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sel_test.go
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package lzjson
import "testing"
func TestSelLex(t *testing.T) {
type testPair struct {
Sel string
Expected []selItem
}
tests := []testPair{
testPair{
"hello",
[]selItem{
selItem{typ: selItemProp, val: "hello"},
},
},
testPair{
"hello.world",
[]selItem{
selItem{typ: selItemProp, val: "hello"},
selItem{typ: selItemDot, val: "."},
selItem{typ: selItemProp, val: "world"},
},
},
testPair{
"hello[123]world",
[]selItem{
selItem{typ: selItemProp, val: "hello"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemNumber, val: "123"},
selItem{typ: selItemRightBrac, val: "]"},
selItem{typ: selItemProp, val: "world"},
},
},
testPair{
"hello.world[123]",
[]selItem{
selItem{typ: selItemProp, val: "hello"},
selItem{typ: selItemDot, val: "."},
selItem{typ: selItemProp, val: "world"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemNumber, val: "123"},
selItem{typ: selItemRightBrac, val: "]"},
},
},
testPair{
"hello[12][3]world.foo.bar[4]",
[]selItem{
selItem{typ: selItemProp, val: "hello"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemNumber, val: "12"},
selItem{typ: selItemRightBrac, val: "]"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemNumber, val: "3"},
selItem{typ: selItemRightBrac, val: "]"},
selItem{typ: selItemProp, val: "world"},
selItem{typ: selItemDot, val: "."},
selItem{typ: selItemProp, val: "foo"},
selItem{typ: selItemDot, val: "."},
selItem{typ: selItemProp, val: "bar"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemNumber, val: "4"},
selItem{typ: selItemRightBrac, val: "]"},
},
},
testPair{
"hello.world[\"foo\"][\"bar\"]",
[]selItem{
selItem{typ: selItemProp, val: "hello"},
selItem{typ: selItemDot, val: "."},
selItem{typ: selItemProp, val: "world"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "foo"},
selItem{typ: selItemRightBrac, val: "]"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "bar"},
selItem{typ: selItemRightBrac, val: "]"},
},
},
testPair{
"[\"foo\"][\"bar\"]",
[]selItem{
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "foo"},
selItem{typ: selItemRightBrac, val: "]"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "bar"},
selItem{typ: selItemRightBrac, val: "]"},
},
},
testPair{
"[\"foo and \\\"bar\\\"\"]",
[]selItem{
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "foo and \\\"bar\\\""},
selItem{typ: selItemRightBrac, val: "]"},
},
},
testPair{
"['foo']['bar']",
[]selItem{
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "foo"},
selItem{typ: selItemRightBrac, val: "]"},
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "bar"},
selItem{typ: selItemRightBrac, val: "]"},
},
},
testPair{
"['foo\\'s bar']",
[]selItem{
selItem{typ: selItemLeftBrac, val: "["},
selItem{typ: selItemString, val: "foo\\'s bar"},
selItem{typ: selItemRightBrac, val: "]"},
},
},
}
for _, test := range tests {
i, l := 0, len(test.Expected)
lex := lexSel(test.Sel)
go lex.run()
for v := lex.nextItem(); v.typ != selItemEnd; v = lex.nextItem() {
if i >= l {
t.Errorf("sel=%#v pos=%#v error=\"index out of range\" got=%#v", test.Sel, i, v)
} else if want, have := test.Expected[i], v; want != have {
t.Errorf("sel=%#v pos=%#v expected=%#v got=%#v", test.Sel, i, want, have)
}
i++
}
if want, have := l, i; want != have {
t.Errorf("sel=%#v number of output mismatch. expected %#v, got %#v", test.Sel, want, have)
}
}
}