1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /********************************************************************
4  * COPYRIGHT:
5  * Copyright (c) 2003-2013, International Business Machines Corporation and
6  * others. All Rights Reserved.
7  ********************************************************************/
8 /*
9  * File tracetst.c
10  *
11  */
12 
13 
14 #include "unicode/utypes.h"
15 #include "unicode/utrace.h"
16 #include "unicode/uclean.h"
17 #include "unicode/uchar.h"
18 #include "unicode/ures.h"
19 #include "unicode/ucnv.h"
20 #include "cintltst.h"
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <string.h>
24 
25 /* We define the following to always test tracing, even when it's off in the library. */
26 #if U_ENABLE_TRACING
27 #define ENABLE_TRACING_ORIG_VAL 1
28 #else
29 #define ENABLE_TRACING_ORIG_VAL 0
30 #endif
31 #undef U_ENABLE_TRACING
32 #define U_ENABLE_TRACING 1
33 #include "utracimp.h"
34 
35 
36 static void TestTraceAPI(void);
37 
38 
39 void
40 addUTraceTest(TestNode** root);
41 
42 void
addUTraceTest(TestNode ** root)43 addUTraceTest(TestNode** root)
44 {
45     addTest(root, &TestTraceAPI,            "tsutil/TraceTest/TestTraceAPI"  );
46 }
47 
48 
49 /*
50  * Macro for assert style tests.
51  */
52 #define TEST_ASSERT(expr) UPRV_BLOCK_MACRO_BEGIN { \
53     if (!(expr)) { \
54         log_err("FAILED Assertion \"" #expr "\" at  %s:%d.\n", __FILE__, __LINE__); \
55     } \
56 } UPRV_BLOCK_MACRO_END
57 
58 
59 /*
60  *  test_format.   Helper function for checking the results of a formatting
61  *                 operation.  Executes the format op and compares actual
62  *                 results with the expected results.
63  *
64  *       params:   format:  the format to be applied.
65  *                 bufCap   buffer size to pass to formatter.
66  *                 indent:  indent value to give to formatter
67  *                 result   expected result.  Do not truncate for short bufCap -
68  *                          this function will do it.
69  *                 line     __LINE__, so we can report where failure happened.
70  *                 ...      variable args to pass to formatter
71  *
72  */
test_format(const char * format,int32_t bufCap,int32_t indent,const char * result,int32_t line,...)73 static void test_format(const char *format, int32_t bufCap, int32_t indent,
74                         const char *result, int32_t line, ...) {
75     int32_t  len;
76     va_list  args;
77     char  buf[300];
78     char  expectedResult[300];
79 
80     /* check that local buffers are big enough for the test case */
81     if ((int32_t)sizeof(buf) <= bufCap) {
82         log_err("At file:line %s:%d, requested bufCap too large.\n");
83         return;
84     }
85     if (strlen(result) >= sizeof(expectedResult)) {
86         log_err("At file:line %s:%d, expected result too large.\n");
87         return;
88     }
89 
90    /* Guarantee a nul term if buffer is smaller than output */
91     strcpy(expectedResult, result);
92     expectedResult[bufCap] = 0;
93 
94     /* run the formatter */
95     va_start(args, line);
96     memset(buf, 0, sizeof(buf));
97     len = utrace_vformat(buf, bufCap, indent, format, args);
98     (void)len;    /* Suppress set but not used warning. */
99 
100     /* Check results.   */
101     if (strcmp(expectedResult, buf) != 0) {
102         log_err("At file:line %s:%d  Expected \"%s\", got \"%s\"  \n",
103              __FILE__, line, expectedResult, buf);
104     }
105     va_end(args);
106 }
107 
108 
109 /*
110  *  define trace functions for use in this test.
