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efp_test.go
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efp_test.go
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package efp_test
import (
"context"
"reflect"
"strings"
"testing"
"github.com/praveentiru/efp"
)
// TODO: Add test cases where parsing fails
func TestParse(t *testing.T) {
tt := []struct {
name string
exp string
out interface{}
}{
{"CONCAT with strings only", `CONCAT("Hello ", "World")`, "Hello World"},
{"CONCAT with strings and float", `CONCAT("Hello ", 3.1416)`, "Hello 3.1416"},
{"CONCAT with strings and int", `CONCAT("Hello ", 42)`, "Hello 42"},
{"EXACT function", `EXACT("Hello", "Hello")`, true},
{"FIND function with start position", `FIND("l", "Hello", 2)`, 3.0},
{"FIND function without start position", `FIND("l", "Hello")`, 3.0},
{"LEFT with string and no num chars", `LEFT("Hello World")`, "H"},
{"LEFT with string and with num chars", `LEFT("Hello World", 5)`, "Hello"},
{"LEFT with number input in place of text", `LEFT(3.1416, 3)`, "3.1"},
{"LEN for string", `LEN("Hello World")`, 11.0},
{"LOWER with string", `LOWER("HeLLo World")`, "hello world"},
{"MID with string", `MID("Hello World", 3, 3)`, "llo"},
{"PROPER with string", `PROPER("HEllO wORLd")`, "Hello World"},
{"REPLACE with string", `REPLACE("Hello World", 7, 5, "India")`, "Hello India"},
{"REPT with string", `REPT("Hell", 4)`, "HellHellHellHell"},
{"RIGHT with string and num", `RIGHT("Hell", 2)`, "ll"},
{"SEARCH with mis-match case", `SEARCH("LL", "Hello World")`, 3.0},
{"SUBSTITUTE with string", `SUBSTITUTE("Oink Oink Oink", "ink", "inky", 2)`, "Oink Oinky Oink"},
{"TRIM with spaces", `TRIM(" Hello World ")`, "Hello World"},
{"UPPER with inconsistent csae", `UPPER("Hello India")`, "HELLO INDIA"},
}
var errCnt int
for _, tu := range tt {
_, err := efp.Parse(strings.NewReader(tu.exp))
if err != nil {
t.Logf("Test Case: %v, Parse Error: %v", tu.name, err.Error())
errCnt++
}
}
if errCnt > 0 {
t.Errorf("Failed %v of %v cases", errCnt, len(tt))
}
}
func TestEvaluate(t *testing.T) {
tt := []struct {
name string
exp string
out interface{}
}{
{"CONCAT with strings only", `CONCAT("Hello ", "World")`, "Hello World"},
{"CONCAT with strings and float", `CONCAT("Hello ", 3.1416)`, "Hello 3.1416"},
{"CONCAT with strings and int", `CONCAT("Hello ", 42)`, "Hello 42"},
{"EXACT function", `EXACT("Hello", "Hello")`, true},
{"FIND function with start position", `FIND("l", "Hello", 2)`, 3.0},
{"FIND function without start position", `FIND("l", "Hello")`, 3.0},
{"LEFT with string and no num chars", `LEFT("Hello World")`, "H"},
{"LEFT with string and with num chars", `LEFT("Hello World", 5)`, "Hello"},
{"LEFT with number input in place of text", `LEFT(3.1416, 3)`, "3.1"},
{"LEN for string", `LEN("Hello World")`, 11.0},
{"LOWER with string", `LOWER("HeLLo World")`, "hello world"},
{"MID with string", `MID("Hello World", 3, 3)`, "llo"},
{"PROPER with string", `PROPER("HEllO wORLd")`, "Hello World"},
{"REPLACE with string", `REPLACE("Hello World", 7, 5, "India")`, "Hello India"},
{"REPT with string", `REPT("Hell", 4)`, "HellHellHellHell"},
{"RIGHT with string and num", `RIGHT("Hell", 2)`, "ll"},
{"SEARCH with mis-match case", `SEARCH("LL", "Hello World")`, 3.0},
{"SUBSTITUTE with string", `SUBSTITUTE("Oink Oink Oink", "ink", "inky", 2)`, "Oink Oinky Oink"},
