tests: add tests demonstrating vverbose feature rendering

This commit is contained in:
Willi Ballenthin
2022-12-07 12:58:10 +00:00
parent d1aafa3764
commit 1f091a4ccd

View File

@@ -1,10 +1,18 @@
import textwrap
import fixtures
import capa.rules
import capa.render.utils
import capa.features.file
import capa.features.insn
import capa.features.common
import capa.features.freeze
import capa.render.vverbose
import capa.features.address
import capa.features.basicblock
import capa.render.result_document
import capa.features.freeze.features
def test_render_number():
@@ -92,3 +100,53 @@ def test_render_meta_mbc():
assert mbc.method == method
assert capa.render.utils.format_parts_id(mbc) == canonical
@fixtures.parametrize(
"feature,expected",
[
(capa.features.common.OS("windows"), "os: windows"),
(capa.features.common.Arch("i386"), "arch: i386"),
(capa.features.common.Format("pe"), "format: pe"),
(capa.features.common.MatchedRule("foo"), "match: foo @ 0x401000"),
(capa.features.common.Characteristic("foo"), "characteristic: foo @ 0x401000"),
(capa.features.file.Export("SvcMain"), "export: SvcMain @ 0x401000"),
(capa.features.file.Import("CreateFileW"), "import: CreateFileW @ 0x401000"),
(capa.features.file.Section(".detours"), "section: .detours @ 0x401000"),
(capa.features.file.FunctionName("memcmp"), "function name: memcmp @ 0x401000"),
(capa.features.common.Substring("foo"), "substring: foo"),
(capa.features.common.Regex("^foo"), "regex: ^foo"),
(capa.features.common.String("foo"), 'string: "foo" @ 0x401000'),
(capa.features.common.Class("BeanFactory"), "class: BeanFactory @ 0x401000"),
(capa.features.common.Namespace("std::enterprise"), "namespace: std::enterprise @ 0x401000"),
(capa.features.insn.API("CreateFileW"), "api: CreateFileW @ 0x401000"),
(capa.features.insn.Property("foo"), "property: foo @ 0x401000"),
(capa.features.insn.Property("foo", "read"), "property/read: foo @ 0x401000"),
(capa.features.insn.Property("foo", "write"), "property/write: foo @ 0x401000"),
(capa.features.insn.Number(12), "number: 0xC @ 0x401000"),
(capa.features.common.Bytes(b"AAAA"), "bytes: 41414141 @ 0x401000"),
(capa.features.insn.Offset(12), "offset: 0xC @ 0x401000"),
(capa.features.insn.Mnemonic("call"), "mnemonic: call @ 0x401000"),
(capa.features.insn.OperandNumber(0, 12), "operand[0].number: 0xC @ 0x401000"),
(capa.features.insn.OperandOffset(0, 12), "operand[0].offset: 0xC @ 0x401000"),
# unsupported
# (capa.features.basicblock.BasicBlock(), "basic block @ 0x401000"),
],
)
def test_render_vverbose_feature(feature, expected):
ostream = capa.render.utils.StringIO()
addr = capa.features.freeze.Address.from_capa(capa.features.address.AbsoluteVirtualAddress(0x401000))
feature = capa.features.freeze.features.feature_from_capa(feature)
matches = capa.render.result_document.Match(
success=True,
node=capa.render.result_document.FeatureNode(feature=feature),
children=(),
locations=(addr,),
captures={},
)
capa.render.vverbose.render_feature(ostream, matches, feature, indent=0)
assert ostream.getvalue().strip() == expected