111  */
112 static int    gTraceEntryCount;
113 static int    gTraceExitCount;
114 static int    gTraceDataCount;
115 static UBool  gFnNameError   = FALSE;
116 static UBool  gFnFormatError = FALSE;
117 
testTraceEntry(const void * context,int32_t fnNumber)118 static void U_CALLCONV testTraceEntry(const void *context, int32_t fnNumber) {
119     (void)context; // suppress compiler warnings about unused variable
120     const char *fnName;
121     const char *bogusFnName;
122 
123     gTraceEntryCount++;
124 
125     /* Verify that a name is available for the fnNumber passed to us */
126     bogusFnName = utrace_functionName(-1);
127     fnName = utrace_functionName(fnNumber);
128     if (strcmp(fnName, bogusFnName) == 0) {
129         gFnNameError = TRUE;
130     }
131     /* printf("%s() Enter\n", fnName); */
132 
133 }
134 
testTraceExit(const void * context,int32_t fnNumber,const char * fmt,va_list args)135 static void U_CALLCONV testTraceExit(const void *context, int32_t fnNumber,
136                    const char *fmt, va_list args) {
137     (void)context; // suppress compiler warnings about unused variable
138     char        buf[1000];
139     const char *fnName;
140     const char *bogusFnName;
141 
142     gTraceExitCount++;
143 
144     /* Verify that a name is available for the fnNumber passed to us */
145     bogusFnName = utrace_functionName(-1);
146     fnName = utrace_functionName(fnNumber);
147     if (strcmp(fnName, bogusFnName) == 0) {
148         gFnNameError = TRUE;
149     }
150 
151     /* Verify that the format can be used.  */
152     buf[0] = 0;
153     utrace_vformat(buf, sizeof(buf), 0, fmt, args);
154     if (strlen(buf) == 0) {
155         gFnFormatError = TRUE;
156     }
157 
158     /* printf("%s() %s\n", fnName, buf); */
159 
160 }
161 
testTraceData(const void * context,int32_t fnNumber,int32_t level,const char * fmt,va_list args)162 static void U_CALLCONV testTraceData(const void *context, int32_t fnNumber, int32_t level,
163                    const char *fmt, va_list args) {
164     // suppress compiler warnings about unused variables
165     (void)context;
166     (void)level;
167     char        buf[1000];
168     const char *fnName;
169     const char *bogusFnName;
170 
171     gTraceDataCount++;
172 
173     /* Verify that a name is available for the fnNumber passed to us */
174     bogusFnName = utrace_functionName(-1);
175     fnName = utrace_functionName(fnNumber);
176     if (strcmp(fnName, bogusFnName) == 0) {
177         gFnNameError = TRUE;
178     }
179 
180     /* Verify that the format can be used.  */
181     buf[0] = 0;
182     utrace_vformat(buf, sizeof(buf), 0, fmt, args);
183     if (strlen(buf) == 0) {
184         gFnFormatError = TRUE;
185     }
186 
187     /* printf("  %s()   %s\n", fnName, buf); */
188 }
189 
190 #if !ENABLE_TRACING_ORIG_VAL
pseudo_ucnv_open(const char * name,UErrorCode * err)191 static UConverter * pseudo_ucnv_open(const char *name, UErrorCode * err)
192 {
193     UTRACE_ENTRY_OC(UTRACE_UCNV_LOAD);
194 
195     UTRACE_DATA2(UTRACE_OPEN_CLOSE, "error code is %s for %s", u_errorName(*err), name);
196 
197     UTRACE_EXIT_PTR_STATUS(NULL, *err);
198     return NULL;
199 }
pseudo_ucnv_close(UConverter * cnv)200 static void pseudo_ucnv_close(UConverter * cnv)
201 {
202     UTRACE_ENTRY_OC(UTRACE_UCNV_UNLOAD);
203     UTRACE_DATA1(UTRACE_OPEN_CLOSE, "unload converter %p", cnv);
204     UTRACE_EXIT_VALUE((int32_t)TRUE);
205 }
206 #endif
207 
208 /*
209  *   TestTraceAPI
210  */
TestTraceAPI()211 static void TestTraceAPI() {
212 
213 
214     UTraceEntry   *originalTEntryFunc;
215     UTraceExit    *originalTExitFunc;
216     UTraceData    *originalTDataFunc;
217     const void    *originalTContext;
218     int32_t        originalLevel;
219 
220     /*
221      * Save the original tracing state so that we can restore it after the test.
