Fix typos in comments, tests, and errors (#1346)

Signed-off-by: Oleksandr Redko <Oleksandr_Redko@epam.com>

CHANGELOG.md

@@ -295,7 +295,7 @@ _This release removes all previously deprecated features, resulting in the break
 * [BUGFIX] Fixed goroutine leaks. #236 #472
 * [BUGFIX] Fixed an error message for exponential histogram buckets. #467
 * [BUGFIX] Fixed data race writing to the metric map. #401
-* [BUGFIX] API client: Decode JSON on a 4xx respons but do not on 204
+* [BUGFIX] API client: Decode JSON on a 4xx response but do not on 204
   responses. #476 #414
 
 ## 0.8.0 / 2016-08-17

api/prometheus/v1/api_test.go

@@ -1441,7 +1441,7 @@ func TestAPIClientDo(t *testing.T) {
 				}
 			} else {
 				if warnings != nil {
-					t.Fatalf("unexpexted warnings: %v", warnings)
+					t.Fatalf("unexpected warnings: %v", warnings)
 				}
 			}
 

api/prometheus/v1/example_test.go

@@ -135,7 +135,7 @@ func ExampleAPI_queryRangeWithBasicAuth() {
 	client, err := api.NewClient(api.Config{
 		Address: "http://demo.robustperception.io:9090",
 		// We can use amazing github.com/prometheus/common/config helper!
-		RoundTripper: config.NewBasicAuthRoundTripper("me", "defintely_me", "", api.DefaultRoundTripper),
+		RoundTripper: config.NewBasicAuthRoundTripper("me", "definitely_me", "", api.DefaultRoundTripper),
 	})
 	if err != nil {
 		fmt.Printf("Error creating client: %v\n", err)

prometheus/collectors/expvar_collector.go

@@ -22,7 +22,7 @@ import "github.com/prometheus/client_golang/prometheus"
 // Prometheus metrics. Note that the data models of expvar and Prometheus are
 // fundamentally different, and that the expvar Collector is inherently slower
 // than native Prometheus metrics. Thus, the expvar Collector is probably great
-// for experiments and prototying, but you should seriously consider a more
+// for experiments and prototyping, but you should seriously consider a more
 // direct implementation of Prometheus metrics for monitoring production
 // systems.
 //

prometheus/counter.go

@@ -67,7 +67,7 @@ type CounterVecOpts struct {
 	CounterOpts
 
 	// VariableLabels are used to partition the metric vector by the given set
-	// of labels. Each label value will be constrained with the optional Contraint
+	// of labels. Each label value will be constrained with the optional Constraint
 	// function, if provided.
 	VariableLabels ConstrainableLabels
 }

prometheus/gauge.go

@@ -62,7 +62,7 @@ type GaugeVecOpts struct {
 	GaugeOpts
 
 	// VariableLabels are used to partition the metric vector by the given set
-	// of labels. Each label value will be constrained with the optional Contraint
+	// of labels. Each label value will be constrained with the optional Constraint
 	// function, if provided.
 	VariableLabels ConstrainableLabels
 }

prometheus/go_collector_latest_test.go

@@ -120,7 +120,7 @@ func TestGoCollector_ExposedMetrics(t *testing.T) {
 				name := goMetrics[i].Desc().fqName
 
 				if _, ok := tcase.expectedFQNameSet[name]; !ok {
-					t.Errorf("found unpexpected metric %s", name)
+					t.Errorf("found unexpected metric %s", name)
 					continue
 				}
 			}

prometheus/histogram.go

@@ -392,7 +392,7 @@ type HistogramOpts struct {
 	// zero, it is replaced by default buckets. The default buckets are
 	// DefBuckets if no buckets for a native histogram (see below) are used,
 	// otherwise the default is no buckets. (In other words, if you want to
-	// use both reguler buckets and buckets for a native histogram, you have
+	// use both regular buckets and buckets for a native histogram, you have
 	// to define the regular buckets here explicitly.)
 	Buckets []float64
 
