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74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
package tea
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import (
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"fmt"
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"reflect"
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"testing"
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)
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// Test is a test value: a value that, given an instance of a testing.T, can be
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// used to execute a single test.
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type Test interface {
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Run(*testing.T)
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}
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// clone clones a test value, yielding a new test value that can be executed
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// and mutated such that the original is not mutated. Tests containing pointers
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// to objects that were not created by tea will probably not work right. That's
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// like, kinda on you though, I can't really enforce things that the Go type
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// system doesn't let me enforce.
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func clone(t Test) Test {
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srcV := reflect.ValueOf(t).Elem()
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destV := reflect.New(srcV.Type())
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destV.Elem().Set(srcV)
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return destV.Interface().(Test)
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}
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// After defines the interface used for performing test cleanup. If a Test
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// value also implements After, that test's After method will be called after
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// all tests are run. Tests in a sequence will have their After methods called
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// in the reverse order of their Run methods; a test always runs its After
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// method after all of its children have completed their own After methods.
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type After interface {
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After(*testing.T)
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}
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func fail(t string, args ...interface{}) Test {
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return failure{cause: fmt.Errorf(t, args...)}
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}
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type failure struct {
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cause error
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}
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func (f failure) Run(t *testing.T) {
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t.Error(f.cause.Error())
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}
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// Pass is a Test value that always passes.
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const Pass = Passing("test passed")
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// Passing is a Test type that always passes. Every value of the Passing type,
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// including the zero value, is a test that will always pass.
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type Passing string
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func (p Passing) Run(t *testing.T) {}
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// parseName parses the name for a given test
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func parseName(test Test) string {
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if s, ok := test.(interface{ String() string }); ok {
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return s.String()
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}
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tv := reflect.ValueOf(test)
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switch tv.Type().Kind() {
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case reflect.Ptr:
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tv = tv.Elem()
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}
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name := tv.Type().Name()
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if name == "" {
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return "unknown-test"
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}
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return name
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}
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