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2026-10-17 21:57:03 +08:00

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from stdint import *
from stdio import printf
import memhub
import json
import string
import win32.win32memory as win32mem
import testcheck
# --- Test 1: construct JSON values (with mpool) ---
def test_construct(pool: memhub.MemPool*):
testcheck.section("Construct JsonValue (with mpool)")
# null
v1: json.JsonValue* = json.null(pool)
testcheck.check(v1.is_null(), "null is_null", "null is_null")
# bool
v2: json.JsonValue* = json.bool_val(pool, True)
testcheck.check(v2.is_bool(), "bool true is_bool", "bool true is_bool")
testcheck.check(v2.as_bool(), "bool true as_bool", "bool true as_bool")
v3: json.JsonValue* = json.bool_val(pool, False)
testcheck.check(not v3.as_bool(), "bool false !as_bool", "bool false !as_bool")
# int
v4: json.JsonValue* = json.int_val(pool, 42)
testcheck.check(v4.is_int(), "int is_int", "int is_int")
testcheck.check(v4.as_int() == 42, "int 42 == 42", "int 42 == 42")
v5: json.JsonValue* = json.int_val(pool, -100)
testcheck.check(v5.as_int() == -100, "int -100 == -100", "int -100 == -100")
# float
v6: json.JsonValue* = json.float_val(pool, 3.14)
testcheck.check(v6.is_float(), "float is_float", "float is_float")
testcheck.check(v6.as_float() > 3.13 and v6.as_float() < 3.15, "float 3.14 ~= 3.14", "float 3.14 ~= 3.14")
# string
v7: json.JsonValue* = json.string_val(pool, "hello")
testcheck.check(v7.is_string(), "string is_string", "string is_string")
testcheck.check(string.strcmp(v7.as_string(), "hello") == 0, "string == hello", "string == hello")
# array
v8: json.JsonValue* = json.array(pool)
testcheck.check(v8.is_array(), "array is_array", "array is_array")
testcheck.check(len(v8) == 0, "array empty len()==0", "array empty len()==0")
# object
v9: json.JsonValue* = json.object(pool)
testcheck.check(v9.is_object(), "object is_object", "object is_object")
testcheck.check(len(v9) == 0, "object empty len()==0", "object empty len()==0")
# --- Test 2: build arrays and objects (Pythonic API) ---
def test_build_structures(pool: memhub.MemPool*):
testcheck.section("Build Arrays and Objects (Pythonic API)")
# Build array [1, 2, 3]
arr: json.JsonValue* = json.array(pool)
json.array_append(pool, arr, json.int_val(pool, 1))
json.array_append(pool, arr, json.int_val(pool, 2))
json.array_append(pool, arr, json.int_val(pool, 3))
testcheck.check(len(arr) == 3, "array [1,2,3] len()==3", "array [1,2,3] len()==3")
testcheck.check(arr.get_item(0).as_int() == 1, "array get_item(0)==1", "array get_item(0)==1")
testcheck.check(arr.get_item(1).as_int() == 2, "array get_item(1)==2", "array get_item(1)==2")
testcheck.check(arr.get_item(2).as_int() == 3, "array get_item(2)==3", "array get_item(2)==3")
# Build object {"name": "Viper", "version": 1}
obj: json.JsonValue* = json.object(pool)
json.object_set(pool, obj, "name", json.string_val(pool, "Viper"))
json.object_set(pool, obj, "version", json.int_val(pool, 1))
testcheck.check(len(obj) == 2, "object len()==2", "object len()==2")
# Pythonic access: obj["key"]
name_val: json.JsonValue* = obj["name"]
testcheck.check(name_val != None and string.strcmp(name_val.as_string(), "Viper") == 0, "obj['name']==Viper", "obj['name']==Viper")
ver_val: json.JsonValue* = obj["version"]
testcheck.check(ver_val != None and ver_val.as_int() == 1, "obj['version']==1", "obj['version']==1")
missing: json.JsonValue* = obj["missing"]
testcheck.check(missing == None, "obj['missing']==None", "obj['missing']==None")
# --- Test 3: parse JSON ---
def test_parse(pool: memhub.MemPool*):
testcheck.section("Parse JSON")
# Parse int
v1: json.JsonValue* = json.parse(pool, "42")
testcheck.check(v1.is_int(), "parse int is_int", "parse int is_int")
testcheck.check(v1.as_int() == 42, "parse int == 42", "parse int == 42")
# Parse negative int
v2: json.JsonValue* = json.parse(pool, "-7")
testcheck.check(v2.as_int() == -7, "parse neg int == -7", "parse neg int == -7")