222      */
223     utrace_getFunctions(&originalTContext, &originalTEntryFunc, &originalTExitFunc,
224                         &originalTDataFunc);
225     originalLevel = utrace_getLevel();
226 
227 
228     /* verify that set/get of tracing functions returns what was set.  */
229     {
230         UTraceEntry *e;
231         UTraceExit  *x;
232         UTraceData  *d;
233         const void  *context;
234         const void  *newContext = (const char *)originalTContext + 1;
235 
236         TEST_ASSERT(originalTEntryFunc != testTraceEntry);
237         TEST_ASSERT(originalTExitFunc != testTraceExit);
238         TEST_ASSERT(originalTDataFunc != testTraceData);
239 
240         utrace_setFunctions(newContext, testTraceEntry, testTraceExit, testTraceData);
241         utrace_getFunctions(&context, &e, &x, &d);
242         TEST_ASSERT(e == testTraceEntry);
243         TEST_ASSERT(x == testTraceExit);
244         TEST_ASSERT(d == testTraceData);
245         TEST_ASSERT(context == newContext);
246     }
247 
248     /* verify that set/get level work as a pair, and that the level
249      * identifiers all exist.
250      */
251 
252     {
253         int32_t  level;
254 
255         utrace_setLevel(UTRACE_OFF);
256         level = utrace_getLevel();
257         TEST_ASSERT(level==UTRACE_OFF);
258         utrace_setLevel(UTRACE_VERBOSE);
259         level = utrace_getLevel();
260         TEST_ASSERT(level==UTRACE_VERBOSE);
261         utrace_setLevel(UTRACE_ERROR);
262         utrace_setLevel(UTRACE_WARNING);
263         utrace_setLevel(UTRACE_OPEN_CLOSE);
264         utrace_setLevel(UTRACE_INFO);
265     }
266 
267     /*
268      * Open and close a converter with tracing enabled.
269      *   Verify that our tracing callback functions get called.
270      */
271     {
272         UErrorCode  status = U_ZERO_ERROR;
273         UConverter *cnv;
274 
275         gTraceEntryCount = 0;
276         gTraceExitCount  = 0;
277         gTraceDataCount  = 0;
278         gFnNameError     = FALSE;
279         gFnFormatError   = FALSE;
280         utrace_setLevel(UTRACE_OPEN_CLOSE);
281 #if ENABLE_TRACING_ORIG_VAL
282         cnv = ucnv_open(NULL, &status);
283         TEST_ASSERT(U_SUCCESS(status));
284         ucnv_close(cnv);
285 #else
286         cnv = pseudo_ucnv_open(NULL, &status);
287         TEST_ASSERT(U_SUCCESS(status));
288         pseudo_ucnv_close(cnv);
289 #endif
290         TEST_ASSERT(gTraceEntryCount > 0);
291         TEST_ASSERT(gTraceExitCount  > 0);
292         TEST_ASSERT(gTraceDataCount  > 0);
293         TEST_ASSERT(gFnNameError   == FALSE);
294         TEST_ASSERT(gFnFormatError == FALSE);
295     }
296 
297 
298 
299     /*
300      * trace data formatter operation.
