Clean up and add test.

lib/typing/converters/string_converter.go

@@ -62,9 +62,10 @@ func (BooleanConverter) Convert(value any) (string, error) {
 		return fmt.Sprint(castedValue), nil
 	default:
 		// First try to cast the value into a string and see if we can parse it
-		if fmt.Sprint(value) == "0" {
+		stringValue := strings.ToLower(fmt.Sprint(value))
+		if stringValue == "0" || stringValue == "false" {
 			return "false", nil
-		} else if fmt.Sprint(value) == "1" {
+		} else if stringValue == "1" || stringValue == "true" {
 			return "true", nil
 		} else {
 			return "", fmt.Errorf("failed to cast colVal as boolean, colVal: '%v', type: %T", value, value)

lib/typing/converters/string_converter_test.go

@@ -95,15 +95,19 @@ func TestBooleanConverter_Convert(t *testing.T) {
 	}
 	{
 		// True
-		val, err := BooleanConverter{}.Convert(true)
-		assert.NoError(t, err)
-		assert.Equal(t, "true", val)
+		for _, possibleValue := range []any{1, true, "1", "true", "TRUE", "True"} {
+			val, err := BooleanConverter{}.Convert(possibleValue)
+			assert.NoError(t, err)
+			assert.Equal(t, "true", val)
+		}
 	}
 	{
 		// False
-		val, err := BooleanConverter{}.Convert(false)
-		assert.NoError(t, err)
-		assert.Equal(t, "false", val)
+		for _, possibleValue := range []any{0, false, "0", "false", "FALSE", "False"} {
+			val, err := BooleanConverter{}.Convert(possibleValue)
+			assert.NoError(t, err)
+			assert.Equal(t, "false", val)
+		}
 	}
 }
 

lib/typing/converters/util.go

@@ -1,7 +1,6 @@
 package converters
 
 import (
-	"fmt"
 	"strconv"
 )
 
@@ -20,14 +19,3 @@ func BooleanToBit(val bool) int {
 		return 0
 	}
 }
-
-func BitToBoolean[T int | int8 | int16 | int32 | int64](value T) (bool, error) {
-	switch value {
-	case 0:
-		return false, nil
-	case 1:
-		return true, nil
-	default:
-		return false, fmt.Errorf("unexpected value: %d, expected: [0, 1]", value)
-	}
-}