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|
package test_helpers
import (
"fmt"
"strings"
"sync"
"github.com/onsi/ginkgo/v2/formatter"
"github.com/onsi/ginkgo/v2/internal"
. "github.com/onsi/gomega"
"github.com/onsi/gomega/types"
)
/*
RunTracker tracks invocations of functions - useful to assert orders in which nodes run
*/
type RunTracker struct {
lock *sync.Mutex
trackedRuns []string
trackedData map[string]map[string]interface{}
}
func NewRunTracker() *RunTracker {
return &RunTracker{
lock: &sync.Mutex{},
trackedData: map[string]map[string]interface{}{},
}
}
func (rt *RunTracker) Reset() {
rt.lock.Lock()
defer rt.lock.Unlock()
rt.trackedRuns = []string{}
}
func (rt *RunTracker) Run(text string) {
rt.lock.Lock()
defer rt.lock.Unlock()
rt.trackedRuns = append(rt.trackedRuns, text)
}
func (rt *RunTracker) RunWithData(text string, kv ...interface{}) {
rt.lock.Lock()
defer rt.lock.Unlock()
rt.trackedRuns = append(rt.trackedRuns, text)
data := map[string]interface{}{}
for i := 0; i < len(kv); i += 2 {
key := kv[i].(string)
value := kv[i+1]
data[key] = value
}
rt.trackedData[text] = data
}
func (rt *RunTracker) TrackedRuns() []string {
rt.lock.Lock()
defer rt.lock.Unlock()
trackedRuns := make([]string, len(rt.trackedRuns))
copy(trackedRuns, rt.trackedRuns)
return trackedRuns
}
func (rt *RunTracker) DataFor(text string) map[string]interface{} {
rt.lock.Lock()
defer rt.lock.Unlock()
return rt.trackedData[text]
}
func (rt *RunTracker) T(text string, callback ...func()) func() {
return func() {
rt.Run(text)
if len(callback) > 0 {
callback[0]()
}
}
}
func (rt *RunTracker) TSC(text string, callback ...func(internal.SpecContext)) func(internal.SpecContext) {
return func(c internal.SpecContext) {
rt.Run(text)
if len(callback) > 0 {
callback[0](c)
}
}
}
func (rt *RunTracker) C(text string, callback ...func()) func(args []string, additionalArgs []string) {
return func(args []string, additionalArgs []string) {
rt.RunWithData(text, "Args", args, "AdditionalArgs", additionalArgs)
if len(callback) > 0 {
callback[0]()
}
}
}
func HaveRun(run string) OmegaMatcher {
return WithTransform(func(rt *RunTracker) []string {
return rt.TrackedRuns()
}, ContainElement(run))
}
func HaveRunWithData(run string, kv ...interface{}) OmegaMatcher {
matchers := []types.GomegaMatcher{}
for i := 0; i < len(kv); i += 2 {
matchers = append(matchers, HaveKeyWithValue(kv[i], kv[i+1]))
}
return And(
HaveRun(run),
WithTransform(func(rt *RunTracker) map[string]interface{} {
return rt.DataFor(run)
}, And(matchers...)),
)
}
func HaveTrackedNothing() OmegaMatcher {
return WithTransform(func(rt *RunTracker) []string {
return rt.TrackedRuns()
}, BeEmpty())
}
type HaveTrackedMatcher struct {
expectedRuns []string
message string
}
func (m *HaveTrackedMatcher) Match(actual interface{}) (bool, error) {
rt, ok := actual.(*RunTracker)
if !ok {
return false, fmt.Errorf("HaveTracked() must be passed a RunTracker - got %T instead", actual)
}
actualRuns := rt.TrackedRuns()
n := len(actualRuns)
if n < len(m.expectedRuns) {
n = len(m.expectedRuns)
}
failureMessage, success := &strings.Builder{}, true
fmt.Fprintf(failureMessage, "{{/}}%10s == %-10s{{/}}\n", "Actual", "Expected")
fmt.Fprintf(failureMessage, "{{/}}========================\n{{/}}")
for i := 0; i < n; i++ {
var expected, actual string
if i < len(actualRuns) {
actual = actualRuns[i]
}
if i < len(m.expectedRuns) {
expected = m.expectedRuns[i]
}
if actual != expected {
success = false
fmt.Fprintf(failureMessage, "{{red}}%10s != %-10s{{/}}\n", actual, expected)
} else {
fmt.Fprintf(failureMessage, "{{green}}%10s == %-10s{{/}}\n", actual, expected)
}
}
m.message = failureMessage.String()
return success, nil
}
func (m *HaveTrackedMatcher) FailureMessage(actual interface{}) string {
return "Expected runs did not match tracked runs:\n" + formatter.F(m.message)
}
func (m *HaveTrackedMatcher) NegatedFailureMessage(actual interface{}) string {
return "Expected runs matched tracked runs:\n" + formatter.F(m.message)
}
func HaveTracked(runs ...string) OmegaMatcher {
return &HaveTrackedMatcher{expectedRuns: runs}
}
|