{"TRIM with spaces", `TRIM(" Hello World ")`, "Hello World"},
{"UPPER with inconsistent csae", `UPPER("Hello India")`, "HELLO INDIA"},
}
var errCnt int
for _, tu := range tt {
eval, err := efp.Parse(strings.NewReader(tu.exp))
if err != nil {
t.Logf("Test Case: %v, Parse Error: %v", tu.name, err.Error())
errCnt++
continue
}
if eval == nil {
t.Logf("Test Case: %v, No Parse error but Evaluable is nil", tu.name)
errCnt++
continue
}
switch v := reflect.ValueOf(tu.out); v.Kind() {
case reflect.String:
str, err := eval.EvalString(context.Background(), nil)
if err != nil {
t.Logf("Test Case: %v, EvalString returned error, Error: %v", tu.name, err.Error())
errCnt++
}
if strings.Compare(str, v.String()) != 0 {
t.Logf("Test Case: %v, Expected: %v, Got: %v", tu.name, tu.out, str)
errCnt++
}
case reflect.Float64:
fl, err := eval.EvalFloat64(context.Background(), nil)
if err != nil {
t.Logf("Test Case: %v, EvalFloat returned error, Error: %v", tu.name, err.Error())
errCnt++
}
if int(fl) != int(v.Float()) {
t.Logf("Test Case: %v, Expected: %v, Got: %v", tu.name, tu.out, fl)
errCnt++
}
case reflect.Bool:
b, err := eval.EvalBool(context.Background(), nil)
if err != nil {
t.Logf("Test Case: %v, EvalBool returned error, Error: %v", tu.name, err.Error())
errCnt++
}
if b != v.Bool() {
t.Logf("Test Case: %v, Expected: %v, Got: %v", tu.name, tu.out, b)
errCnt++
}
}
}
if errCnt > 0 {
t.Errorf("Failed %v of %v cases", errCnt, len(tt))
}
}
func TestNestedStringFunc(t *testing.T) {
tt := []struct {
name string
exp string
out string
}{
{"CONCAT with LEFT, MID and RIGHT", `SUBSTITUTE(CONCATENATE(LEFT("Hello World", 5),MID("Hello World", 6, 1),RIGHT("Hello World", 5)), "World", "India")`, "Hello India"},
{"IF with true return", `IF("Hello" = "Hello", "Hello World", "Hello India")`, "Hello World"},
{"IF with false return", `IF("Hello" = "hello", "Hello World", "Hello India")`, "Hello India"},
// {"IF with numerical compariso", `IF(10000 > 1000, "Hello World", "Hello India")`, "Hello World"},
// {"IF with numerical compariso", `IF(10000 > 1000, 45, 35)`, "45"},
{"Nested IFs", `IF("Hello" = "hello", "Bah!!!", IF(TRUE, "Hello India", "Bah!!!"))`, "Hello India"},
{"NOT and False", `IF("Hello" = "hello", "Bah!!!", IF(NOT(FALSE), "Hello India", "Bah!!!"))`, "Hello India"},
}
var errCnt int
for _, tu := range tt {
eval, err := efp.Parse(strings.NewReader(tu.exp))
if err != nil {
t.Logf("Test Case: %v, Expression parse failed, Error: %v", tu.name, err.Error())
errCnt++
continue
}
s, err := eval.EvalString(context.Background(), nil)
if err != nil {
t.Logf("Test Case: %v, Expression evaluation failed, Error: %v", tu.name, err.Error())
errCnt++
continue
}
if strings.Compare(s, tu.out) != 0 {
t.Logf("Test Case: %v, Expected: %v, Got: %v", tu.name, tu.out, s)
errCnt++
}
}
if errCnt > 0 {
t.Errorf("Failed %v of %v cases", errCnt, len(tt))
}
}
func TestBoolFunctions(t *testing.T) {
tt := []struct {
name string
exp string
out bool
}{
{"Equality operator for strings", `("Hello" = "Hello")`, true},
{"Equality check for numbers", `(1 = 1)`, true},
{"Case mis-match in equality check", `("Hello" = "hello")`, false},
{"AND with true return", `AND("Hello" = "Hello", 1=1)`, true},
{"AND with false return", `AND(1=1, "Hello" = "hello")`, false},
{"OR with true return", `OR("Hello" = "hello", 1=1)`, true},