301      */
302     {
303         UChar s1[] = {0x41fe, 0x42, 0x43, 00};
304         const char  *a1[] = {"s1", "s2", "s3"};
305         void  *ptr;
306 
307         test_format("hello, world", 50, 0, "hello, world", __LINE__);
308         test_format("hello, world", 50, 4, "    hello, world", __LINE__);
309         test_format("hello, world", 3, 0,  "hello, world", __LINE__);
310 
311         test_format("a character %c", 50, 0, "a character x", __LINE__, 'x');
312         test_format("a string %s ", 50, 0, "a string hello ", __LINE__, "hello");
313         test_format("uchars %S ", 50, 0, "uchars 41fe 0042 0043 0000  ", __LINE__, s1, -1);
314         test_format("uchars %S ", 50, 0, "uchars 41fe 0042  ", __LINE__, s1, 2);
315 
316         test_format("a byte %b--", 50, 0, "a byte dd--", __LINE__, 0xdd);
317         test_format("a 16 bit val %h", 50, 0, "a 16 bit val 1234", __LINE__, 0x1234);
318         test_format("a 32 bit val %d...", 50, 0, "a 32 bit val 6789abcd...", __LINE__, 0x6789abcd);
319         test_format("a 64 bit val %l", 50, 0, "a 64 bit val 123456780abcdef0"
320             , __LINE__, INT64_C(0x123456780abcdef0));
321 
322         if (sizeof(void *) == 4) {
323             ptr = (void *)0xdeadbeef;
324             test_format("a 32 bit ptr %p", 50, 0, "a 32 bit ptr deadbeef", __LINE__, ptr);
325         } else if (sizeof(void *) == 8) {
326             ptr = (void *) INT64_C(0x1000200030004000);
327             test_format("a 64 bit ptr %p", 50, 0, "a 64 bit ptr 1000200030004000", __LINE__, ptr);
328         } else if (sizeof(void *) == 16) {
329             /* iSeries */
330             union {
331                 int32_t arr[4];
332                 void *ptr;
333             } massiveBigEndianPtr = {{ 0x10002000, 0x30004000, 0x50006000, 0x70008000 }};
334             ptr = massiveBigEndianPtr.ptr;
335             test_format("a 128 bit ptr %p", 50, 0, "a 128 bit ptr 10002000300040005000600070008000", __LINE__, ptr);
336         } else {
337             TEST_ASSERT(FALSE);
338             /*  TODO:  others? */
339         }
340 
341         test_format("%vc", 100, 0, "abc[ffffffff]", __LINE__, "abc", -1);
342         test_format("%vs", 100, 0, "s1\ns2\n[00000002]", __LINE__, a1, 2);
343         test_format("%vs", 100, 4, "    s1\n    s2\n    [00000002]", __LINE__, a1, 2);
344 
345         test_format("%vb", 100, 0, "41 42 43 [00000003]", __LINE__, "\x41\x42\x43", 3);
346 
347         /* Null ptrs for strings, vectors  */
348         test_format("Null string - %s", 50, 0, "Null string - *NULL*", __LINE__, NULL);
349         test_format("Null string - %S", 50, 0, "Null string - *NULL*", __LINE__, NULL, -1);
350         test_format("Null vector - %vc", 50, 0, "Null vector - *NULL* [00000002]", __LINE__, NULL, 2);
351         test_format("Null vector - %vC", 50, 0, "Null vector - *NULL* [00000002]", __LINE__, NULL, 2);
352         test_format("Null vector - %vd", 50, 0, "Null vector - *NULL* [00000002]", __LINE__, NULL, 2);
353 
354     }
355 
356     /*
357      * utrace_format.  Only need a minimal test to see that the function works at all.
358      *                 Full functionality is tested via utrace_vformat.
359      */
360     {
361         char      buf[100];
362         int32_t   x;
363         x = utrace_format(buf, 100, 0, "%s", "Hello, World.");
364         TEST_ASSERT(strcmp(buf, "Hello, World.") == 0);
365         TEST_ASSERT(x == 14);
366     }
367 
368     /*
369      * utrace_functionName.  Just spot-check a couple of them.
370      */
371     {
372         const char   *name;
373         name = utrace_functionName(UTRACE_U_INIT);
374         TEST_ASSERT(strcmp(name, "u_init") == 0);
375         name = utrace_functionName(UTRACE_UCNV_OPEN);
376         TEST_ASSERT(strcmp(name, "ucnv_open") == 0);
377         name = utrace_functionName(UTRACE_UCOL_GET_SORTKEY);
378         TEST_ASSERT(strcmp(name, "ucol_getSortKey") == 0);
379     }
380 
381 
382 
383     /*  Restore the trace function settings to their original values. */
384     utrace_setFunctions(originalTContext, originalTEntryFunc, originalTExitFunc, originalTDataFunc);
385     utrace_setLevel(originalLevel);
386 }
387 
388 
389 
390