4a4fd8ab3a
* fix(errors): print correct number of expected steps when step has defined * add unit test * remove duplicate part from unit test * update changelog
621 строка
20 КиБ
Go
621 строка
20 КиБ
Go
package models_test
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import (
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"context"
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"errors"
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"fmt"
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"reflect"
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"regexp"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/cucumber/godog"
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"github.com/cucumber/godog/formatters"
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"github.com/cucumber/godog/internal/models"
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messages "github.com/cucumber/messages/go/v21"
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)
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type ctxKey string
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func TestShouldSupportVoidHandlerReturn(t *testing.T) {
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wasCalled := false
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initialCtx := context.WithValue(context.Background(), ctxKey("original"), 123)
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fn := func(ctx context.Context) {
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wasCalled = true
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(initialCtx)
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assert.True(t, wasCalled)
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// ctx is passed thru
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assert.Equal(t, initialCtx, ctx)
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assert.Nil(t, err)
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}
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func TestShouldSupportNilContextReturn(t *testing.T) {
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initialCtx := context.WithValue(context.Background(), ctxKey("original"), 123)
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wasCalled := false
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fn := func(ctx context.Context) context.Context {
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wasCalled = true
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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// nil context is permitted if is single return value
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return nil
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(initialCtx)
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assert.True(t, wasCalled)
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// original context is substituted for a nil return value
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// << JL : IS THIS A BUG? TWO ARG API DOESN'T ALLOW THIS
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assert.Equal(t, initialCtx, ctx)
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assert.Nil(t, err)
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}
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func TestShouldSupportNilErrorReturn(t *testing.T) {
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initialCtx := context.WithValue(context.Background(), ctxKey("original"), 123)
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wasCalled := false
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fn := func(ctx context.Context) error {
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wasCalled = true
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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// nil error is permitted
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return nil
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(initialCtx)
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assert.True(t, wasCalled)
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// original context is passed thru if method doesn't return context.
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assert.Equal(t, initialCtx, ctx)
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assert.Nil(t, err)
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}
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func TestShouldSupportContextReturn(t *testing.T) {
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ctx := context.WithValue(context.Background(), ctxKey("original"), 123)
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fn := func(ctx context.Context) context.Context {
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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return context.WithValue(ctx, ctxKey("updated"), 321)
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(ctx)
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assert.Nil(t, err)
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// converys the context
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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assert.Equal(t, 321, ctx.Value(ctxKey("updated")))
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}
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func TestShouldSupportErrorReturn(t *testing.T) {
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ctx := context.WithValue(context.Background(), ctxKey("original"), 123)
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expectedErr := fmt.Errorf("expected error")
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fn := func(ctx context.Context) error {
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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return expectedErr
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(ctx)
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// conveys the returned error
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assert.Equal(t, expectedErr, err)
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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}
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func TestShouldSupportContextAndErrorReturn(t *testing.T) {
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ctx := context.WithValue(context.Background(), ctxKey("original"), 123)
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expectedErr := fmt.Errorf("expected error")
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fn := func(ctx context.Context) (context.Context, error) {
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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return context.WithValue(ctx, ctxKey("updated"), 321), expectedErr
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(ctx)
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// conveys error and context
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assert.Equal(t, expectedErr, err)
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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assert.Equal(t, 321, ctx.Value(ctxKey("updated")))
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}
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func TestShouldSupportContextAndNilErrorReturn(t *testing.T) {
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ctx := context.WithValue(context.Background(), ctxKey("original"), 123)
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fn := func(ctx context.Context) (context.Context, error) {
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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return context.WithValue(ctx, ctxKey("updated"), 321), nil
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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ctx, err := def.Run(ctx)
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// conveys nil error and context
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assert.Nil(t, err)
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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assert.Equal(t, 321, ctx.Value(ctxKey("updated")))
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}
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func TestShouldRejectNilContextWhenMultiValueReturn(t *testing.T) {
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ctx := context.WithValue(context.Background(), ctxKey("original"), 123)
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fn := func(ctx context.Context) (context.Context, error) {
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assert.Equal(t, 123, ctx.Value(ctxKey("original")))
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// nil context is illegal.