{"OR with false return", `OR(1=5, "Hello" = "hello")`, false},
}
var errCnt int
for _, tu := range tt {
eval, err := efp.Parse(strings.NewReader(tu.exp))
if err != nil {
t.Logf("Test Case: %v, Expression parse failed, Error: %v", tu.name, err.Error())
errCnt++
continue
}
ret, err := eval.EvalBool(context.Background(), nil)
if err != nil {
t.Logf("Test Case: %v, Expression evaluation failed, Error: %v", tu.name, err.Error())
errCnt++
continue
}
if tu.out != ret {
t.Logf("Test Case: %v, Expected: %v, Got: %v", tu.name, tu.out, ret)
errCnt++
}
}
if errCnt > 0 {
t.Errorf("Failed %v of %v cases", errCnt, len(tt))
}
}
func TestParameterExpressions(t *testing.T) {
tParam := make(map[string]interface{}, 0)
tParam["name"] = "India"
tParam["weight"] = 10
tParam["location"] = "FA"
tParam["source"] = "Maharastra"
tt := []struct {
name string
exp string
in map[string]interface{}
out string
}{
{"IF with equality check with string", `IF(name = "India", "Hello India", "Hello World")`, tParam, "Hello India"},
}
var errCnt int
for _, tu := range tt {
eval, err := efp.Parse(strings.NewReader(tu.exp))
if err != nil {
t.Logf("Test Case: %v, Expression parse failed, Error: %v", tu.name, err.Error())
errCnt++
continue
}
s, err := eval.EvalString(context.Background(), tu.in)
if err != nil {
t.Logf("Test Case: %v, Expression evaluation failed, Error: %v, Input Parameters: %v", tu.name, err.Error(), tParam)
errCnt++
continue
}
if strings.Compare(s, tu.out) != 0 {
t.Logf("Test Case: %v, Expected: %v, Got: %v", tu.name, tu.out, s)
errCnt++
}
}
if errCnt > 0 {
t.Errorf("Failed %v of %v cases", errCnt, len(tt))
}
}
func BenchmarkParse(b *testing.B) {
tt := []struct {
name string
exp string
out interface{}
}{
{"CONCAT with strings only", `CONCAT("Hello ", "World")`, "Hello World"},
{"CONCAT with strings and float", `CONCAT("Hello ", 3.1416)`, "Hello 3.1416"},
{"CONCAT with strings and int", `CONCAT("Hello ", 42)`, "Hello 42"},
{"EXACT function", `EXACT("Hello", "Hello")`, true},
{"FIND function with start position", `FIND("l", "Hello", 2)`, 3.0},
{"FIND function without start position", `FIND("l", "Hello")`, 3.0},
{"LEFT with string and no num chars", `LEFT("Hello World")`, "H"},
{"LEFT with string and with num chars", `LEFT("Hello World", 5)`, "Hello"},
{"LEFT with number input in place of text", `LEFT(3.1416, 3)`, "3.1"},
{"LEN for string", `LEN("Hello World")`, 11.0},
{"LOWER with string", `LOWER("HeLLo World")`, "hello world"},
{"MID with string", `MID("Hello World", 3, 3)`, "llo"},
{"PROPER with string", `PROPER("HEllO wORLd")`, "Hello World"},
{"REPLACE with string", `REPLACE("Hello World", 7, 5, "India")`, "Hello India"},
{"REPT with string", `REPT("Hell", 4)`, "HellHellHellHell"},
{"RIGHT with string and num", `RIGHT("Hell", 2)`, "ll"},
{"SEARCH with mis-match case", `SEARCH("LL", "Hello World")`, 3.0},
{"SUBSTITUTE with string", `SUBSTITUTE("Oink Oink Oink", "ink", "inky", 2)`, "Oink Oinky Oink"},
{"TRIM with spaces", `TRIM(" Hello World ")`, "Hello World"},
{"UPPER with inconsistent csae", `UPPER("Hello India")`, "HELLO INDIA"},
}
var errCnt int
b.StartTimer()
for _, tu := range tt {
_, err := efp.Parse(strings.NewReader(tu.exp))
if err != nil {
b.Logf("Test Case: %v, Parse Error: %v", tu.name, err.Error())
errCnt++
}
}
b.StopTimer()
if errCnt > 0 {
b.Errorf("Failed %v of %v cases", errCnt, len(tt))
}
}