tester

Documentation

Overview

Package tester contains utilities for executing Rego tests.

Index

• Constants
• func Load(args []string, filter loader.Filter) (map[string]*ast.Module, storage.Store, error)
• func LoadBundles(args []string, filter loader.Filter) (map[string]*bundle.Bundle, error)
• type JSONCoverageReporter
  • func (r JSONCoverageReporter) Report(ch chan *Result) error
• type JSONReporter
  • func (r JSONReporter) Report(ch chan *Result) error
• type PrettyReporter
  • func (r PrettyReporter) Report(ch chan *Result) error
• type Reporter
• type Result
  • func Run(ctx context.Context, paths ...string) ([]*Result, error)
  • func RunWithFilter(ctx context.Context, filter loader.Filter, paths ...string) ([]*Result, error)
  • func (r Result) Pass() bool
  • func (r *Result) String() string
• type Runner
  • func NewRunner() *Runner
  • func (r *Runner) EnableFailureLine(yes bool) *Runner
  • func (r *Runner) EnableTracing(yes bool) *Runner
  • func (r *Runner) Run(ctx context.Context, modules map[string]*ast.Module) (ch chan *Result, err error)
  • func (r *Runner) RunTests(ctx context.Context, txn storage.Transaction) (ch chan *Result, err error)
  • func (r *Runner) SetBundles(bundles map[string]*bundle.Bundle) *Runner
  • func (r *Runner) SetCompiler(compiler *ast.Compiler) *Runner
  • func (r *Runner) SetCoverageTracer(tracer topdown.Tracer) *Runner
  • func (r *Runner) SetModules(modules map[string]*ast.Module) *Runner
  • func (r *Runner) SetRuntime(term *ast.Term) *Runner
  • func (r *Runner) SetStore(store storage.Store) *Runner

Constants

const TestPrefix = "test_"

TestPrefix declares the prefix for all rules.

Functions

func Load

func Load(args []string, filter loader.Filter) (map[string]*ast.Module, storage.Store, error)

Load returns modules and an in-memory store for running tests.

func LoadBundles

func LoadBundles(args []string, filter loader.Filter) (map[string]*bundle.Bundle, error)

LoadBundles will load the given args as bundles, either tarball or directory is OK.

Types

type JSONCoverageReporter

type JSONCoverageReporter struct {
	Cover     *cover.Cover
	Modules   map[string]*ast.Module
	Output    io.Writer
	Threshold float64
}

JSONCoverageReporter reports coverage as a JSON structure.

func (JSONCoverageReporter) Report

func (r JSONCoverageReporter) Report(ch chan *Result) error

Report prints the test report to the reporter's output. If any tests fail or encounter errors, this function returns an error.

type JSONReporter

type JSONReporter struct {
	Output io.Writer
}

JSONReporter reports test results as array of JSON objects.

func (JSONReporter) Report

func (r JSONReporter) Report(ch chan *Result) error

Report prints the test report to the reporter's output.

type PrettyReporter

type PrettyReporter struct {
	Output      io.Writer
	Verbose     bool
	FailureLine bool
}

PrettyReporter reports test results in a simple human readable format.

func (PrettyReporter) Report

func (r PrettyReporter) Report(ch chan *Result) error

Report prints the test report to the reporter's output.

type Reporter

type Reporter interface {

	// Report is called with a channel that will contain test results.
	Report(ch chan *Result) error
}

Reporter defines the interface for reporting test results.

type Result

type Result struct {
	Location *ast.Location    `json:"location"`
	Package  string           `json:"package"`
	Name     string           `json:"name"`
	Fail     bool             `json:"fail,omitempty"`
	Error    error            `json:"error,omitempty"`
	Duration time.Duration    `json:"duration"`
	Trace    []*topdown.Event `json:"trace,omitempty"`
	FailedAt *ast.Expr        `json:"failed_at,omitempty"`
}

Result represents a single test case result.

func Run

func Run(ctx context.Context, paths ...string) ([]*Result, error)

Run executes all test cases found under files in path.

func RunWithFilter

func RunWithFilter(ctx context.Context, filter loader.Filter, paths ...string) ([]*Result, error)

RunWithFilter executes all test cases found under files in path. The filter will be applied to exclude files that should not be included.

func (Result) Pass

func (r Result) Pass() bool

Pass returns true if the test case passed.

func (*Result) String

func (r *Result) String() string

type Runner

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

Runner implements simple test discovery and execution.

func NewRunner

func NewRunner() *Runner

NewRunner returns a new runner.

func (*Runner) EnableFailureLine

func (r *Runner) EnableFailureLine(yes bool) *Runner

EnableFailureLine if set will provide the exact failure line

func (*Runner) EnableTracing

func (r *Runner) EnableTracing(yes bool) *Runner

EnableTracing enables tracing of evaluation and includes traces in results. Tracing is currently mutually exclusive with coverage.

func (*Runner) Run

func (r *Runner) Run(ctx context.Context, modules map[string]*ast.Module) (ch chan *Result, err error)

Run executes all tests contained in supplied modules. Deprecated: Use RunTests and the Runner#SetModules or Runner#SetBundles helpers instead. This will NOT use the modules or bundles set on the Runner.

func (*Runner) RunTests

func (r *Runner) RunTests(ctx context.Context, txn storage.Transaction) (ch chan *Result, err error)

RunTests executes all tests contained in modules found in either modules or bundles loaded on the runner.

func (*Runner) SetBundles

func (r *Runner) SetBundles(bundles map[string]*bundle.Bundle) *Runner

SetBundles will add bundles to the Runner which will be compiled then used for discovering and evaluating tests.

func (*Runner) SetCompiler

func (r *Runner) SetCompiler(compiler *ast.Compiler) *Runner

SetCompiler sets the compiler used by the runner.

func (*Runner) SetCoverageTracer

func (r *Runner) SetCoverageTracer(tracer topdown.Tracer) *Runner

SetCoverageTracer sets the tracer to use to compute coverage.

func (*Runner) SetModules

func (r *Runner) SetModules(modules map[string]*ast.Module) *Runner

SetModules will add modules to the Runner which will be compiled then used for discovering and evaluating tests.

func (*Runner) SetRuntime

func (r *Runner) SetRuntime(term *ast.Term) *Runner

SetRuntime sets runtime information to expose to the evaluation engine.

func (*Runner) SetStore

func (r *Runner) SetStore(store storage.Store) *Runner

SetStore sets the store to execute tests over.