eldritch horrors
d55b158e24
this is used in CA rewriting, replacement of placeholders in
derivations, generating scripts for devShells, and some more
places. in all of these transitive replacements are unsound,
and overlapping replacements would be as well. there even is
a test that transitive replacements do not happen (in the CA
RewriteSink suite), but none for overlapping replacements. a
minimally surprising binary rewriter surely would not do any
of these replacements, the only reason we have not seen this
break yet is probably that rewriteStrings is only called for
store paths and things that look like store paths (and those
should never overlap nor admit such transitive replacements)
Change-Id: I6fc29f939d5061d9f56c752624a823ece8437c07
669 lines
19 KiB
C++
669 lines
19 KiB
C++
#include "util.hh"
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#include "types.hh"
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#include <limits.h>
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#include <gtest/gtest.h>
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#include <numeric>
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namespace nix {
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/* ----------- tests for util.hh ------------------------------------------------*/
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/* ----------------------------------------------------------------------------
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* absPath
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* --------------------------------------------------------------------------*/
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TEST(absPath, doesntChangeRoot) {
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auto p = absPath("/");
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ASSERT_EQ(p, "/");
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}
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TEST(absPath, turnsEmptyPathIntoCWD) {
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char cwd[PATH_MAX+1];
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auto p = absPath("");
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ASSERT_EQ(p, getcwd((char*)&cwd, PATH_MAX));
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}
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TEST(absPath, usesOptionalBasePathWhenGiven) {
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char _cwd[PATH_MAX+1];
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char* cwd = getcwd((char*)&_cwd, PATH_MAX);
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auto p = absPath("", cwd);
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ASSERT_EQ(p, cwd);
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}
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TEST(absPath, isIdempotent) {
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char _cwd[PATH_MAX+1];
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char* cwd = getcwd((char*)&_cwd, PATH_MAX);
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auto p1 = absPath(cwd);
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auto p2 = absPath(p1);
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ASSERT_EQ(p1, p2);
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}
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TEST(absPath, pathIsCanonicalised) {
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auto path = "/some/path/with/trailing/dot/.";
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auto p1 = absPath(path);
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auto p2 = absPath(p1);
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ASSERT_EQ(p1, "/some/path/with/trailing/dot");
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ASSERT_EQ(p1, p2);
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}
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/* ----------------------------------------------------------------------------
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* canonPath
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* --------------------------------------------------------------------------*/
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TEST(canonPath, removesTrailingSlashes) {
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auto path = "/this/is/a/path//";
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auto p = canonPath(path);
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ASSERT_EQ(p, "/this/is/a/path");
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}
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TEST(canonPath, removesDots) {
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auto path = "/this/./is/a/path/./";
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auto p = canonPath(path);
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ASSERT_EQ(p, "/this/is/a/path");
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}
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TEST(canonPath, removesDots2) {
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auto path = "/this/a/../is/a////path/foo/..";
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auto p = canonPath(path);
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ASSERT_EQ(p, "/this/is/a/path");
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}
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TEST(canonPath, requiresAbsolutePath) {
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ASSERT_ANY_THROW(canonPath("."));
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ASSERT_ANY_THROW(canonPath(".."));
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ASSERT_ANY_THROW(canonPath("../"));
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ASSERT_DEATH({ canonPath(""); }, "path != \"\"");
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}
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/* ----------------------------------------------------------------------------
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* dirOf
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* --------------------------------------------------------------------------*/
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TEST(dirOf, returnsEmptyStringForRoot) {
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auto p = dirOf("/");
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ASSERT_EQ(p, "/");
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}
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TEST(dirOf, returnsFirstPathComponent) {
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auto p1 = dirOf("/dir/");
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ASSERT_EQ(p1, "/dir");
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auto p2 = dirOf("/dir");
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ASSERT_EQ(p2, "/");
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auto p3 = dirOf("/dir/..");
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ASSERT_EQ(p3, "/dir");
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auto p4 = dirOf("/dir/../");
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ASSERT_EQ(p4, "/dir/..");
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}
