Add unit tests

1 files changed, 309 insertions, 0 deletions

diff --git a/tests/cu-test/CuTest.c b/tests/cu-test/CuTest.c
new file mode 100644
index 0000000..86fa3ea
--- /dev/null
+++ b/tests/cu-test/CuTest.c
@@ -0,0 +1,309 @@
+#include <assert.h>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include "CuTest.h"
+
+/*-------------------------------------------------------------------------*
+ * CuStr
+ *-------------------------------------------------------------------------*/
+
+char* CuStrAlloc(int size)
+{
+	char* newStr = (char*) malloc( sizeof(char) * (size) );
+	return newStr;
+}
+
+char* CuStrCopy(const char* old)
+{
+	int len = strlen(old);
+	char* newStr = CuStrAlloc(len + 1);
+	strcpy(newStr, old);
+	return newStr;
+}
+
+/*-------------------------------------------------------------------------*
+ * CuString
+ *-------------------------------------------------------------------------*/
+
+void CuStringInit(CuString* str)
+{
+	str->length = 0;
+	str->size = STRING_MAX;
+	str->buffer = (char*) malloc(sizeof(char) * str->size);
+	str->buffer[0] = '\0';
+}
+
+CuString* CuStringNew(void)
+{
+	CuString* str = (CuString*) malloc(sizeof(CuString));
+	str->length = 0;
+	str->size = STRING_MAX;
+	str->buffer = (char*) malloc(sizeof(char) * str->size);
+	str->buffer[0] = '\0';
+	return str;
+}
+
+void CuStringResize(CuString* str, int newSize)
+{
+	str->buffer = (char*) realloc(str->buffer, sizeof(char) * newSize);
+	str->size = newSize;
+}
+
+void CuStringAppend(CuString* str, const char* text)
+{
+	int length;
+
+	if (text == NULL) {
+		text = "NULL";
+	}
+
+	length = strlen(text);
+	if (str->length + length + 1 >= str->size)
+		CuStringResize(str, str->length + length + 1 + STRING_INC);
+	str->length += length;
+	strcat(str->buffer, text);
+}
+
+void CuStringAppendChar(CuString* str, char ch)
+{
+	char text[2];
+	text[0] = ch;
+	text[1] = '\0';
+	CuStringAppend(str, text);
+}
+
+void CuStringAppendFormat(CuString* str, const char* format, ...)
+{
+	va_list argp;
+	char buf[HUGE_STRING_LEN];
+	va_start(argp, format);
+	vsprintf(buf, format, argp);
+	va_end(argp);
+	CuStringAppend(str, buf);
+}
+
+void CuStringInsert(CuString* str, const char* text, int pos)
+{
+	int length = strlen(text);
+	if (pos > str->length)
+		pos = str->length;
+	if (str->length + length + 1 >= str->size)
+		CuStringResize(str, str->length + length + 1 + STRING_INC);
+	memmove(str->buffer + pos + length, str->buffer + pos, (str->length - pos) + 1);
+	str->length += length;
+	memcpy(str->buffer + pos, text, length);
+}
+
+/*-------------------------------------------------------------------------*
+ * CuTest
+ *-------------------------------------------------------------------------*/
+
+void CuTestInit(CuTest* t, const char* name, TestFunction function)
+{
+	t->name = CuStrCopy(name);
+	t->failed = 0;
+	t->ran = 0;
+	t->message = NULL;
+	t->function = function;
+	t->jumpBuf = NULL;
+}
+
+CuTest* CuTestNew(const char* name, TestFunction function)
+{
+	CuTest* tc = CU_ALLOC(CuTest);
+	CuTestInit(tc, name, function);
+	return tc;
+}
+
+void CuTestRun(CuTest* tc)
+{
+	jmp_buf buf;
+	tc->jumpBuf = &buf;
+	if (setjmp(buf) == 0)
+	{
+		tc->ran = 1;
+		(tc->function)(tc);
+	}
+	tc->jumpBuf = 0;
+}
+
+static void CuFailInternal(CuTest* tc, const char* file, int line, CuString* string)
+{
+	char buf[HUGE_STRING_LEN];
+
+	sprintf(buf, "%s:%d: ", file, line);
+	CuStringInsert(string, buf, 0);
+
+	tc->failed = 1;
+	tc->message = string->buffer;
+	if (tc->jumpBuf != 0) longjmp(*(tc->jumpBuf), 0);
+}
+
+void CuFail_Line(CuTest* tc, const char* file, int line, const char* message2, const char* message)
+{
+	CuString string;
+
+	CuStringInit(&string);
+	if (message2 != NULL)
+	{
+		CuStringAppend(&string, message2);
+		CuStringAppend(&string, ": ");
+	}
+	CuStringAppend(&string, message);
+	CuFailInternal(tc, file, line, &string);
+}
+
+void CuAssert_Line(CuTest* tc, const char* file, int line, const char* message, int condition)
+{
+	if (condition) return;
