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test: improve n-api array func coverage #12890

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test: improve n-api array func coverage
mhdawson May 7, 2017
43f0e85
squash: address comments
mhdawson May 9, 2017
9b66b64
squash: address comments.
mhdawson May 9, 2017
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13 changes: 10 additions & 3 deletions test/addons-napi/test_array/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -19,19 +19,26 @@ const array = [
]
];

assert.strictEqual(test_array.Test(array, array.length + 1),
assert.strictEqual(test_array.TestGetElement(array, array.length + 1),
'Index out of bound!');
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@thefourtheye thefourtheye May 8, 2017

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Totally unrelated to this PR, but just wanted to say that this implementation doesn't look correct to me. "Index out of bound!" should be thrown as an Error. As it is, "Index out of bound!" could be a value in the Array.


assert.throws(
() => {
test_array.Test(array, -2);
test_array.TestGetElement(array, -2);
},
/Invalid index\. Expects a positive integer\./
);

array.forEach(function(element, index) {
assert.strictEqual(test_array.Test(array, index), element);
assert.strictEqual(test_array.TestGetElement(array, index), element);
});


assert.deepStrictEqual(test_array.New(array), array);

assert(test_array.TestHasElement(array, 0));
assert.strictEqual(false, test_array.TestHasElement(array, array.length + 1));
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@cjihrig cjihrig May 9, 2017

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Can you switch the argument order to strictEqual().

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@mhdawson mhdawson May 9, 2017

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will do.


assert(test_array.NewWithLength(0) instanceof Array);
assert(test_array.NewWithLength(1) instanceof Array);
assert(test_array.NewWithLength(2 ^ 32 - 1) instanceof Array);
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@cjihrig cjihrig May 9, 2017

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Are you attempting to do exponentiation here?

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@jasnell jasnell May 9, 2017

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This would need to be (2 ** 32 - 1)

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@mhdawson mhdawson May 9, 2017

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hmm, maybe coding at 2am in your hotel room is not always the best idea. Will fix.

67 changes: 65 additions & 2 deletions test/addons-napi/test_array/test_array.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
#include <string.h>
#include "../common.h"

napi_value Test(napi_env env, napi_callback_info info) {
napi_value TestGetElement(napi_env env, napi_callback_info info) {
size_t argc = 2;
napi_value args[2];
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
Expand Down Expand Up @@ -52,6 +52,45 @@ napi_value Test(napi_env env, napi_callback_info info) {
return ret;
}

napi_value TestHasElement(napi_env env, napi_callback_info info) {
size_t argc = 2;
napi_value args[2];
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));

NAPI_ASSERT(env, argc >= 2, "Wrong number of arguments");

napi_valuetype valuetype0;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype0));

NAPI_ASSERT(env, valuetype0 == napi_object,
"Wrong type of arguments. Expects an array as first argument.");

napi_valuetype valuetype1;
NAPI_CALL(env, napi_typeof(env, args[1], &valuetype1));

NAPI_ASSERT(env, valuetype1 == napi_number,
"Wrong type of arguments. Expects an integer as second argument.");

napi_value array = args[0];
int32_t index;
NAPI_CALL(env, napi_get_value_int32(env, args[1], &index));

bool isarray;
NAPI_CALL(env, napi_is_array(env, array, &isarray));

if (!isarray) {
return NULL;
}

bool has_element;
NAPI_CALL(env, napi_has_element(env, array, index, &has_element));

napi_value ret;
NAPI_CALL(env, napi_get_boolean(env, has_element, &ret));

return ret;
}

napi_value New(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
Expand Down Expand Up @@ -80,10 +119,34 @@ napi_value New(napi_env env, napi_callback_info info) {
return ret;
}

napi_value NewWithLength(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));

NAPI_ASSERT(env, argc >= 1, "Wrong number of arguments");

napi_valuetype valuetype0;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype0));

NAPI_ASSERT(env, valuetype0 == napi_number,
"Wrong type of arguments. Expects an integer the first argument.");

int32_t array_length;
NAPI_CALL(env, napi_get_value_int32(env, args[0], &array_length));

napi_value ret;
NAPI_CALL(env, napi_create_array_with_length(env, array_length, &ret));

return ret;
}

void Init(napi_env env, napi_value exports, napi_value module, void* priv) {
napi_property_descriptor descriptors[] = {
DECLARE_NAPI_PROPERTY("Test", Test),
DECLARE_NAPI_PROPERTY("TestGetElement", TestGetElement),
DECLARE_NAPI_PROPERTY("TestHasElement", TestHasElement),
DECLARE_NAPI_PROPERTY("New", New),
DECLARE_NAPI_PROPERTY("NewWithLength", NewWithLength),
};

NAPI_CALL_RETURN_VOID(env, napi_define_properties(
Expand Down