mirror of
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113 lines
3 KiB
Go
113 lines
3 KiB
Go
// Copyright 2011 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package gomock
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import (
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"bytes"
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"errors"
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"fmt"
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)
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// callSet represents a set of expected calls, indexed by receiver and method
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// name.
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type callSet struct {
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// Calls that are still expected.
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expected map[callSetKey][]*Call
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// Calls that have been exhausted.
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exhausted map[callSetKey][]*Call
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}
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// callSetKey is the key in the maps in callSet
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type callSetKey struct {
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receiver interface{}
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fname string
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}
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func newCallSet() *callSet {
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return &callSet{make(map[callSetKey][]*Call), make(map[callSetKey][]*Call)}
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}
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// Add adds a new expected call.
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func (cs callSet) Add(call *Call) {
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key := callSetKey{call.receiver, call.method}
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m := cs.expected
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if call.exhausted() {
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m = cs.exhausted
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}
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m[key] = append(m[key], call)
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}
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// Remove removes an expected call.
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func (cs callSet) Remove(call *Call) {
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key := callSetKey{call.receiver, call.method}
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calls := cs.expected[key]
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for i, c := range calls {
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if c == call {
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// maintain order for remaining calls
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cs.expected[key] = append(calls[:i], calls[i+1:]...)
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cs.exhausted[key] = append(cs.exhausted[key], call)
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break
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}
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}
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}
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// FindMatch searches for a matching call. Returns error with explanation message if no call matched.
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func (cs callSet) FindMatch(receiver interface{}, method string, args []interface{}) (*Call, error) {
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key := callSetKey{receiver, method}
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// Search through the expected calls.
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expected := cs.expected[key]
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var callsErrors bytes.Buffer
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for _, call := range expected {
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err := call.matches(args)
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if err != nil {
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_, _ = fmt.Fprintf(&callsErrors, "\n%v", err)
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} else {
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return call, nil
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}
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}
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// If we haven't found a match then search through the exhausted calls so we
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// get useful error messages.
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exhausted := cs.exhausted[key]
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for _, call := range exhausted {
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if err := call.matches(args); err != nil {
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_, _ = fmt.Fprintf(&callsErrors, "\n%v", err)
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continue
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}
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_, _ = fmt.Fprintf(
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&callsErrors, "all expected calls for method %q have been exhausted", method,
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)
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}
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if len(expected)+len(exhausted) == 0 {
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_, _ = fmt.Fprintf(&callsErrors, "there are no expected calls of the method %q for that receiver", method)
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}
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return nil, errors.New(callsErrors.String())
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}
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// Failures returns the calls that are not satisfied.
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func (cs callSet) Failures() []*Call {
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failures := make([]*Call, 0, len(cs.expected))
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for _, calls := range cs.expected {
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for _, call := range calls {
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if !call.satisfied() {
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failures = append(failures, call)
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}
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}
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}
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return failures
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}
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