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pattern_test.go
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package strparam
import (
"reflect"
"regexp"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var patternBasicCases = []struct {
// C - const
// P - parameter
name string
pattern string
in string
want Params
found bool
wantErr bool
schemaTokens Tokens
}{
{"empty", "", "", nil, false, true, nil},
{"empty", "", "qwe", nil, false, true, nil},
{"C", "qwe", "", nil, false, false, Tokens{StartToken, ConstToken("qwe"), EndToken}},
{"C", "qwe", "qwe", Params{}, true, false, Tokens{StartToken, ConstToken("qwe"), EndToken}},
{"C", "qwe", "qwe123", nil, false, false, Tokens{StartToken, ConstToken("qwe"), EndToken}},
{"C", "qwe", "123qwe", nil, false, false, Tokens{StartToken, ConstToken("qwe"), EndToken}},
{"C", "qwe", "qw123e", nil, false, false, Tokens{StartToken, ConstToken("qwe"), EndToken}},
{"P", "{qwe}", "123", Params{{"qwe", "123"}}, true, false, Tokens{StartToken, ParameterToken("qwe"), EndToken}},
{"P", "{qwe}", "", Params{{"qwe", ""}}, true, false, Tokens{StartToken, ParameterToken("qwe"), EndToken}},
{"PC", "{qwe}foo", "", nil, false, false, Tokens{StartToken, ParameterToken("qwe"), ConstToken("foo"), EndToken}},
{"PC", "{qwe}foo", "123", nil, false, false, Tokens{StartToken, ParameterToken("qwe"), ConstToken("foo"), EndToken}},
{"PC", "{qwe}foo", "123foo", Params{{"qwe", "123"}}, true, false, Tokens{StartToken, ParameterToken("qwe"), ConstToken("foo"), EndToken}},
{"PC", "{qwe}foo", "123foo123", nil, false, false, Tokens{StartToken, ParameterToken("qwe"), ConstToken("foo"), EndToken}},
{"PC", "{qwe}foo", "foo123", nil, false, false, Tokens{StartToken, ParameterToken("qwe"), ConstToken("foo"), EndToken}},
{"PC", "{qwe}foo", "foo", Params{{"qwe", ""}}, true, false, Tokens{StartToken, ParameterToken("qwe"), ConstToken("foo"), EndToken}},
{"CP", "foo{qwe}", "", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), EndToken}},
{"CP", "foo{qwe}", "123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), EndToken}},
{"CP", "foo{qwe}", "foo123", Params{{"qwe", "123"}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), EndToken}},
{"CP", "foo{qwe}", "123foo123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), EndToken}},
{"CP", "foo{qwe}", "123foo", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), EndToken}},
{"CP", "foo{qwe}", "foo", Params{{"qwe", ""}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), EndToken}},
{"CPC", "foo{qwe}bar", "", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "foo", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "bar", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "barfoo", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "barfoo123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "foo123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "123bar", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "foobar", Params{{"qwe", ""}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "foo123bar", Params{{"qwe", "123"}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "123foo123bar", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "foo123bar123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "foobar123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"CPC", "foo{qwe}bar", "123foobar", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("qwe"), ConstToken("bar"), EndToken}},
{"utf8pattern", "foo{p1}日本語{p2}baz", "fooAAA日本語BBBbaz", Params{{"p1", "AAA"}, {"p2", "BBB"}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("日本語"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"utf8param", "foo{p1}bar{p2}baz", "foo日本語barСЫРbaz", Params{{"p1", "日本語"}, {"p2", "СЫР"}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"invalidParse", "{foo}{bar}", "", nil, false, true, nil},
{"invalidParse", "{foo}{bar}", "", nil, false, true, nil},
{"invalidParse", "{}{bar}", "", nil, false, true, nil},
{"invalidParse", "{foo}{bar", "", nil, false, true, nil},
{"invalidParse", "{foo}{", "", nil, false, true, nil},
