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exparser_test.go
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package jsonql
import (
"testing"
)
func TestTokenize(t *testing.T) {
var pass = []struct {
in string
ex []string
}{
{"-1 + 2", []string{"-1", "+", "2"}},
{"-(1+2)", []string{"-", "(", "1", "+", "2", ")"}},
{"+1+2", []string{"+1", "+", "2"}},
{"1+2+(3*4)", []string{"1", "+", "2", "+", "(", "3", "*", "4", ")"}},
{"1+2+(3*4)^34", []string{"1", "+", "2", "+", "(", "3", "*", "4", ")", "^", "34"}},
{"'123 456' 789", []string{"'123 456'", "789"}},
{`123 "456 789"`, []string{"123", "\"456 789\""}},
{`123 "456 '''789"`, []string{"123", "\"456 '''789\""}},
{`2*x+y is null`, []string{"2", "*", "x", "+", "y", "is", "null"}},
}
var fail = []struct {
in string
ex []string
}{}
parser := &Parser{
Operators: sqlOperators,
}
for _, v := range pass {
tokens := parser.Tokenize(v.in)
if !CompareSlices(tokens, v.ex) {
t.Error("Expected:", v.ex, len(v.ex), "actual:", tokens, len(tokens))
}
}
for _, v := range fail {
tokens := parser.Tokenize(v.in)
if CompareSlices(tokens, v.ex) {
t.Error("Expected:", v.ex, "actual:", tokens)
}
}
}
func TestTokenizeSql(t *testing.T) {
var pass = []struct {
in string
ex []string
}{
{"true AND false", []string{"true", "AND", "false"}},
}
var fail = []struct {
in string
ex []string
}{}
parser := &Parser{
Operators: sqlOperators,
}
for _, v := range pass {
tokens := parser.Tokenize(v.in)
if !CompareSlices(tokens, v.ex) {
t.Error("Expected:", v.ex, "actual:", tokens)
}
}
for range fail {
}
}
func TestRPN(t *testing.T) {
var pass = []struct {
in string
ex string
}{
{"true && false", "false"},
{"true && true", "true"},
{"false && false", "false"},
{"true || true", "true"},
{"true || (true && false)", "true"},
{"true && (false && true)", "false"},
{"(true && false) || (false || true)", "true"},
}
var fail = []struct {
in string
ex []string
}{}
parser := &Parser{
Operators: sqlOperators,
}
for _, v := range pass {
result, err := parser.Calculate(v.in)
if err != nil {
t.Error(err)
}
if result != v.ex {
t.Error(v.in, "Expected:", v.ex, "actual:", result)
}
}
for range fail {
}
}