70 lines
2.0 KiB
Go
70 lines
2.0 KiB
Go
package clock
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import (
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"reflect"
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"testing"
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)
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// Clock type API:
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//
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// Time(hour, minute int) Clock // a "constructor"
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// (Clock) String() string // a "stringer"
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// (Clock) Add(minutes int) Clock
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//
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// Add should also handle subtraction by accepting negative values.
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// To satisfy the readme requirement about clocks being equal, values of
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// your Clock type need to work with the == operator.
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//
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// It might help to study the time.Time type in the standard library
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// (https://golang.org/pkg/time/#Time) as a model. See how constructors there
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// (Date and Now) return Time values rather than pointers. Note also how
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// most time.Time methods have value receivers rather that pointer recievers.
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// For more background on this read
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// https://github.com/golang/go/wiki/CodeReviewComments#receiver-type.
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const testVersion = 2
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// Retired testVersions
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// (none) 79937f6d58e25ebafe12d1cb4a9f88f4de70cfd6
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// 1 8d0cb8b617be2e36b2ca5ad2034e5f80f2372924
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func TestCreateClock(t *testing.T) {
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if TestVersion != testVersion {
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t.Fatalf("Found TestVersion = %v, want %v", TestVersion, testVersion)
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}
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for _, n := range timeTests {
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if got := Time(n.h, n.m); got.String() != n.want {
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t.Fatalf("Time(%d, %d) = %q, want %q", n.h, n.m, got, n.want)
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}
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}
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t.Log(len(timeTests), "test cases")
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}
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func TestAddMinutes(t *testing.T) {
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for _, a := range addTests {
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if got := Time(a.h, a.m).Add(a.a); got.String() != a.want {
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t.Fatalf("Time(%d, %d).Add(%d) = %q, want %q",
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a.h, a.m, a.a, got, a.want)
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}
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}
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t.Log(len(addTests), "test cases")
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}
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func TestCompareClocks(t *testing.T) {
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for _, e := range eqTests {
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clock1 := Time(e.c1.h, e.c1.m)
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clock2 := Time(e.c2.h, e.c2.m)
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got := clock1 == clock2
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if got != e.want {
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t.Log("Clock1:", clock1)
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t.Log("Clock2:", clock2)
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t.Logf("Clock1 == Clock2 is %t, want %t", got, e.want)
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if reflect.DeepEqual(clock1, clock2) {
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t.Log("(Hint: see comments in clock_test.go.)")
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}
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t.FailNow()
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}
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}
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t.Log(len(eqTests), "test cases")
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}
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