{"invalidParse", "{foo}{{", "", nil, false, true, nil},
{"invalidParse", "{foo}{}", "", nil, false, true, nil},
{"invalidParse", "{}{}", "", nil, false, true, nil},
{"invalidParse", "{", "", nil, false, true, nil},
{"invalidParse", "{{}", "", nil, false, true, nil},
{"PCP", "{p1}qw{p2}", "", nil, false, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "123", nil, false, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "q", nil, false, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "w", nil, false, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "qw", Params{{"p1", ""}, {"p2", ""}}, true, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "qw123", Params{{"p1", ""}, {"p2", "123"}}, true, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "w123", nil, false, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "qw123456", Params{{"p1", ""}, {"p2", "123456"}}, true, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "123qw", Params{{"p1", "123"}, {"p2", ""}}, true, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "123q", nil, false, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"PCP", "{p1}qw{p2}", "456123qw", Params{{"p1", "456123"}, {"p2", ""}}, true, false, Tokens{StartToken, ParameterToken("p1"), ConstToken("qw"), ParameterToken("p2"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foo", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foobaz", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "bar", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "barbaz", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foobar", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foobarbaz", Params{{"p1", ""}, {"p2", ""}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foo123barbaz", Params{{"p1", "123"}, {"p2", ""}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foo123bar456baz", Params{{"p1", "123"}, {"p2", "456"}}, true, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foo123bar456baz789", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foobar456baz789", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "foobarbaz789", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "456foo123bar456baz", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "456foo123barbaz", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "456foobarbaz", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "456foobarbaz123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "456foo123barbaz123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
{"CPCPC", "foo{p1}bar{p2}baz", "456foo123bar123baz123", nil, false, false, Tokens{StartToken, ConstToken("foo"), ParameterToken("p1"), ConstToken("bar"), ParameterToken("p2"), ConstToken("baz"), EndToken}},
// // https://github.com/gebv/strparam/issues/3
{"issues#3", "{{bar}", "{123", Params{{"bar", "123"}}, true, false, Tokens{StartToken, ConstToken("{"), ParameterToken("bar"), EndToken}},
}
func Test_Pattern_Parse(t *testing.T) {
tests := []struct {
name string
pattern string
in string
want Params
found bool
wantErr bool
schemaTokens Tokens
}(patternBasicCases)
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Logf("[INFO] pattern = %q, input = %q", tt.pattern, tt.in)
schema, err := Parse(tt.pattern)
if (err != nil) != tt.wantErr {
t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
return
}
if tt.wantErr {
require.Nil(t, schema)
} else {
require.EqualValues(t, tt.schemaTokens, schema.Tokens)
}
if err == nil {
t.Log("[INFO] found schema:", schema)
for _, token := range schema.Tokens {
if token.Mode == CONST {
assert.True(t, token.Len > 0, "const must not be empty")
assert.True(t, token.Raw != "const must not be empty")
}
}
}
found, params := schema.Lookup(tt.in)
if found != tt.found {
t.Errorf("Loockup().found = %v, want %v", found, tt.found)
}
require.EqualValues(t, tt.want, params)
})
}
}
func Test_Pattern_ParseAndLookup_EmptyExp(t *testing.T) {
s := &Pattern{Tokens: []Token{}, NumParams: 0}
t.Run("emptyListTokensNotMatchedInEmpty", func(t *testing.T) {
found, params := s.Lookup("")
assert.False(t, found)
