238 lines
6.7 KiB
Go
238 lines
6.7 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package testing
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import (
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"fmt"
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"reflect"
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"regexp"
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"strings"
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"unicode"
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)
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// Verify that our IsSpace agrees with unicode.IsSpace.
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func TestIsSpace(t *T) {
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n := 0
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for r := rune(0); r <= unicode.MaxRune; r++ {
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if isSpace(r) != unicode.IsSpace(r) {
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t.Errorf("IsSpace(%U)=%t incorrect", r, isSpace(r))
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n++
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if n > 10 {
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return
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}
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}
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}
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}
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func TestSplitRegexp(t *T) {
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res := func(s ...string) filterMatch { return simpleMatch(s) }
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alt := func(m ...filterMatch) filterMatch { return alternationMatch(m) }
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testCases := []struct {
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pattern string
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result filterMatch
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}{
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// Correct patterns
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// If a regexp pattern is correct, all split regexps need to be correct
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// as well.
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{"", res("")},
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{"/", res("", "")},
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{"//", res("", "", "")},
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{"A", res("A")},
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{"A/B", res("A", "B")},
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{"A/B/", res("A", "B", "")},
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{"/A/B/", res("", "A", "B", "")},
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{"[A]/(B)", res("[A]", "(B)")},
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{"[/]/[/]", res("[/]", "[/]")},
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{"[/]/[:/]", res("[/]", "[:/]")},
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{"/]", res("", "]")},
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{"]/", res("]", "")},
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{"]/[/]", res("]", "[/]")},
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{`([)/][(])`, res(`([)/][(])`)},
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{"[(]/[)]", res("[(]", "[)]")},
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{"A/B|C/D", alt(res("A", "B"), res("C", "D"))},
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// Faulty patterns
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// Errors in original should produce at least one faulty regexp in results.
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{")/", res(")/")},
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{")/(/)", res(")/(", ")")},
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{"a[/)b", res("a[/)b")},
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{"(/]", res("(/]")},
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{"(/", res("(/")},
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{"[/]/[/", res("[/]", "[/")},
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{`\p{/}`, res(`\p{`, "}")},
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{`\p/`, res(`\p`, "")},
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{`[[:/:]]`, res(`[[:/:]]`)},
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}
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for _, tc := range testCases {
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a := splitRegexp(tc.pattern)
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if !reflect.DeepEqual(a, tc.result) {
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t.Errorf("splitRegexp(%q) = %#v; want %#v", tc.pattern, a, tc.result)
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}
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// If there is any error in the pattern, one of the returned subpatterns
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// needs to have an error as well.
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if _, err := regexp.Compile(tc.pattern); err != nil {
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ok := true
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if err := a.verify("", regexp.MatchString); err != nil {
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ok = false
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}
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if ok {
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t.Errorf("%s: expected error in any of %q", tc.pattern, a)
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}
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}
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}
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}
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func TestMatcher(t *T) {
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testCases := []struct {
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pattern string
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parent, sub string
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ok bool
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partial bool
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}{
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// Behavior without subtests.
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{"", "", "TestFoo", true, false},
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{"TestFoo", "", "TestFoo", true, false},
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{"TestFoo/", "", "TestFoo", true, true},
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{"TestFoo/bar/baz", "", "TestFoo", true, true},
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{"TestFoo", "", "TestBar", false, false},
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{"TestFoo/", "", "TestBar", false, false},
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{"TestFoo/bar/baz", "", "TestBar/bar/baz", false, false},
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// with subtests
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{"", "TestFoo", "x", true, false},
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{"TestFoo", "TestFoo", "x", true, false},
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{"TestFoo/", "TestFoo", "x", true, false},
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{"TestFoo/bar/baz", "TestFoo", "bar", true, true},
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// Subtest with a '/' in its name still allows for copy and pasted names
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// to match.