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/* ----------------------------------------------------------------------------
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* baseNameOf
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* --------------------------------------------------------------------------*/
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TEST(baseNameOf, emptyPath) {
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auto p1 = baseNameOf("");
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ASSERT_EQ(p1, "");
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}
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TEST(baseNameOf, pathOnRoot) {
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auto p1 = baseNameOf("/dir");
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ASSERT_EQ(p1, "dir");
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}
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TEST(baseNameOf, relativePath) {
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auto p1 = baseNameOf("dir/foo");
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ASSERT_EQ(p1, "foo");
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}
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TEST(baseNameOf, pathWithTrailingSlashRoot) {
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auto p1 = baseNameOf("/");
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ASSERT_EQ(p1, "");
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}
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TEST(baseNameOf, trailingSlash) {
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auto p1 = baseNameOf("/dir/");
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ASSERT_EQ(p1, "dir");
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}
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/* ----------------------------------------------------------------------------
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* isInDir
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* --------------------------------------------------------------------------*/
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TEST(isInDir, trivialCase) {
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auto p1 = isInDir("/foo/bar", "/foo");
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ASSERT_EQ(p1, true);
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}
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TEST(isInDir, notInDir) {
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auto p1 = isInDir("/zes/foo/bar", "/foo");
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ASSERT_EQ(p1, false);
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}
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// XXX: hm, bug or feature? :) Looking at the implementation
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// this might be problematic.
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TEST(isInDir, emptyDir) {
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auto p1 = isInDir("/zes/foo/bar", "");
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ASSERT_EQ(p1, true);
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}
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/* ----------------------------------------------------------------------------
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* isDirOrInDir
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* --------------------------------------------------------------------------*/
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TEST(isDirOrInDir, trueForSameDirectory) {
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ASSERT_EQ(isDirOrInDir("/nix", "/nix"), true);
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ASSERT_EQ(isDirOrInDir("/", "/"), true);
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}
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TEST(isDirOrInDir, trueForEmptyPaths) {
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ASSERT_EQ(isDirOrInDir("", ""), true);
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}
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TEST(isDirOrInDir, falseForDisjunctPaths) {
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ASSERT_EQ(isDirOrInDir("/foo", "/bar"), false);
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}
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TEST(isDirOrInDir, relativePaths) {
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ASSERT_EQ(isDirOrInDir("/foo/..", "/foo"), true);
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}
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// XXX: while it is possible to use "." or ".." in the
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// first argument this doesn't seem to work in the second.
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TEST(isDirOrInDir, DISABLED_shouldWork) {
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ASSERT_EQ(isDirOrInDir("/foo/..", "/foo/."), true);
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}
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/* ----------------------------------------------------------------------------
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* pathExists
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* --------------------------------------------------------------------------*/
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TEST(pathExists, rootExists) {
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ASSERT_TRUE(pathExists("/"));
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}
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TEST(pathExists, cwdExists) {
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ASSERT_TRUE(pathExists("."));
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}
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TEST(pathExists, bogusPathDoesNotExist) {
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ASSERT_FALSE(pathExists("/schnitzel/darmstadt/pommes"));
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}
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/* ----------------------------------------------------------------------------
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* concatStringsSep
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* --------------------------------------------------------------------------*/
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TEST(concatStringsSep, buildCommaSeparatedString) {
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Strings strings;
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strings.push_back("this");
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strings.push_back("is");
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strings.push_back("great");
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ASSERT_EQ(concatStringsSep(",", strings), "this,is,great");
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}
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TEST(concatStringsSep, buildStringWithEmptySeparator) {
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Strings strings;