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return nil, fmt.Errorf("expected error")
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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Expr: regexp.MustCompile("some regex string"),
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{}
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defer func() {
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if e := recover(); e != nil {
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pe := e.(string)
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assert.Equal(t, "step definition 'some regex string' with return type (context.Context, error) must not return <nil> for the context.Context value, step def also returned an error: expected error", pe)
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}
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}()
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def.Run(ctx)
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assert.Fail(t, "should not get here")
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}
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func TestArgumentCountChecks(t *testing.T) {
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wasCalled := false
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fn := func(a int, b int) {
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wasCalled = true
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{"1"}
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_, err := def.Run(context.Background())
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assert.False(t, wasCalled)
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assert.Equal(t, `func expected more arguments than given: expected 2 arguments, matched 1 from step`, err.(error).Error())
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assert.True(t, errors.Is(err.(error), models.ErrUnmatchedStepArgumentNumber))
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// FIXME - extra args are ignored - but should be reported at runtime
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def.Args = []interface{}{"1", "2", "IGNORED-EXTRA-ARG"}
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_, err = def.Run(context.Background())
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assert.True(t, wasCalled)
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assert.Nil(t, err)
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}
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func TestArgumentCountChecksWithContext(t *testing.T) {
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wasCalled := false
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fn := func(ctx context.Context, a int, b int) {
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wasCalled = true
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{"1"}
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_, err := def.Run(context.Background())
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assert.False(t, wasCalled)
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assert.Equal(t, `func expected more arguments than given: expected 2 arguments, matched 1 from step`, err.(error).Error())
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assert.True(t, errors.Is(err.(error), models.ErrUnmatchedStepArgumentNumber))
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}
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func TestShouldSupportIntTypes(t *testing.T) {
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var aActual int64
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var bActual int32
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var cActual int16
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var dActual int8
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fn := func(a int64, b int32, c int16, d int8) {
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aActual = a
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bActual = b
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cActual = c
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dActual = d
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{"1", "2", "3", "4"}
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_, err := def.Run(context.Background())
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assert.Nil(t, err)
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assert.Equal(t, int64(1), aActual)
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assert.Equal(t, int32(2), bActual)
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assert.Equal(t, int16(3), cActual)
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assert.Equal(t, int8(4), dActual)
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// 128 doesn't fit in signed 8bit int
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def.Args = []interface{}{"1", "2", "3", "128"}
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_, err = def.Run(context.Background())
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assert.Equal(t, `cannot convert argument 3: "128" to int8: strconv.ParseInt: parsing "128": value out of range`, err.(error).Error())
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def.Args = []interface{}{"1", "2", "99999", "4"}
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_, err = def.Run(context.Background())
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assert.Equal(t, `cannot convert argument 2: "99999" to int16: strconv.ParseInt: parsing "99999": value out of range`, err.(error).Error())
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def.Args = []interface{}{"1", strings.Repeat("2", 32), "3", "4"}
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_, err = def.Run(context.Background())
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assert.Equal(t, `cannot convert argument 1: "22222222222222222222222222222222" to int32: strconv.ParseInt: parsing "22222222222222222222222222222222": value out of range`, err.(error).Error())
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def.Args = []interface{}{strings.Repeat("1", 32), "2", "3", "4"}
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_, err = def.Run(context.Background())
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assert.Equal(t, `cannot convert argument 0: "11111111111111111111111111111111" to int64: strconv.ParseInt: parsing "11111111111111111111111111111111": value out of range`, err.(error).Error())
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}
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func TestShouldSupportFloatTypes(t *testing.T) {
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var aActual float64
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var bActual float32
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fn := func(a float64, b float32) {
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aActual = a
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bActual = b
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}
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{"1.1", "2.2"}
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_, err := def.Run(context.Background())
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assert.Nil(t, err)
