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- // Copyright 2011 Google Inc.
- //
- // 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 gomock
-
- import (
- "bytes"
- "fmt"
- )
-
- // callSet represents a set of expected calls, indexed by receiver and method
- // name.
- type callSet struct {
- // Calls that are still expected.
- expected map[callSetKey][]*Call
- // Calls that have been exhausted.
- exhausted map[callSetKey][]*Call
- }
-
- // callSetKey is the key in the maps in callSet
- type callSetKey struct {
- receiver interface{}
- fname string
- }
-
- func newCallSet() *callSet {
- return &callSet{make(map[callSetKey][]*Call), make(map[callSetKey][]*Call)}
- }
-
- // Add adds a new expected call.
- func (cs callSet) Add(call *Call) {
- key := callSetKey{call.receiver, call.method}
- m := cs.expected
- if call.exhausted() {
- m = cs.exhausted
- }
- m[key] = append(m[key], call)
- }
-
- // Remove removes an expected call.
- func (cs callSet) Remove(call *Call) {
- key := callSetKey{call.receiver, call.method}
- calls := cs.expected[key]
- for i, c := range calls {
- if c == call {
- // maintain order for remaining calls
- cs.expected[key] = append(calls[:i], calls[i+1:]...)
- cs.exhausted[key] = append(cs.exhausted[key], call)
- break
- }
- }
- }
-
- // FindMatch searches for a matching call. Returns error with explanation message if no call matched.
- func (cs callSet) FindMatch(receiver interface{}, method string, args []interface{}) (*Call, error) {
- key := callSetKey{receiver, method}
-
- // Search through the expected calls.
- expected := cs.expected[key]
- var callsErrors bytes.Buffer
- for _, call := range expected {
- err := call.matches(args)
- if err != nil {
- fmt.Fprintf(&callsErrors, "\n%v", err)
- } else {
- return call, nil
- }
- }
-
- // If we haven't found a match then search through the exhausted calls so we
- // get useful error messages.
- exhausted := cs.exhausted[key]
- for _, call := range exhausted {
- if err := call.matches(args); err != nil {
- fmt.Fprintf(&callsErrors, "\n%v", err)
- }
- }
-
- if len(expected)+len(exhausted) == 0 {
- fmt.Fprintf(&callsErrors, "there are no expected calls of the method %q for that receiver", method)
- }
-
- return nil, fmt.Errorf(callsErrors.String())
- }
-
- // Failures returns the calls that are not satisfied.
- func (cs callSet) Failures() []*Call {
- failures := make([]*Call, 0, len(cs.expected))
- for _, calls := range cs.expected {
- for _, call := range calls {
- if !call.satisfied() {
- failures = append(failures, call)
- }
- }
- }
- return failures
- }
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