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strings.push_back("this");
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strings.push_back("is");
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strings.push_back("great");
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ASSERT_EQ(concatStringsSep("", strings), "thisisgreat");
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}
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TEST(concatStringsSep, buildSingleString) {
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Strings strings;
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strings.push_back("this");
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ASSERT_EQ(concatStringsSep(",", strings), "this");
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}
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/* ----------------------------------------------------------------------------
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* base64Encode
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* --------------------------------------------------------------------------*/
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TEST(base64Encode, emptyString) {
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ASSERT_EQ(base64Encode(""), "");
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}
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TEST(base64Encode, encodesAString) {
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ASSERT_EQ(base64Encode("quod erat demonstrandum"), "cXVvZCBlcmF0IGRlbW9uc3RyYW5kdW0=");
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}
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TEST(base64Encode, encodeAndDecode) {
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auto s = "quod erat demonstrandum";
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auto encoded = base64Encode(s);
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auto decoded = base64Decode(encoded);
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ASSERT_EQ(decoded, s);
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}
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TEST(base64Encode, encodeAndDecodeNonPrintable) {
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char s[256];
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std::iota(std::rbegin(s), std::rend(s), 0);
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auto encoded = base64Encode(s);
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auto decoded = base64Decode(encoded);
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EXPECT_EQ(decoded.length(), 255);
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ASSERT_EQ(decoded, s);
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}
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/* ----------------------------------------------------------------------------
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* base64Decode
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* --------------------------------------------------------------------------*/
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TEST(base64Decode, emptyString) {
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ASSERT_EQ(base64Decode(""), "");
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}
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TEST(base64Decode, decodeAString) {
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ASSERT_EQ(base64Decode("cXVvZCBlcmF0IGRlbW9uc3RyYW5kdW0="), "quod erat demonstrandum");
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}
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TEST(base64Decode, decodeThrowsOnInvalidChar) {
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ASSERT_THROW(base64Decode("cXVvZCBlcm_0IGRlbW9uc3RyYW5kdW0="), Error);
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}
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/* ----------------------------------------------------------------------------
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* getLine
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* --------------------------------------------------------------------------*/
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TEST(getLine, all) {
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{
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auto [line, rest] = getLine("foo\nbar\nxyzzy");
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ASSERT_EQ(line, "foo");
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ASSERT_EQ(rest, "bar\nxyzzy");
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}
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{
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auto [line, rest] = getLine("foo\r\nbar\r\nxyzzy");
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ASSERT_EQ(line, "foo");
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ASSERT_EQ(rest, "bar\r\nxyzzy");
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}
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{
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auto [line, rest] = getLine("foo\n");
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ASSERT_EQ(line, "foo");
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ASSERT_EQ(rest, "");
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}
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{
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auto [line, rest] = getLine("foo");
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ASSERT_EQ(line, "foo");
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ASSERT_EQ(rest, "");
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}
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{
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auto [line, rest] = getLine("");
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ASSERT_EQ(line, "");
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ASSERT_EQ(rest, "");
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}
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}
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/* ----------------------------------------------------------------------------
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* toLower
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* --------------------------------------------------------------------------*/
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TEST(toLower, emptyString) {
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ASSERT_EQ(toLower(""), "");
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}
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TEST(toLower, nonLetters) {
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auto s = "!@(*$#)(@#=\\234_";
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ASSERT_EQ(toLower(s), s);
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}
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// std::tolower() doesn't handle unicode characters. In the context of
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// store paths this isn't relevant but doesn't hurt to record this behavior
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// here.
