removed repetitve code and added test matrix

fixed typo

Update manualtoken_test.go

updated tests

Create manualtoken_test.go

pkg/token/manualtoken_test.go

@@ -0,0 +1,95 @@
+package token
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/Azure/go-autorest/autorest/adal"
+)
+
+func TestNewManualToken(t *testing.T) {
+	testCases := []struct {
+		name       string
+		oAuthCfg   adal.OAuthConfig
+		clientID   string
+		resourceID string
+		tenantID   string
+		token      *adal.Token
+		wantErr    error
+	}{
+		{
+			name:       "Valid input",
+			oAuthCfg:   adal.OAuthConfig{},
+			clientID:   "clientID",
+			resourceID: "resourceID",
+			tenantID:   "tenantID",
+			token:      &adal.Token{},
+			wantErr:    nil,
+		},
+		{
+			name:       "Nil token",
+			oAuthCfg:   adal.OAuthConfig{},
+			clientID:   "clientID",
+			resourceID: "resourceID",
+			tenantID:   "tenantID",
+			token:      nil,
+			wantErr:    errors.New("token cannot be nil"),
+		},
+		{
+			name:       "Empty clientID",
+			oAuthCfg:   adal.OAuthConfig{},
+			clientID:   "",
+			resourceID: "resourceID",
+			tenantID:   "tenantID",
+			token:      &adal.Token{},
+			wantErr:    errors.New("clientID cannot be empty"),
+		},
+		{
+			name:       "Empty resourceID",
+			oAuthCfg:   adal.OAuthConfig{},
+			clientID:   "clientID",
+			resourceID: "",
+			tenantID:   "tenantID",
+			token:      &adal.Token{},
+			wantErr:    errors.New("resourceID cannot be empty"),
+		},
+		{
+			name:       "Empty tenantID",
+			oAuthCfg:   adal.OAuthConfig{},
+			clientID:   "clientID",
+			resourceID: "resourceID",
+			tenantID:   "",
+			token:      &adal.Token{},
+			wantErr:    errors.New("tenantID cannot be empty"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			_, err := newManualToken(tc.oAuthCfg, tc.clientID, tc.resourceID, tc.tenantID, tc.token)
+			if err != nil && err.Error() != tc.wantErr.Error() {
+				t.Errorf("expected error %v, but got %v", tc.wantErr, err)
+			}
+			if err == nil && tc.wantErr != nil {
+				t.Errorf("expected err: %v, got nil", tc.wantErr)
+			}
+		})
+	}
+}
+
+func TestManualTokenToken(t *testing.T) {
+	oAuthConfig := adal.OAuthConfig{}
+	clientID := "test-client-id"
+	resourceID := "test-resource-id"
+	tenantID := "test-tenant-id"
+	token := &adal.Token{AccessToken: "test-access-token"}
+
+	provider, _ := newManualToken(oAuthConfig, clientID, resourceID, tenantID, token)
+
+	// Test successful token refresh
+	if _, err := provider.Token(); err == nil {
+		if err == nil {
+			t.Errorf("Expected no error, but got %v", err)
+		}
+	}
+}