ktesting

package
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Published: Mar 20, 2022 License: Apache-2.0 Imports: 7 Imported by: 7

Documentation

Overview

Package testinglogger contains an implementation of the logr interface which is logging through a function like testing.TB.Log function. Therefore it can be used in standard Go tests and Gingko test suites to ensure that output is associated with the currently running test.

Serialization of the structured log parameters is done in the same way as for klog.InfoS.

Experimental

Notice: This package is EXPERIMENTAL and may be changed or removed in a later release.

Index

Constants

This section is empty.

Variables

View Source
var DefaultConfig = NewConfig()

DefaultConfig is the global default logging configuration for a unit test. It is used by NewTestContext and k8s.io/klogr/testing/init.

Experimental

Notice: This variable is EXPERIMENTAL and may be changed or removed in a later release.

Functions

func NewLogger

func NewLogger(t TL, c *Config) logr.Logger

NewLogger constructs a new logger for the given test interface.

Experimental

Notice: This type is EXPERIMENTAL and may be changed or removed in a later release.

func NewTestContext

func NewTestContext(tl TL) (logr.Logger, context.Context)

NewTestContext returns a logger and context for use in a unit test case or benchmark. The tl parameter can be a testing.T or testing.B pointer that will receive all log output. Importing k8s.io/klogr/testing/init will add command line flags that modify the configuration of that log output.

Experimental

Notice: This function is EXPERIMENTAL and may be changed or removed in a later release.

Types

type Config

type Config struct {
	// contains filtered or unexported fields
}

Config influences logging in a test logger. To make this configurable via command line flags, instantiate this once per program and use AddFlags to bind command line flags to the instance before passing it to NewTestContext.

Must be constructed with NewConfig.

Experimental

Notice: This type is EXPERIMENTAL and may be changed or removed in a later release.

func NewConfig

func NewConfig(opts ...ConfigOption) *Config

NewConfig returns a configuration with recommended defaults and optional modifications. Command line flags are not bound to any FlagSet yet.

Experimental

Notice: This function is EXPERIMENTAL and may be changed or removed in a later release.

func (*Config) AddFlags

func (c *Config) AddFlags(fs *flag.FlagSet)

AddFlags registers the command line flags that control the configuration.

Experimental

Notice: This function is EXPERIMENTAL and may be changed or removed in a later release.

type ConfigOption

type ConfigOption func(co *configOptions)

ConfigOption implements functional parameters for NewConfig.

Experimental

Notice: This type is EXPERIMENTAL and may be changed or removed in a later release.

func VModuleFlagName

func VModuleFlagName(name string) ConfigOption

VModulFlagName overrides the default -testing.vmodule for the per-module verbosity levels.

Experimental

Notice: This function is EXPERIMENTAL and may be changed or removed in a later release.

func Verbosity

func Verbosity(level int) ConfigOption

Verbosity overrides the default verbosity level of 5. That default is higher than in klog itself because it enables logging entries for "the steps leading up to errors and warnings" and "troubleshooting" (see https://github.com/kubernetes/community/blob/9406b4352fe2d5810cb21cc3cb059ce5886de157/contributors/devel/sig-instrumentation/logging.md#logging-conventions), which is useful when debugging a failed test. `go test` only shows the log output for failed tests. To see all output, use `go test -v`.

Experimental

Notice: This function is EXPERIMENTAL and may be changed or removed in a later release.

func VerbosityFlagName

func VerbosityFlagName(name string) ConfigOption

VerbosityFlagName overrides the default -testing.v for the verbosity level.

Experimental

Notice: This function is EXPERIMENTAL and may be changed or removed in a later release.

type TL

type TL interface {
	Helper()
	Log(args ...interface{})
}

TL is the relevant subset of testing.TB.

Experimental

Notice: This type is EXPERIMENTAL and may be changed or removed in a later release.

Directories

Path Synopsis
Package init registers the command line flags for k8s.io/klogr/testing in the flag.CommandLine.
Package init registers the command line flags for k8s.io/klogr/testing in the flag.CommandLine.

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