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{"TestFoo/bar/baz", "TestFoo", "bar/baz", true, false},
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{"TestFoo/bar/baz", "TestFoo/bar", "baz", true, false},
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{"TestFoo/bar/baz", "TestFoo", "x", false, false},
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{"TestFoo", "TestBar", "x", false, false},
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{"TestFoo/", "TestBar", "x", false, false},
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{"TestFoo/bar/baz", "TestBar", "x/bar/baz", false, false},
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{"A/B|C/D", "TestA", "B", true, false},
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{"A/B|C/D", "TestC", "D", true, false},
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{"A/B|C/D", "TestA", "C", false, false},
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// subtests only
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{"", "TestFoo", "x", true, false},
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{"/", "TestFoo", "x", true, false},
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{"./", "TestFoo", "x", true, false},
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{"./.", "TestFoo", "x", true, false},
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{"/bar/baz", "TestFoo", "bar", true, true},
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{"/bar/baz", "TestFoo", "bar/baz", true, false},
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{"//baz", "TestFoo", "bar/baz", true, false},
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{"//", "TestFoo", "bar/baz", true, false},
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{"/bar/baz", "TestFoo/bar", "baz", true, false},
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{"//foo", "TestFoo", "bar/baz", false, false},
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{"/bar/baz", "TestFoo", "x", false, false},
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{"/bar/baz", "TestBar", "x/bar/baz", false, false},
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}
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for _, tc := range testCases {
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m := newMatcher(regexp.MatchString, tc.pattern, "-test.run")
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parent := &common{name: tc.parent}
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if tc.parent != "" {
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parent.level = 1
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}
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if n, ok, partial := m.fullName(parent, tc.sub); ok != tc.ok || partial != tc.partial {
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t.Errorf("for pattern %q, fullName(parent=%q, sub=%q) = %q, ok %v partial %v; want ok %v partial %v",
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tc.pattern, tc.parent, tc.sub, n, ok, partial, tc.ok, tc.partial)
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}
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}
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}
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var namingTestCases = []struct{ name, want string }{
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// Uniqueness
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{"", "x/#00"},
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{"", "x/#01"},
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{"#0", "x/#0"}, // Doesn't conflict with #00 because the number of digits differs.
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{"#00", "x/#00#01"}, // Conflicts with implicit #00 (used above), so add a suffix.
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{"#", "x/#"},
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{"#", "x/##01"},
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{"t", "x/t"},
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{"t", "x/t#01"},
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{"t", "x/t#02"},
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{"t#00", "x/t#00"}, // Explicit "#00" doesn't conflict with the unsuffixed first subtest.
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{"a#01", "x/a#01"}, // user has subtest with this name.
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{"a", "x/a"}, // doesn't conflict with this name.
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{"a", "x/a#02"}, // This string is claimed now, so resume
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{"a", "x/a#03"}, // with counting.
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{"a#02", "x/a#02#01"}, // We already used a#02 once, so add a suffix.
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{"b#00", "x/b#00"},
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{"b", "x/b"}, // Implicit 0 doesn't conflict with explicit "#00".
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{"b", "x/b#01"},
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{"b#9223372036854775807", "x/b#9223372036854775807"}, // MaxInt64
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{"b", "x/b#02"},
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{"b", "x/b#03"},
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// Sanitizing
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{"A:1 B:2", "x/A:1_B:2"},
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{"s\t\r\u00a0", "x/s___"},
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{"\x01", `x/\x01`},
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{"\U0010ffff", `x/\U0010ffff`},
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}
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func TestNaming(t *T) {
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m := newMatcher(regexp.MatchString, "", "")
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parent := &common{name: "x", level: 1} // top-level test.
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for i, tc := range namingTestCases {
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if got, _, _ := m.fullName(parent, tc.name); got != tc.want {
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t.Errorf("%d:%s: got %q; want %q", i, tc.name, got, tc.want)
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}
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}
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}
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func FuzzNaming(f *F) {
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for _, tc := range namingTestCases {
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f.Add(tc.name)
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}
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parent := &common{name: "x", level: 1}
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var m *matcher
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var seen map[string]string
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reset := func() {
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m = newMatcher(regexp.MatchString, "", "")
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seen = make(map[string]string)
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}
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reset()
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f.Fuzz(func(t *T, subname string) {
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if len(subname) > 10 {
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// Long names attract the OOM killer.
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t.Skip()
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}
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name := m.unique(parent.name, subname)
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if !strings.Contains(name, "/"+subname) {
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t.Errorf("name %q does not contain subname %q", name, subname)
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}
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if prev, ok := seen[name]; ok {
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t.Errorf("name %q generated by both %q and %q", name, prev, subname)
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}
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if len(seen) > 1e6 {
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// Free up memory.
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reset()
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}
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seen[name] = subname
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})
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}
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// GoString returns a string that is more readable than the default, which makes
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// it easier to read test errors.
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func (m alternationMatch) GoString() string {
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s := make([]string, len(m))
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for i, m := range m {
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s[i] = fmt.Sprintf("%#v", m)
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}
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return fmt.Sprintf("(%s)", strings.Join(s, " | "))
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}
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