104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
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package convey
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type actionSpecifier uint8
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const (
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noSpecifier actionSpecifier = iota
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skipConvey
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focusConvey
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)
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type suite struct {
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Situation string
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Test t
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Focus bool
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Func func(C) // nil means skipped
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FailMode FailureMode
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}
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func newSuite(situation string, failureMode FailureMode, f func(C), test t, specifier actionSpecifier) *suite {
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ret := &suite{
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Situation: situation,
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Test: test,
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Func: f,
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FailMode: failureMode,
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}
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switch specifier {
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case skipConvey:
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ret.Func = nil
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case focusConvey:
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ret.Focus = true
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}
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return ret
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}
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func discover(items []interface{}) *suite {
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name, items := parseName(items)
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test, items := parseGoTest(items)
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failure, items := parseFailureMode(items)
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action, items := parseAction(items)
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specifier, items := parseSpecifier(items)
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if len(items) != 0 {
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conveyPanic(parseError)
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}
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return newSuite(name, failure, action, test, specifier)
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}
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func item(items []interface{}) interface{} {
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if len(items) == 0 {
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conveyPanic(parseError)
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}
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return items[0]
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}
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func parseName(items []interface{}) (string, []interface{}) {
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if name, parsed := item(items).(string); parsed {
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return name, items[1:]
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}
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conveyPanic(parseError)
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panic("never get here")
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}
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func parseGoTest(items []interface{}) (t, []interface{}) {
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if test, parsed := item(items).(t); parsed {
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return test, items[1:]
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}
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return nil, items
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}
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func parseFailureMode(items []interface{}) (FailureMode, []interface{}) {
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if mode, parsed := item(items).(FailureMode); parsed {
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return mode, items[1:]
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}
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return FailureInherits, items
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}
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func parseAction(items []interface{}) (func(C), []interface{}) {
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switch x := item(items).(type) {
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case nil:
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return nil, items[1:]
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case func(C):
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return x, items[1:]
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case func():
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return func(C) { x() }, items[1:]
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}
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conveyPanic(parseError)
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panic("never get here")
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}
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func parseSpecifier(items []interface{}) (actionSpecifier, []interface{}) {
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if len(items) == 0 {
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return noSpecifier, items
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}
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if spec, ok := items[0].(actionSpecifier); ok {
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return spec, items[1:]
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}
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conveyPanic(parseError)
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panic("never get here")
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}
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// This interface allows us to pass the *testing.T struct
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// throughout the internals of this package without ever
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// having to import the "testing" package.
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type t interface {
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Fail()
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}
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const parseError = "You must provide a name (string), then a *testing.T (if in outermost scope), an optional FailureMode, and then an action (func())."
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