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84 lines
1.5 KiB
84 lines
1.5 KiB
package web
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import (
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"testing"
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)
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// To tell you the truth, I'm not actually sure how many of these cases are
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// needed. Presumably someone with more patience than I could comb through
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// http://golang.org/s/go11func and figure out what all the different cases I
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// ought to test are, but I think this test includes all the cases I care about
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// and is at least reasonably thorough.
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func a() string {
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return "A"
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}
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func b() string {
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return "B"
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}
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func mkFn(s string) func() string {
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return func() string {
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return s
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}
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}
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var c = mkFn("C")
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var d = mkFn("D")
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var e = a
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var f = c
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var g = mkFn("D")
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type Type string
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func (t *Type) String() string {
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return string(*t)
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}
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var t1 = Type("hi")
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var t2 = Type("bye")
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var t1f = t1.String
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var t2f = t2.String
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var funcEqualTests = []struct {
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a, b func() string
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result bool
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}{
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{a, a, true},
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{a, b, false},
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{b, b, true},
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{a, c, false},
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{c, c, true},
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{c, d, false},
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{a, e, true},
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{a, f, false},
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{c, f, true},
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{e, f, false},
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{d, g, false},
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{t1f, t1f, true},
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{t1f, t2f, false},
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}
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func TestFuncEqual(t *testing.T) {
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t.Parallel()
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for _, test := range funcEqualTests {
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r := funcEqual(test.a, test.b)
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if r != test.result {
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t.Errorf("funcEqual(%v, %v) should have been %v",
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test.a, test.b, test.result)
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}
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}
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h := mkFn("H")
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i := h
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j := mkFn("H")
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k := a
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if !funcEqual(h, i) {
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t.Errorf("h and i should have been equal")
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}
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if funcEqual(h, j) {
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t.Errorf("h and j should not have been equal")
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}
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if !funcEqual(a, k) {
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t.Errorf("a and k should have been equal")
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}
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}
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