+	CuFail_Line(tc, file, line, NULL, message);
+}
+
+void CuAssertStrEquals_LineMsg(CuTest* tc, const char* file, int line, const char* message,
+	const char* expected, const char* actual)
+{
+	CuString string;
+	if ((expected == NULL && actual == NULL) ||
+	    (expected != NULL && actual != NULL &&
+	     strcmp(expected, actual) == 0))
+	{
+		return;
+	}
+
+	CuStringInit(&string);
+	if (message != NULL)
+	{
+		CuStringAppend(&string, message);
+		CuStringAppend(&string, ": ");
+	}
+	CuStringAppend(&string, "expected <");
+	CuStringAppend(&string, expected);
+	CuStringAppend(&string, "> but was <");
+	CuStringAppend(&string, actual);
+	CuStringAppend(&string, ">");
+	CuFailInternal(tc, file, line, &string);
+}
+
+void CuAssertIntEquals_LineMsg(CuTest* tc, const char* file, int line, const char* message,
+	int expected, int actual)
+{
+	char buf[STRING_MAX];
+	if (expected == actual) return;
+	sprintf(buf, "expected <%d> but was <%d>", expected, actual);
+	CuFail_Line(tc, file, line, message, buf);
+}
+
+void CuAssertDblEquals_LineMsg(CuTest* tc, const char* file, int line, const char* message,
+	double expected, double actual, double delta)
+{
+	char buf[STRING_MAX];
+	if (fabs(expected - actual) <= delta) return;
+	sprintf(buf, "expected <%lf> but was <%lf>", expected, actual);
+	CuFail_Line(tc, file, line, message, buf);
+}
+
+void CuAssertPtrEquals_LineMsg(CuTest* tc, const char* file, int line, const char* message,
+	void* expected, void* actual)
+{
+	char buf[STRING_MAX];
+	if (expected == actual) return;
+	sprintf(buf, "expected pointer <0x%p> but was <0x%p>", expected, actual);
+	CuFail_Line(tc, file, line, message, buf);
+}
+
+
+/*-------------------------------------------------------------------------*
+ * CuSuite
+ *-------------------------------------------------------------------------*/
+
+void CuSuiteInit(CuSuite* testSuite)
+{
+	testSuite->count = 0;
+	testSuite->failCount = 0;
+}
+
+CuSuite* CuSuiteNew(void)
+{
+	CuSuite* testSuite = CU_ALLOC(CuSuite);
+	CuSuiteInit(testSuite);
+	return testSuite;
+}
+
+void CuSuiteAdd(CuSuite* testSuite, CuTest *testCase)
+{
+	assert(testSuite->count < MAX_TEST_CASES);
+	testSuite->list[testSuite->count] = testCase;
+	testSuite->count++;
+}
+
+void CuSuiteAddSuite(CuSuite* testSuite, CuSuite* testSuite2)
+{
+	int i;
+	for (i = 0 ; i < testSuite2->count ; ++i)
+	{
+		CuTest* testCase = testSuite2->list[i];
+		CuSuiteAdd(testSuite, testCase);
+	}
+}
+
+void CuSuiteRun(CuSuite* testSuite)
+{
+	int i;
+	for (i = 0 ; i < testSuite->count ; ++i)
+	{
+		CuTest* testCase = testSuite->list[i];
+		CuTestRun(testCase);
+		if (testCase->failed) { testSuite->failCount += 1; }
+	}
+}
+
+void CuSuiteSummary(CuSuite* testSuite, CuString* summary)
+{
+	int i;
+	for (i = 0 ; i < testSuite->count ; ++i)
+	{
+		CuTest* testCase = testSuite->list[i];
+		CuStringAppend(summary, testCase->failed ? "F" : ".");
+	}
+	CuStringAppend(summary, "\n\n");
+}
+
+void CuSuiteDetails(CuSuite* testSuite, CuString* details)
+{
+	int i;
+	int failCount = 0;
+
+	if (testSuite->failCount == 0)
+	{
+		int passCount = testSuite->count - testSuite->failCount;
+		const char* testWord = passCount == 1 ? "test" : "tests";
+		CuStringAppendFormat(details, "OK (%d %s)\n", passCount, testWord);
+	}
+	else
+	{
+		if (testSuite->failCount == 1)
+			CuStringAppend(details, "There was 1 failure:\n");
+		else
+			CuStringAppendFormat(details, "There were %d failures:\n", testSuite->failCount);
+
+		for (i = 0 ; i < testSuite->count ; ++i)
+		{
+			CuTest* testCase = testSuite->list[i];
+			if (testCase->failed)
+			{
+				failCount++;
+				CuStringAppendFormat(details, "%d) %s: %s\n",
+					failCount, testCase->name, testCase->message);
+			}
+		}
+		CuStringAppend(details, "\n!!!FAILURES!!!\n");
+
+		CuStringAppendFormat(details, "Runs: %d ",   testSuite->count);
+		CuStringAppendFormat(details, "Passes: %d ", testSuite->count - testSuite->failCount);
+		CuStringAppendFormat(details, "Fails: %d\n",  testSuite->failCount);
+	}
+}