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annotate mrjunejune/test/latex_renderer_test.c @ 245:3843bb6253ac

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[tools] Debounce live LaTeX preview Co-authored-by: Copilot <[email protected]>
author MrJuneJune <me@mrjunejune.com>
date Mon, 03 Aug 2026 18:23:36 -0700
parents b8aa08503378
children 70f2a3dafc1c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include "mrjunejune/latex_renderer.h"
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2
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3 #include <assert.h>
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4 #include <dirent.h>
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5 #include <stdio.h>
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6 #include <string.h>
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7 #include <unistd.h>
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8
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9 static size_t latex_workspace_count(void)
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10 {
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11 DIR *directory = opendir("/tmp");
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12 assert(directory);
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13 size_t count = 0;
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14 struct dirent *entry;
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15 while ((entry = readdir(directory)) != NULL)
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16 {
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17 if (strncmp(entry->d_name, "mrjunejune-latex-", 19) == 0)
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18 count++;
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19 }
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20 closedir(directory);
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21 return count;
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22 }
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23
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24 int main(void)
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25 {
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26 size_t initial_workspaces = latex_workspace_count();
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27
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28 const char *valid =
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29 "\\documentclass{article}\n"
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30 "\\begin{document}\n"
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31 "Hello from the sandbox. $x^2 + y^2 = z^2$\n"
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32 "\\end{document}\n";
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33 Latex_Render_Result result = Latex_Render(
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34 (const uint8_t *)valid,
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35 strlen(valid));
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36 if (result.status != LATEX_RENDER_OK)
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37 fprintf(stderr, "%s\n", result.diagnostics ? result.diagnostics : "unknown error");
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38 assert(result.status == LATEX_RENDER_OK);
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39 assert(result.pdf_size > 1000);
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40 assert(memcmp(result.pdf_data, "%PDF-", 5) == 0);
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41 Latex_Render_Result_Destroy(&result);
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42
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43 const char *invalid =
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44 "\\documentclass{article}\n"
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45 "\\begin{document}\n"
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46 "\\notarealcommand\n"
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47 "\\end{document}\n";
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48 result = Latex_Render((const uint8_t *)invalid, strlen(invalid));
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49 assert(result.status == LATEX_RENDER_COMPILE_ERROR);
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50 assert(result.diagnostics);
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51 assert(strstr(result.diagnostics, "Undefined control sequence"));
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52 Latex_Render_Result_Destroy(&result);
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53
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54 const char *host_read =
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55 "\\documentclass{article}\n"
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56 "\\begin{document}\n"
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57 "\\input{/etc/passwd}\n"
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58 "\\end{document}\n";
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59 result = Latex_Render((const uint8_t *)host_read, strlen(host_read));
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60 assert(result.status == LATEX_RENDER_COMPILE_ERROR);
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61 assert(result.diagnostics);
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62 assert(!strstr(result.diagnostics, "root:x:"));
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63 Latex_Render_Result_Destroy(&result);
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64
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65 char shell_path[128];
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66 snprintf(
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67 shell_path,
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68 sizeof(shell_path),
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69 "/tmp/mrjunejune-latex-shell-%ld",
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70 (long)getpid());
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71 char shell_escape[512];
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72 snprintf(
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73 shell_escape,
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74 sizeof(shell_escape),
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75 "\\documentclass{article}\n"
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76 "\\begin{document}\n"
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77 "\\immediate\\write18{touch %s}\n"
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78 "Shell escape must stay disabled.\n"
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79 "\\end{document}\n",
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80 shell_path);
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81 result = Latex_Render(
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82 (const uint8_t *)shell_escape,
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83 strlen(shell_escape));
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84 assert(result.status == LATEX_RENDER_OK);
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85 assert(access(shell_path, F_OK) != 0);
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86 Latex_Render_Result_Destroy(&result);
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87
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88 uint8_t oversized[LATEX_SOURCE_MAX_BYTES + 1] = {0};
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89 memset(oversized, 'x', sizeof(oversized));
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90 result = Latex_Render(oversized, sizeof(oversized));
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91 assert(result.status == LATEX_RENDER_INVALID_INPUT);
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92 Latex_Render_Result_Destroy(&result);
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93
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94 const char *infinite =
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95 "\\documentclass{article}\n"
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96 "\\begin{document}\n"
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97 "\\loop\\iftrue\\repeat\n"
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98 "\\end{document}\n";
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99 result = Latex_Render((const uint8_t *)infinite, strlen(infinite));
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100 assert(result.status == LATEX_RENDER_TIMEOUT);
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101 Latex_Render_Result_Destroy(&result);
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102
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103 assert(latex_workspace_count() == initial_workspaces);
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104 return 0;
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105 }