# Parse float
v3: json.JsonValue* = json.parse(pool, "3.14")
testcheck.check(v3.is_float(), "parse float is_float", "parse float is_float")
testcheck.check(v3.as_float() > 3.13 and v3.as_float() < 3.15, "parse float ~= 3.14", "parse float ~= 3.14")
# Parse string
v4: json.JsonValue* = json.parse(pool, '"hello world"')
testcheck.check(v4.is_string(), "parse string is_string", "parse string is_string")
testcheck.check(string.strcmp(v4.as_string(), "hello world") == 0, "parse string == hello world", "parse string == hello world")
# Parse bool
v5: json.JsonValue* = json.parse(pool, "true")
testcheck.check(v5.is_bool(), "parse true is_bool", "parse true is_bool")
testcheck.check(v5.as_bool(), "parse true as_bool", "parse true as_bool")
v6: json.JsonValue* = json.parse(pool, "false")
testcheck.check(not v6.as_bool(), "parse false !as_bool", "parse false !as_bool")
# Parse null
v7: json.JsonValue* = json.parse(pool, "null")
testcheck.check(v7.is_null(), "parse null is_null", "parse null is_null")
# Parse array
v8: json.JsonValue* = json.parse(pool, "[1, 2, 3]")
testcheck.check(v8.is_array(), "parse array is_array", "parse array is_array")
testcheck.check(len(v8) == 3, "parse array len()==3", "parse array len()==3")
testcheck.check(v8.get_item(0).as_int() == 1, "parse array get_item(0)==1", "parse array get_item(0)==1")
testcheck.check(v8.get_item(2).as_int() == 3, "parse array get_item(2)==3", "parse array get_item(2)==3")
# Parse object (Pythonic access)
v9: json.JsonValue* = json.parse(pool, '{"x": 10, "y": 20}')
testcheck.check(v9.is_object(), "parse object is_object", "parse object is_object")
testcheck.check(len(v9) == 2, "parse object len()==2", "parse object len()==2")
x_val: json.JsonValue* = v9["x"]
testcheck.check(x_val != None and x_val.as_int() == 10, "parse obj['x']==10", "parse obj['x']==10")
y_val: json.JsonValue* = v9["y"]
testcheck.check(y_val != None and y_val.as_int() == 20, "parse obj['y']==20", "parse obj['y']==20")
# --- Test 4: write JSON ---
def test_write(pool: memhub.MemPool*):
testcheck.section("Write JSON")
# Write int
v1: json.JsonValue* = json.int_val(pool, 42)
s1: char* = json.write(pool, v1, False)
testcheck.check(string.strcmp(s1, "42") == 0, "write int 42", "write int 42")
# Write string
v2: json.JsonValue* = json.string_val(pool, "hello")
s2: char* = json.write(pool, v2, False)
testcheck.check(string.strcmp(s2, '"hello"') == 0, "write string hello", "write string hello")
# Write bool
v3: json.JsonValue* = json.bool_val(pool, True)
s3: char* = json.write(pool, v3, False)
testcheck.check(string.strcmp(s3, "true") == 0, "write bool true", "write bool true")
v4: json.JsonValue* = json.bool_val(pool, False)
s4: char* = json.write(pool, v4, False)
testcheck.check(string.strcmp(s4, "false") == 0, "write bool false", "write bool false")
# Write null
v5: json.JsonValue* = json.null(pool)
s5: char* = json.write(pool, v5, False)
testcheck.check(string.strcmp(s5, "null") == 0, "write null", "write null")
# Write array
arr: json.JsonValue* = json.array(pool)
json.array_append(pool, arr, json.int_val(pool, 1))
json.array_append(pool, arr, json.int_val(pool, 2))
json.array_append(pool, arr, json.int_val(pool, 3))
s6: char* = json.write(pool, arr, False)
testcheck.check(string.strcmp(s6, "[1,2,3]") == 0, "write array [1,2,3]", "write array [1,2,3]")
# Write object
obj: json.JsonValue* = json.object(pool)
json.object_set(pool, obj, "a", json.int_val(pool, 1))
json.object_set(pool, obj, "b", json.string_val(pool, "x"))
s7: char* = json.write(pool, obj, False)
testcheck.check(s7 != None, "write object non-null", "write object non-null")
# --- Test 5: parse nested JSON (Pythonic API) ---
def test_nested(pool: memhub.MemPool*):
testcheck.section("Parse Nested JSON (Pythonic API)")
src: char* = '{"name": "Viper", "version": 1, "features": ["fast", "safe", "portable"], "nested": {"key": "value", "num": 99}}'
root: json.JsonValue* = json.parse(pool, src)