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TEST(toLower, umlauts) {
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auto s = "ÄÖÜ";
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ASSERT_EQ(toLower(s), "ÄÖÜ");
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}
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/* ----------------------------------------------------------------------------
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* string2Float
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* --------------------------------------------------------------------------*/
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TEST(string2Float, emptyString) {
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ASSERT_EQ(string2Float<double>(""), std::nullopt);
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}
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TEST(string2Float, trivialConversions) {
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ASSERT_EQ(string2Float<double>("1.0"), 1.0);
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ASSERT_EQ(string2Float<double>("0.0"), 0.0);
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ASSERT_EQ(string2Float<double>("-100.25"), -100.25);
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}
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/* ----------------------------------------------------------------------------
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* string2Int
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* --------------------------------------------------------------------------*/
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TEST(string2Int, emptyString) {
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ASSERT_EQ(string2Int<int>(""), std::nullopt);
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}
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TEST(string2Int, trivialConversions) {
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ASSERT_EQ(string2Int<int>("1"), 1);
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ASSERT_EQ(string2Int<int>("0"), 0);
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ASSERT_EQ(string2Int<int>("-100"), -100);
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}
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/* ----------------------------------------------------------------------------
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* statusOk
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* --------------------------------------------------------------------------*/
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TEST(statusOk, zeroIsOk) {
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ASSERT_EQ(statusOk(0), true);
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ASSERT_EQ(statusOk(1), false);
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}
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/* ----------------------------------------------------------------------------
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* rewriteStrings
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* --------------------------------------------------------------------------*/
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TEST(rewriteStrings, emptyString) {
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StringMap rewrites;
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rewrites["this"] = "that";
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ASSERT_EQ(rewriteStrings("", rewrites), "");
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}
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TEST(rewriteStrings, emptyRewrites) {
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StringMap rewrites;
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ASSERT_EQ(rewriteStrings("this and that", rewrites), "this and that");
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}
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TEST(rewriteStrings, successfulRewrite) {
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StringMap rewrites;
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rewrites["this"] = "that";
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ASSERT_EQ(rewriteStrings("this and that", rewrites), "that and that");
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}
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TEST(rewriteStrings, intransitive) {
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StringMap rewrites;
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// transitivity can happen both in forward and reverse iteration order of the rewrite map.
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rewrites["a"] = "b";
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rewrites["b"] = "c";
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rewrites["e"] = "b";
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ASSERT_EQ(rewriteStrings("abcde", rewrites), "bccdb");
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}
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TEST(rewriteStrings, nonoverlapping) {
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StringMap rewrites;
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rewrites["ab"] = "ca";
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ASSERT_EQ(rewriteStrings("abb", rewrites), "cab");
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}
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TEST(rewriteStrings, differentLength) {
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StringMap rewrites;
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rewrites["a"] = "an has a trea";
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ASSERT_EQ(rewriteStrings("cat", rewrites), "can has a treat");
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}
