59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package m3_test
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import (
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"testing"
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"m3"
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)
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func TestPassing(t *testing.T) {
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type s struct {
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i int
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m string
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}
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tcs := []s{
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{123, "123"},
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{12345, "234"},
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{1234567, "345"},
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{987654321, "654"},
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{10001, "000"},
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{-10001, "000"},
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}
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for _, tc := range tcs {
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m, err := m3.Digits(tc.i)
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if err != nil {
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t.Fatalf("d(%d) returned %q.", tc.i, err)
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}
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if m != tc.m {
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t.Fatalf("d(%d) expected %q, got %q.", tc.i, tc.m, m)
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}
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t.Logf("d(%d) = %q.", tc.i, m)
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}
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}
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func TestFailing(t *testing.T) {
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type s struct {
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i int
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err error
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}
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tcs := []s{
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{1, m3.ErrorLT3},
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{2, m3.ErrorLT3},
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{-1, m3.ErrorLT3},
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{-10, m3.ErrorLT3},
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{2002, m3.ErrorEven},
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{-2002, m3.ErrorEven},
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{0, m3.ErrorLT3},
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}
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for _, tc := range tcs {
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m, err := m3.Digits(tc.i)
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if err == nil {
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t.Fatal("d(%d) expected error %q, got non-error %q.",
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tc.i, tc.err, m)
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}
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if err != tc.err {
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t.Fatal("d(d) expected error %q, got %q", tc.i, tc.err, err)
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}
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t.Logf("d(%d) returns %q", tc.i, err)
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}
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}
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