "https://gitlab.com/ossf/scorecard",
+				localURI: "",
+			},
+			shouldOSSFuzzBeNil:    false,
+			shouldRepoClientBeNil: false,
+			shouldVulnClientBeNil: false,
+			shouldRepoBeNil:       true,
+			wantErr:               true,
+		},
+		{
+			name: "repoURI is gitlab and experimental is true",
+			args: args{
+				ctx:      context.Background(),
+				repoURI:  "https://gitlab.com/ossf/scorecard",
+				localURI: "",
+			},
+			shouldOSSFuzzBeNil:    false,
+			shouldRepoBeNil:       false,
+			shouldRepoClientBeNil: false,
+			shouldVulnClientBeNil: false,
+			shouldCIIBeNil:        false,
+			wantErr:               false,
+			experimental:          true,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.experimental {
+				t.Setenv("SCORECARD_EXPERIMENTAL", "true")
+			}
+			got, repoClient, ossFuzzClient, ciiClient, vulnsClient, err := GetClients(tt.args.ctx, tt.args.repoURI, tt.args.localURI, tt.args.logger) //nolint:lll
+			if (err != nil) != tt.wantErr {
+				t.Fatalf("GetClients() error = %v, wantErr %v", err, tt.wantErr)
+			}
+			if tt.shouldRepoBeNil != (got == nil) {
+				t.Errorf("GetClients() got = %v", got)
+			}
+			if repoClient != nil && tt.shouldRepoClientBeNil {
+				t.Errorf("GetClients() repoClient = %v ", repoClient)
+			}
+			if ossFuzzClient != nil && tt.shouldOSSFuzzBeNil {
+				t.Errorf("GetClients() ossFuzzClient = %v ", ossFuzzClient)
+			}
+			if ciiClient != nil && tt.shouldCIIBeNil {
+				t.Errorf("GetClients() ciiClient = %v", ciiClient)
+			}
+			if vulnsClient != nil && tt.shouldVulnClientBeNil {
+				t.Errorf("GetClients() vulnsClient = %v", vulnsClient)
+			}
+		})
+	}
+}