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TEST(rewriteStrings, sorted) {
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StringMap rewrites;
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rewrites["a"] = "meow";
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rewrites["abc"] = "puppy";
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ASSERT_EQ(rewriteStrings("abcde", rewrites), "meowbcde");
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}
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TEST(rewriteStrings, multiple) {
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StringMap rewrites;
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rewrites["a"] = "b";
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ASSERT_EQ(rewriteStrings("a1a2a3a", rewrites), "b1b2b3b");
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}
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TEST(rewriteStrings, doesntOccur) {
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StringMap rewrites;
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rewrites["foo"] = "bar";
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ASSERT_EQ(rewriteStrings("this and that", rewrites), "this and that");
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}
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/* ----------------------------------------------------------------------------
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* replaceStrings
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* --------------------------------------------------------------------------*/
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TEST(replaceStrings, emptyString) {
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ASSERT_EQ(replaceStrings("", "this", "that"), "");
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ASSERT_EQ(replaceStrings("this and that", "", ""), "this and that");
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}
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TEST(replaceStrings, successfulReplace) {
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ASSERT_EQ(replaceStrings("this and that", "this", "that"), "that and that");
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}
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TEST(replaceStrings, doesntOccur) {
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ASSERT_EQ(replaceStrings("this and that", "foo", "bar"), "this and that");
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}
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/* ----------------------------------------------------------------------------
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* trim
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* --------------------------------------------------------------------------*/
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TEST(trim, emptyString) {
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ASSERT_EQ(trim(""), "");
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}
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TEST(trim, removesWhitespace) {
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ASSERT_EQ(trim("foo"), "foo");
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ASSERT_EQ(trim(" foo "), "foo");
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ASSERT_EQ(trim(" foo bar baz"), "foo bar baz");
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ASSERT_EQ(trim(" \t foo bar baz\n"), "foo bar baz");
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}
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/* ----------------------------------------------------------------------------
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* chomp
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* --------------------------------------------------------------------------*/
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TEST(chomp, emptyString) {
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ASSERT_EQ(chomp(""), "");
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}
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TEST(chomp, removesWhitespace) {
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ASSERT_EQ(chomp("foo"), "foo");
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ASSERT_EQ(chomp("foo "), "foo");
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ASSERT_EQ(chomp(" foo "), " foo");
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ASSERT_EQ(chomp(" foo bar baz "), " foo bar baz");
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ASSERT_EQ(chomp("\t foo bar baz\n"), "\t foo bar baz");
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}
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/* ----------------------------------------------------------------------------
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* quoteStrings
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* --------------------------------------------------------------------------*/
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TEST(quoteStrings, empty) {
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Strings s = { };
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Strings expected = { };
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ASSERT_EQ(quoteStrings(s), expected);
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}
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TEST(quoteStrings, emptyStrings) {
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Strings s = { "", "", "" };
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Strings expected = { "''", "''", "''" };
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ASSERT_EQ(quoteStrings(s), expected);
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}
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TEST(quoteStrings, trivialQuote) {