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assert.Equal(t, float64(1.1), aActual)
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assert.Equal(t, float32(2.2), bActual)
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def.Args = []interface{}{"1.1", strings.Repeat("2", 65) + ".22"}
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_, err = def.Run(context.Background())
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assert.Equal(t, `cannot convert argument 1: "22222222222222222222222222222222222222222222222222222222222222222.22" to float32: strconv.ParseFloat: parsing "22222222222222222222222222222222222222222222222222222222222222222.22": value out of range`, err.(error).Error())
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}
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func TestShouldSupportGherkinDocstring(t *testing.T) {
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var actualDocString *messages.PickleDocString
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fnDocstring := func(a *messages.PickleDocString) {
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actualDocString = a
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}
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expectedDocString := &messages.PickleDocString{Content: "hello"}
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defDocstring := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fnDocstring,
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},
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HandlerValue: reflect.ValueOf(fnDocstring),
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Args: []interface{}{expectedDocString},
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}
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_, err := defDocstring.Run(context.Background())
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assert.Nil(t, err)
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assert.Equal(t, expectedDocString, actualDocString)
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}
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func TestShouldSupportGherkinTable(t *testing.T) {
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var actualTable *messages.PickleTable
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fnTable := func(a *messages.PickleTable) {
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actualTable = a
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}
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expectedTable := &messages.PickleTable{}
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defTable := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fnTable,
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},
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HandlerValue: reflect.ValueOf(fnTable),
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Args: []interface{}{expectedTable},
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}
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_, err := defTable.Run(context.Background())
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assert.Nil(t, err)
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assert.Equal(t, expectedTable, actualTable)
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}
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func TestShouldSupportOnlyByteSlice(t *testing.T) {
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var aActual []byte
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fn1 := func(a []byte) {
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aActual = a
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}
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fn2 := func(a []string) {
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assert.Fail(t, "fn2 should not be called")
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}
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def1 := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn1,
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},
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HandlerValue: reflect.ValueOf(fn1),
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Args: []interface{}{"str"},
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}
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def2 := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn2,
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},
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HandlerValue: reflect.ValueOf(fn2),
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Args: []interface{}{[]string{}},
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}
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_, err := def1.Run(context.Background())
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assert.Nil(t, err)
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assert.Equal(t, []byte{'s', 't', 'r'}, aActual)
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_, err = def2.Run(context.Background())
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assert.Equal(t, `func has unsupported parameter type: the slice parameter 0 type []string is not supported`, err.(error).Error())
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assert.True(t, errors.Is(err.(error), models.ErrUnsupportedParameterType))
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}
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// this test is superficial compared to the ones above where the actual error messages the user woudl see are verified
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func TestStepDefinition_Run_StepArgsShouldBeString(t *testing.T) {
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test := func(t *testing.T, fn interface{}, expectedError string) {
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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// some value that is not a string
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def.Args = []interface{}{12}
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_, res := def.Run(context.Background())
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if res == nil {
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t.Fatalf("expected a string convertion error, but got none")
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}
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err, ok := res.(error)
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if !ok {
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t.Fatalf("expected a string convertion error, but got %T instead", res)
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}
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if !errors.Is(err, models.ErrCannotConvert) {
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t.Fatalf("expected a string convertion error, but got '%v' instead", err)
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}
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assert.Equal(t, expectedError, err.Error())
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}
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// Ensure step type error if step argument is not a string
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// for all supported types.