@@ -484,7 +484,7 @@ type HistogramVecOpts struct {
 	HistogramOpts
 
 	// VariableLabels are used to partition the metric vector by the given set
-	// of labels. Each label value will be constrained with the optional Contraint
+	// of labels. Each label value will be constrained with the optional Constraint
 	// function, if provided.
 	VariableLabels ConstrainableLabels
 }
@@ -896,7 +896,7 @@ func (h *histogram) maybeReset(
 	h.resetCounts(cold)
 	// Repeat the latest observation to not lose it completely.
 	cold.observe(value, bucket, true)
-	// Make coldCounts the new hot counts while ressetting countAndHotIdx.
+	// Make coldCounts the new hot counts while resetting countAndHotIdx.
 	n := atomic.SwapUint64(&h.countAndHotIdx, (coldIdx<<63)+1)
 	count := n & ((1 << 63) - 1)
 	waitForCooldown(count, hot)
@@ -1356,7 +1356,7 @@ func makeBuckets(buckets *sync.Map) ([]*dto.BucketSpan, []int64) {
 		// Multiple spans with only small gaps in between are probably
 		// encoded more efficiently as one larger span with a few empty
 		// buckets. Needs some research to find the sweet spot. For now,
-		// we assume that gaps of one ore two buckets should not create
+		// we assume that gaps of one or two buckets should not create
 		// a new span.
 		iDelta := int32(i - nextI)
 		if n == 0 || iDelta > 2 {

prometheus/internal/difflib.go

@@ -14,7 +14,7 @@
 // It provides tools to compare sequences of strings and generate textual diffs.
 //
 // Maintaining `GetUnifiedDiffString` here because original repository
-// (https://github.com/pmezard/go-difflib) is no loger maintained.
+// (https://github.com/pmezard/go-difflib) is no longer maintained.
 package internal
 
 import (

prometheus/push/push.go

@@ -289,7 +289,7 @@ func (p *Pusher) push(ctx context.Context, method string) error {
 		}
 		if err := enc.Encode(mf); err != nil {
 			return fmt.Errorf(
-				"failed to encode metric familty %s, error is %w",
+				"failed to encode metric family %s, error is %w",
 				mf.GetName(), err)
 		}
 	}

prometheus/registry.go

@@ -548,7 +548,7 @@ func (r *Registry) Gather() ([]*dto.MetricFamily, error) {
 			goroutineBudget--
 			runtime.Gosched()
 		}
-		// Once both checkedMetricChan and uncheckdMetricChan are closed
+		// Once both checkedMetricChan and uncheckedMetricChan are closed
 		// and drained, the contraption above will nil out cmc and umc,
 		// and then we can leave the collect loop here.
 		if cmc == nil && umc == nil {

prometheus/registry_test.go

@@ -1104,15 +1104,15 @@ type collidingCollector struct {
 	a, b, c, d prometheus.Collector
 }
 
-// Describe satisifies part of the prometheus.Collector interface.
+// Describe satisfies part of the prometheus.Collector interface.
 func (m *collidingCollector) Describe(desc chan<- *prometheus.Desc) {
 	m.a.Describe(desc)
 	m.b.Describe(desc)
 	m.c.Describe(desc)
 	m.d.Describe(desc)
 }
 
-// Collect satisifies part of the prometheus.Collector interface.
+// Collect satisfies part of the prometheus.Collector interface.
 func (m *collidingCollector) Collect(metric chan<- prometheus.Metric) {
 	m.a.Collect(metric)
 	m.b.Collect(metric)

prometheus/summary.go

@@ -158,7 +158,7 @@ type SummaryVecOpts struct {
 	SummaryOpts
 
 	// VariableLabels are used to partition the metric vector by the given set
-	// of labels. Each label value will be constrained with the optional Contraint
+	// of labels. Each label value will be constrained with the optional Constraint
 	// function, if provided.
 	VariableLabels ConstrainableLabels
 }

prometheus/testutil/testutil_test.go

@@ -230,7 +230,7 @@ func TestCollectAndCompareHistogram(t *testing.T) {
 		case *prometheus.HistogramVec:
 			collector.WithLabelValues("test").Observe(input.observation)
 		default:
-			t.Fatalf("unsuported collector tested")
+			t.Fatalf("unsupported collector tested")
 
 		}
 

tutorial/whatsup/internal/playground_test.go

@@ -36,7 +36,7 @@ import (
 )
 
 func TestPlayground(t *testing.T) {
-	// NOTE: Only one run at the time will work due to statics ports used.
+	// NOTE: Only one run at the time will work due to static ports used.
 
 	e, err := e2e.New(e2e.WithVerbose())
 	testutil.Ok(t, err)