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Strings s = { "foo", "bar", "baz" };
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Strings expected = { "'foo'", "'bar'", "'baz'" };
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ASSERT_EQ(quoteStrings(s), expected);
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}
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TEST(quoteStrings, quotedStrings) {
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Strings s = { "'foo'", "'bar'", "'baz'" };
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Strings expected = { "''foo''", "''bar''", "''baz''" };
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ASSERT_EQ(quoteStrings(s), expected);
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}
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/* ----------------------------------------------------------------------------
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* tokenizeString
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* --------------------------------------------------------------------------*/
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TEST(tokenizeString, empty) {
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Strings expected = { };
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ASSERT_EQ(tokenizeString<Strings>(""), expected);
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}
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TEST(tokenizeString, tokenizeSpacesWithDefaults) {
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auto s = "foo bar baz";
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Strings expected = { "foo", "bar", "baz" };
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ASSERT_EQ(tokenizeString<Strings>(s), expected);
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}
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TEST(tokenizeString, tokenizeTabsWithDefaults) {
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auto s = "foo\tbar\tbaz";
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Strings expected = { "foo", "bar", "baz" };
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ASSERT_EQ(tokenizeString<Strings>(s), expected);
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}
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TEST(tokenizeString, tokenizeTabsSpacesWithDefaults) {
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auto s = "foo\t bar\t baz";
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Strings expected = { "foo", "bar", "baz" };
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ASSERT_EQ(tokenizeString<Strings>(s), expected);
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}
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TEST(tokenizeString, tokenizeTabsSpacesNewlineWithDefaults) {
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auto s = "foo\t\n bar\t\n baz";
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Strings expected = { "foo", "bar", "baz" };
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ASSERT_EQ(tokenizeString<Strings>(s), expected);
|
|
}
|
|
|
|
TEST(tokenizeString, tokenizeTabsSpacesNewlineRetWithDefaults) {
|
|
auto s = "foo\t\n\r bar\t\n\r baz";
|
|
Strings expected = { "foo", "bar", "baz" };
|
|
|
|
ASSERT_EQ(tokenizeString<Strings>(s), expected);
|
|
|
|
auto s2 = "foo \t\n\r bar \t\n\r baz";
|
|
Strings expected2 = { "foo", "bar", "baz" };
|
|
|
|
ASSERT_EQ(tokenizeString<Strings>(s2), expected2);
|
|
}
|
|
|
|
TEST(tokenizeString, tokenizeWithCustomSep) {
|
|
auto s = "foo\n,bar\n,baz\n";
|
|
Strings expected = { "foo\n", "bar\n", "baz\n" };
|
|
|
|
ASSERT_EQ(tokenizeString<Strings>(s, ","), expected);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------------
|
|
* get
|
|
* --------------------------------------------------------------------------*/
|
|
|
|
TEST(get, emptyContainer) {
|
|
StringMap s = { };
|
|
auto expected = nullptr;
|
|
|
|
ASSERT_EQ(get(s, "one"), expected);
|
|
}
|
|
|
|
TEST(get, getFromContainer) {
|
|
StringMap s;
|
|
s["one"] = "yi";
|
|
s["two"] = "er";
|
|
auto expected = "yi";
|
|
|
|
ASSERT_EQ(*get(s, "one"), expected);
|
|
}
|
|
|
|
TEST(getOr, emptyContainer) {
|
|
StringMap s = { };
|
|
auto expected = "yi";
|
|
|
|
ASSERT_EQ(getOr(s, "one", "yi"), expected);
|
|
}
|
|
|
|
TEST(getOr, getFromContainer) {
|
|
StringMap s;
|
|
s["one"] = "yi";
|
|
s["two"] = "er";
|
|
auto expected = "yi";
|
|
|
|
ASSERT_EQ(getOr(s, "one", "nope"), expected);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------------
|
|
* filterANSIEscapes
|
|
* --------------------------------------------------------------------------*/
|
|
|
|
TEST(filterANSIEscapes, emptyString) {
|
|
auto s = "";
|
|
auto expected = "";
|
|
|
|
ASSERT_EQ(filterANSIEscapes(s), expected);
|
|
}
|
|
|
|
TEST(filterANSIEscapes, doesntChangePrintableChars) {
|
|
auto s = "09 2q304ruyhr slk2-19024 kjsadh sar f";
|
|
|
|
ASSERT_EQ(filterANSIEscapes(s), s);
|
|
}
|
|
|
|
TEST(filterANSIEscapes, filtersColorCodes) {
|
|
auto s = "\u001b[30m A \u001b[31m B \u001b[32m C \u001b[33m D \u001b[0m";
|
|
|
|
ASSERT_EQ(filterANSIEscapes(s, true, 2), " A" );
|
|
ASSERT_EQ(filterANSIEscapes(s, true, 3), " A " );
|
|
ASSERT_EQ(filterANSIEscapes(s, true, 4), " A " );
|
|
ASSERT_EQ(filterANSIEscapes(s, true, 5), " A B" );
|
|
ASSERT_EQ(filterANSIEscapes(s, true, 8), " A B C" );
|
|
}
|
|
|
|
TEST(filterANSIEscapes, expandsTabs) {
|
|
auto s = "foo\tbar\tbaz";
|
|
|
|
ASSERT_EQ(filterANSIEscapes(s, true), "foo bar baz" );
|
|
}
|
|
|
|
TEST(filterANSIEscapes, utf8) {
|
|
ASSERT_EQ(filterANSIEscapes("foobar", true, 5), "fooba");
|
|
ASSERT_EQ(filterANSIEscapes("fóóbär", true, 6), "fóóbär");
|
|
ASSERT_EQ(filterANSIEscapes("fóóbär", true, 5), "fóóbä");
|
|
ASSERT_EQ(filterANSIEscapes("fóóbär", true, 3), "fóó");
|
|
ASSERT_EQ(filterANSIEscapes("f€€bär", true, 4), "f€€b");
|
|
ASSERT_EQ(filterANSIEscapes("f𐍈𐍈bär", true, 4), "f𐍈𐍈b");
|
|
}
|
|
|
|
}
|