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const toStringError = `cannot convert argument 0: "12" of type "int" to string`
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shouldNotBeCalled := func() { assert.Fail(t, "shound not be called") }
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test(t, func(a int) { shouldNotBeCalled() }, toStringError)
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test(t, func(a int64) { shouldNotBeCalled() }, toStringError)
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test(t, func(a int32) { shouldNotBeCalled() }, toStringError)
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test(t, func(a int16) { shouldNotBeCalled() }, toStringError)
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test(t, func(a int8) { shouldNotBeCalled() }, toStringError)
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test(t, func(a string) { shouldNotBeCalled() }, toStringError)
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test(t, func(a float64) { shouldNotBeCalled() }, toStringError)
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test(t, func(a float32) { shouldNotBeCalled() }, toStringError)
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test(t, func(a *godog.Table) { shouldNotBeCalled() }, `cannot convert argument 0: "12" of type "int" to *messages.PickleTable`)
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test(t, func(a *godog.DocString) { shouldNotBeCalled() }, `cannot convert argument 0: "12" of type "int" to *messages.PickleDocString`)
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test(t, func(a []byte) { shouldNotBeCalled() }, toStringError)
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}
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func TestStepDefinition_Run_InvalidHandlerParamConversion(t *testing.T) {
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test := func(t *testing.T, fn interface{}, expectedError string) {
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def := &models.StepDefinition{
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StepDefinition: formatters.StepDefinition{
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Handler: fn,
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},
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HandlerValue: reflect.ValueOf(fn),
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}
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def.Args = []interface{}{12}
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_, res := def.Run(context.Background())
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if res == nil {
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t.Fatalf("expected an unsupported argument type error, but got none")
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}
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err, ok := res.(error)
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if !ok {
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t.Fatalf("expected an unsupported argument type error, but got %T instead", res)
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}
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if !errors.Is(err, models.ErrUnsupportedParameterType) {
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// FIXME JL - check logic as the error message was wrong
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t.Fatalf("expected an unsupported argument type error, but got '%v' instead", err)
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}
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assert.Equal(t, expectedError, err.Error())
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}
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shouldNotBeCalled := func() { assert.Fail(t, "shound not be called") }
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// Lists some unsupported argument types for step handler.
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// Pointers should work only for godog.Table/godog.DocString
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test(t, func(a *int) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *int is not supported")
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|
test(t, func(a *int64) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *int64 is not supported")
|
|
test(t, func(a *int32) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *int32 is not supported")
|
|
test(t, func(a *int16) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *int16 is not supported")
|
|
test(t, func(a *int8) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *int8 is not supported")
|
|
test(t, func(a *string) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *string is not supported")
|
|
test(t, func(a *float64) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *float64 is not supported")
|
|
test(t, func(a *float32) { shouldNotBeCalled() }, "func has unsupported parameter type: the data type of parameter 0 type *float32 is not supported")