assert.Empty(t, params)
})
t.Run("emptyListTokensNotMatchedInAnything", func(t *testing.T) {
found, params := s.Lookup("123")
assert.False(t, found)
assert.Empty(t, params)
})
s, err := Parse("")
require.Error(t, err)
require.EqualError(t, err, "expression should not is empty")
require.Empty(t, s)
}
func TestDemoRegexp(t *testing.T) {
in := "foo=(bar), baz=(日本語), golang"
t.Run("regexp1", func(t *testing.T) {
re := regexp.MustCompile(`foo=\((.*)\), baz=\((.*)\), golang`)
res := re.FindAllStringSubmatch(in, -1)
t.Logf("%+v", res)
assert.EqualValues(t, [][]string{{"foo=(bar), baz=(日本語), golang", "bar", "日本語"}}, res)
})
t.Run("regexp2", func(t *testing.T) {
re := regexp.MustCompile(`\(([^)]+)\)`)
res := re.FindAllStringSubmatch(in, -1)
t.Logf("%+v", res)
assert.EqualValues(t, [][]string{{"(bar)", "bar"}, {"(日本語)", "日本語"}}, res)
})
t.Run("strparam", func(t *testing.T) {
in := "foo=(bar), baz=(日本語), golang"
s, err := Parse("foo=({p1}), baz=({p2}), golang")
assert.NoError(t, err)
ok, params := s.Lookup(in)
t.Logf("%v %+v", ok, params)
assert.True(t, ok)
assert.EqualValues(t, Params{{"p1", "bar"}, {"p2", "日本語"}}, params)
})
}
func BenchmarkParamsViaRegexp1(b *testing.B) {
str := "foo=(bar), baz=(日本語), golang"
rex := regexp.MustCompile(`foo=\((.*)\), baz=\((.*)\), golang`)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
rex.FindAllStringSubmatch(str, -1)
}
}
func BenchmarkParamsViaRegexp2(b *testing.B) {
str := "foo=(bar), baz=(日本語), golang"
rex := regexp.MustCompile(`\(([^)]+)\)`)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
rex.FindAllStringSubmatch(str, -1)
}
}
func BenchmarkParamsViaStrparam_NumParams2(b *testing.B) {
in := "foo=(bar), baz=(日本語), golang"
s, _ := Parse("foo=({p1}), baz=({p2}), golang")
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
s.Lookup(in)
}
}
func BenchmarkParamsViaStrparam_NumParams5(b *testing.B) {
in := "foo1=(bar), baz2=(日本語), foo3=(bar), baz4=(日本語), foo5=(bar) golang"
s, _ := Parse("foo1=({p1}), baz2=({p2}), foo3=({p3}), baz4=({p4}), foo5=({p5}) golang")
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
s.Lookup(in)
}
}
func BenchmarkParamsViaStrparam_NumParams20(b *testing.B) {
in := "foo1=(bar), baz2=(日本語), foo3=(bar), baz4=(日本語), foo5=(bar), baz6=(日本語), foo7=(bar), baz8=(日本語), foo9=(bar), baz10=(日本語), foo11=(bar), baz12=(日本語), foo13=(bar), baz14=(日本語), foo15=(bar), baz16=(日本語), foo17=(bar), baz18=(日本語), foo19=(bar), baz20=(日本語) golang"
s, _ := Parse("foo1=({p1}), baz2=({p2}), foo3=({p3}), baz4=({p4}), foo5=({p5}), baz6=({p6}), foo7=({p7}), baz8=({p8}), foo9=({p9}), baz10=({p10}), foo11=({p11}), baz12=({p12}), foo13=({p13}), baz14=({p14}), foo15=({p15}), baz16=({p16}), foo17=({p17}), baz18=({p18}), foo19=({p19}), baz20=({p20}) golang")
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
s.Lookup(in)
}
}
func Test_Pattern_Name(t *testing.T) {
tests := []struct {
name string
Tokens Tokens
want string
}{
{name: "empty"},
{"invalid", Tokens{{Mode: CONST, Raw: "123"}}, ""},
{"invalid", Tokens{{Mode: START, Raw: "123"}}, ""},
{"invalid", Tokens{{Mode: END, Raw: "123"}}, ""},
{"", Tokens{{Mode: START}, {Mode: END}}, ""},
{"", Tokens{{Mode: START}, {Mode: END, Raw: "foobar"}}, "foobar"},
{"", Tokens{{Mode: START}, {Mode: CONST, Raw: "123"}, {Mode: END, Raw: "foobar"}}, "foobar"},
{"invalid", Tokens{{Mode: START}, {Mode: CONST, Raw: "123"}}, ""},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
s := Pattern{
Tokens: tt.Tokens,
}
if got := s.Name(); got != tt.want {
t.Errorf("PatternSchema.Name() = %v, want %v", got, tt.want)
}
})
}
}
func TestParseWithName(t *testing.T) {
tests := []struct {
name string
patternName string
patternExp string
wantName string
wantErr bool
}{
{"", "foobar", "a{b}c", "foobar", false},
{"", "", "a{b}c", "", false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := ParseWithName(tt.patternName, tt.patternExp)
if (err != nil) != tt.wantErr {
t.Errorf("ParseWithName() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got.Name(), tt.wantName) {
t.Errorf("ParseWithName() = %v, want %v", got, tt.wantName)
}
})
}
}