baseTestCases := []TestSuiteCommon{
		// Init and run test on ErasureSD backend with signature v4.
		{serverType: "ErasureSD", signer: signerV4},
		// Init and run test on ErasureSD backend, with tls enabled.
		{serverType: "ErasureSD", signer: signerV4, secure: true},
		// Init and run test on Erasure backend.
		{serverType: "Erasure", signer: signerV4},
		// Init and run test on ErasureSet backend.

	atTotal := uint64(0)
	for _, pool := range serverPools {
		atTotal += pool.Available
		if atTotal > choose && pool.Available > 0 {
			return pool.Index
		}
	}
	// Should not happen, but print values just in case.
	storageLogIf(ctx, fmt.Errorf("reached end of serverPools (total: %v, atTotal: %v, choose: %v)", total, atTotal, choose))
	return -1
}

		}
	}
}

func (sys *IAMSys) validateAndAddRolePolicyMappings(ctx context.Context, m map[arn.ARN]string) {
	// Validate that policies associated with roles are defined. If
	// authZ plugin is set, role policies are just claims sent to
	// the plugin and they need not exist.
	//
	// If some mapped policies do not exist, we print some error
	// messages but continue any way - they can be fixed in the

				offlineDrives++
				continue
			}
		}

		if offlineDrives >= (len(storageDisks)+1)/2 {
			// if offline drives are more than 50% of the drives
			// we have no quorum, we shouldn't proceed just
			// fail at that point.
			return ObjectInfo{}, toObjectErr(errErasureWriteQuorum, bucket, object)
		}

		if parityDrives >= len(storageDisks)/2 {
			parityDrives = len(storageDisks) / 2
		}

				}
			}
		case *googleapi.Error:
			apiErr = APIError{
				Code:           "XGCSInternalError",
				Description:    e.Message,
				HTTPStatusCode: e.Code,
			}
			// GCS may send multiple errors, just pick the first one
			// since S3 only sends one Error XML response.
			if len(e.Errors) >= 1 {
				apiErr.Code = e.Errors[0].Reason
			}
		case azblob.StorageError:
			apiErr = APIError{

	apiRouter http.Handler, credentials auth.Credentials, t *testing.T)

// Regular object test type.
type objTestType func(obj ObjectLayer, instanceType string, t TestErrHandler)

// Special test type for test with directories
type objTestTypeWithDirs func(obj ObjectLayer, instanceType string, dirs []string, t TestErrHandler)

// Special object test type for disk not found situations.

			wantResult: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}`,
			withJSON: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}
{"request":{"uri":"/2","header":{}}}`,
		},
		{
			name:       "is-not-missing",
			query:      `select * from s3object[*] as s where s.request.header['User-Agent'] is not missing`,
			wantResult: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}`,

		result ListObjectsInfo
		err    error
		// Flag indicating whether the test is expected to pass or not.
		shouldPass bool
	}{
		// Test cases with invalid bucket names ( Test number 1-4 ).
		{".test", "", "", "", 0, ListObjectsInfo{}, BucketNameInvalid{Bucket: ".test"}, false},
		{"Test", "", "", "", 0, ListObjectsInfo{}, BucketNameInvalid{Bucket: "Test"}, false},

		expectedErr    error
		// Flag indicating whether the test is expected to pass or not.
		shouldPass bool
	}{
		// Test cases with invalid bucket names ( Test number 1-4 ).
		{".test", "", "", "", "", 0, ListMultipartsInfo{}, BucketNameInvalid{Bucket: ".test"}, false},
		{"Test", "", "", "", "", 0, ListMultipartsInfo{}, BucketNameInvalid{Bucket: "Test"}, false},

	json := jsoniter.ConfigCompatibleWithStandardLibrary
	var doc PolicyDoc
	err := json.Unmarshal(data, &doc)
	if err != nil {
		err2 := json.Unmarshal(data, &doc.Policy)
		if err2 != nil {
			// Just return the first error.
			return err
		}
		d.Policy = doc.Policy
		return nil
	}
	*d = doc
	return nil
}

// key options
type options struct {
	ttl int64 // expiry in seconds
}