|
|
|
|
// I cannot pass structures
|
|
test(t, func(a godog.Table) { shouldNotBeCalled() }, "func has unsupported parameter type: the struct parameter 0 type messages.PickleTable is not supported")
|
|
test(t, func(a godog.DocString) { shouldNotBeCalled() }, "func has unsupported parameter type: the struct parameter 0 type messages.PickleDocString is not supported")
|
|
test(t, func(a testStruct) { shouldNotBeCalled() }, "func has unsupported parameter type: the struct parameter 0 type models_test.testStruct is not supported")
|
|
|
|
// // I cannot use maps
|
|
test(t, func(a map[string]interface{ body() }) { shouldNotBeCalled() }, "func has unsupported parameter type: the parameter 0 type map is not supported")
|
|
test(t, func(a map[string]int) { shouldNotBeCalled() }, "func has unsupported parameter type: the parameter 0 type map is not supported")
|
|
|
|
// // Slice works only for byte
|
|
test(t, func(a []int) { shouldNotBeCalled() }, "func has unsupported parameter type: the slice parameter 0 type []int is not supported")
|
|
test(t, func(a []string) { shouldNotBeCalled() }, "func has unsupported parameter type: the slice parameter 0 type []string is not supported")
|
|
test(t, func(a []bool) { shouldNotBeCalled() }, "func has unsupported parameter type: the slice parameter 0 type []bool is not supported")
|
|
|
|
// // I cannot use bool
|
|
test(t, func(a bool) { shouldNotBeCalled() }, "func has unsupported parameter type: the parameter 0 type bool is not supported")
|
|
|
|
}
|
|
|
|
func TestStepDefinition_Run_StringConversionToFunctionType(t *testing.T) {
|
|
test := func(t *testing.T, fn interface{}, args []interface{}, expectedError string) {
|
|
def := &models.StepDefinition{
|
|
StepDefinition: formatters.StepDefinition{
|
|
Handler: fn,
|
|
},
|
|
HandlerValue: reflect.ValueOf(fn),
|
|
Args: args,
|
|
}
|
|
|
|
_, res := def.Run(context.Background())
|
|
if res == nil {
|
|
t.Fatalf("expected a cannot convert argument type error, but got none")
|
|
}
|
|
|
|
err, ok := res.(error)
|
|
if !ok {
|
|
t.Fatalf("expected a cannot convert argument type error, but got %T instead", res)
|
|
}
|
|
|
|
if !errors.Is(err, models.ErrCannotConvert) {
|
|
t.Fatalf("expected a cannot convert argument type error, but got '%v' instead", err)
|
|
}
|
|
|
|
assert.Equal(t, expectedError, err.Error())
|
|
}
|
|
|
|
shouldNotBeCalled := func() { assert.Fail(t, "shound not be called") }
|
|
|
|
// Lists some unsupported argument types for step handler.
|
|
|
|
// Cannot convert invalid int
|
|
test(t, func(a int) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to int: strconv.ParseInt: parsing "a": invalid syntax`)
|
|
test(t, func(a int64) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to int64: strconv.ParseInt: parsing "a": invalid syntax`)
|
|
test(t, func(a int32) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to int32: strconv.ParseInt: parsing "a": invalid syntax`)
|
|
test(t, func(a int16) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to int16: strconv.ParseInt: parsing "a": invalid syntax`)
|
|
test(t, func(a int8) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to int8: strconv.ParseInt: parsing "a": invalid syntax`)
|
|
|
|
// Cannot convert invalid float
|
|
test(t, func(a float32) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to float32: strconv.ParseFloat: parsing "a": invalid syntax`)
|
|
test(t, func(a float64) { shouldNotBeCalled() }, []interface{}{"a"}, `cannot convert argument 0: "a" to float64: strconv.ParseFloat: parsing "a": invalid syntax`)
|
|
|
|
// Cannot convert to DataArg
|
|
test(t, func(a *godog.Table) { shouldNotBeCalled() }, []interface{}{"194"}, `cannot convert argument 0: "194" of type "string" to *messages.PickleTable`)
|
|
|
|
// Cannot convert to DocString ?
|
|
test(t, func(a *godog.DocString) { shouldNotBeCalled() }, []interface{}{"194"}, `cannot convert argument 0: "194" of type "string" to *messages.PickleDocString`)
|
|
|
|
}
|
|
|
|
// @TODO maybe we should support duration
|
|
// fn2 := func(err time.Duration) error { return nil }
|
|
// def = &models.StepDefinition{Handler: fn2, HandlerValue: reflect.ValueOf(fn2)}
|
|
|
|
// def.Args = []interface{}{"1"}
|
|
// if _, err := def.Run(context.Background()); err == nil {
|
|
// t.Fatalf("expected an error due to wrong argument type, but got none")
|
|
// }
|
|
|
|
type testStruct struct {
|
|
_ string
|
|
}
|
|
|
|
func TestShouldSupportDocStringToStringConversion(t *testing.T) {
|
|
var aActual string
|
|
fn := func(a string) {
|
|
aActual = a
|
|
}
|
|
|
|
def := &models.StepDefinition{
|
|
StepDefinition: formatters.StepDefinition{
|
|
Handler: fn,
|
|
},
|
|
HandlerValue: reflect.ValueOf(fn),
|
|
Args: []interface{}{&messages.PickleDocString{
|
|
Content: "hello",
|
|
}},
|
|
}
|
|
|
|
_, err := def.Run(context.Background())
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, "hello", aActual)
|
|
}
|