testcheck.check(root.is_object(), "nested is_object", "nested is_object")
testcheck.check(len(root) == 4, "nested len()==4", "nested len()==4")
# Pythonic access: root["name"]
name: json.JsonValue* = root["name"]
testcheck.check(name != None and string.strcmp(name.as_string(), "Viper") == 0, "root['name']==Viper", "root['name']==Viper")
# root["version"]
ver: json.JsonValue* = root["version"]
testcheck.check(ver != None and ver.as_int() == 1, "root['version']==1", "root['version']==1")
# root["features"] array
feat: json.JsonValue* = root["features"]
testcheck.check(feat != None and feat.is_array(), "root['features'] is_array", "root['features'] is_array")
testcheck.check(feat != None and len(feat) == 3, "root['features'] len()==3", "root['features'] len()==3")
testcheck.check(feat != None and string.strcmp(feat.get_item(0).as_string(), "fast") == 0, "root['features'][0]==fast", "root['features'][0]==fast")
testcheck.check(feat != None and string.strcmp(feat.get_item(2).as_string(), "portable") == 0, "root['features'][2]==portable", "root['features'][2]==portable")
# root["nested"] object
nested: json.JsonValue* = root["nested"]
testcheck.check(nested != None and nested.is_object(), "root['nested'] is_object", "root['nested'] is_object")
nk: json.JsonValue* = nested["key"] if nested != None else None
testcheck.check(nk != None and string.strcmp(nk.as_string(), "value") == 0, "root['nested']['key']==value", "root['nested']['key']==value")
nn: json.JsonValue* = nested["num"] if nested != None else None
testcheck.check(nn != None and nn.as_int() == 99, "root['nested']['num']==99", "root['nested']['num']==99")
# --- Test 6: reuse mpool after reset ---
def test_mpool_reuse():
testcheck.section("MPool Reuse")
# Allocate memory
mem: t.CPtr = win32mem.VirtualAlloc(None, 8192, 0x3000, 0x04)
testcheck.check(mem != None, "VirtualAlloc ok", "VirtualAlloc ok")
pool: memhub.MemPool* = memhub.MemPool(mem, 8192)
# First use
v1: json.JsonValue* = json.int_val(pool, 100)
testcheck.check(v1.as_int() == 100, "reuse round1 int==100", "reuse round1 int==100")
# Reset mpool
pool.reset()
# Second use (reuses memory)
v2: json.JsonValue* = json.string_val(pool, "reused")
testcheck.check(string.strcmp(v2.as_string(), "reused") == 0, "reuse round2 string==reused", "reuse round2 string==reused")
# Reset then parse again
pool.reset()
v3: json.JsonValue* = json.parse(pool, '{"test": true}')
testcheck.check(v3.is_object(), "reuse round3 parse ok", "reuse round3 parse ok")
tv: json.JsonValue* = v3["test"]
testcheck.check(tv != None and tv.as_bool(), "reuse round3 obj['test']==true", "reuse round3 obj['test']==true")
win32mem.VirtualFree(mem, 0, 0x8000)
# --- Test 7: escape characters ---
def test_escape(pool: memhub.MemPool*):
testcheck.section("Escape Characters")
# Parse string with escapes
v1: json.JsonValue* = json.parse(pool, '"hello\\nworld"')
testcheck.check(v1.is_string(), "escape \\n is_string", "escape \\n is_string")
sv1: char* = v1.as_string()
testcheck.check(sv1 != None and sv1[5] == '\n', "escape \\n contains newline", "escape \\n contains newline")
v2: json.JsonValue* = json.parse(pool, '"tab\\there"')
testcheck.check(v2.is_string(), "escape \\t is_string", "escape \\t is_string")
sv2: char* = v2.as_string()
testcheck.check(sv2 != None and sv2[3] == '\t', "escape \\t contains tab", "escape \\t contains tab")
v3: json.JsonValue* = json.parse(pool, '"quote\\""')
testcheck.check(v3.is_string(), "escape \\\" is_string", "escape \\\" is_string")
# --- main ---
def main() -> int | t.CExport:
testcheck.begin("JSON Library Test (Pythonic API)")
# Use mpool bump allocator
mem: t.CPtr = win32mem.VirtualAlloc(None, 65536, 0x3000, 0x04)
pool: memhub.MemPool* = memhub.MemPool(mem, 65536)
test_construct(pool)
pool.reset()
test_build_structures(pool)
pool.reset()
test_parse(pool)
pool.reset()
test_write(pool)
pool.reset()
test_nested(pool)
pool.reset()
test_escape(pool)
pool.reset()
test_mpool_reuse()
win32mem.VirtualFree(mem, 0, 0x8000)
return testcheck.end()