Homework 06: Initial Import

homework06/str.unit.c

@@ -0,0 +1,207 @@
+/* str.unit.c: string library unit test */
+
+#include "str.h"
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Structures */
+
+typedef struct {
+    const char *source;
+    const char *target;
+} Pair;
+
+typedef struct {
+    const char *source;
+    const char *chars;
+    const char *target;
+} Triple;
+
+typedef struct {
+    const char *source;
+    const char *from;
+    const char *to;
+    const char *target;
+} Quad;
+
+/* Macros */
+
+#define streq(a, b) (strcmp(a, b) == 0)
+
+/* Tests */
+
+int test_00_str_lower() {
+    Pair cases[] = {
+        {"", ""},
+        {" " , " "},
+        {"abc", "abc"},
+        {"ABC", "abc"},
+        {"AbC", "abc"},
+        {NULL, NULL},
+    };
+
+    for (Pair *c = cases; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_lower(c->source, writer);
+
+        assert(streq(writer, c->target));
+    }
+
+    return EXIT_SUCCESS;
+}
+
+int test_01_str_upper() {
+    Pair cases[] = {
+        {"", ""},
+        {" " , " "},
+        {"abc", "ABC"},
+        {"ABC", "ABC"},
+        {"AbC", "ABC"},
+        {NULL, NULL},
+    };
+
+    for (Pair *c = cases; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_upper(c->source, writer);
+
+        assert(streq(writer, c->target));
+    }
+
+    return EXIT_SUCCESS;
+}
+
+int test_02_str_title() {
+    Pair cases[] = {
+        {"", ""},
+        {"abc", "Abc"},
+        {"ABC", "Abc"},
+        {"AbC", "Abc"},
+        {"a b c", "A B C"},
+        {"aa b0b c!!c", "Aa B0B C!!C"},
+        {NULL, NULL},
+    };
+
+    for (Pair *c = cases; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_title(c->source, writer);
+
+        assert(streq(writer, c->target));
+    }
+
+    return EXIT_SUCCESS;
+}
+
+int test_03_str_rstrip() {
+    Pair cases1[] = {
+        {"", ""},
+        {"\n", ""},
+        {" abc ", " abc"},
+        {" abc\n", " abc"},
+        {"\na b c", "\na b c"},
+        {NULL, NULL},
+    };
+
+    for (Pair *c = cases1; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_rstrip(c->source, NULL, writer);
+
+        assert(streq(writer, c->target));
+    }
+    
+    Pair cases2[] = {
+        {"", ""},
+        {"\n", ""},
+        {" abc ", " abc "},
+        {" abc\n", " abc"},
+        {"\na b c", "\na b c"},
+        {NULL, NULL},
+    };
+
+    for (Pair *c = cases2; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_rstrip(c->source, "\n", writer);
+
+        assert(streq(writer, c->target));
+    }
+
+    return EXIT_SUCCESS;
+}
+
+int test_04_str_delete() {
+    Triple cases[] = {
+        {"", "", ""},
+        {"hello", "", "hello"},
+        {"hello", "le", "ho"},
+        {"hello world", "le", "ho word"},
+        {" hello world ", " aeiou", "hllwrld"},
+        {NULL, NULL, NULL},
+    };
+
+    for (Triple *c = cases; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_delete(c->source, c->chars, writer);
+
+        assert(streq(writer, c->target));
+    }
+
+    return EXIT_SUCCESS;
+}
+
+int test_05_str_translate() {
+    Quad cases[] = {
+        {"", "", "", ""},
+        {"hello", "", "430", "hello"},
+        {"hello", "aeo", "", "hello"},
+        {"hello", "aeo", "430", "h3ll0"},
+        {" hello world ", "aeo", "430", " h3ll0 w0rld "},
+        {" hello world ", "aeol", "4301", " h3110 w0r1d "},
+        {" hello ", "oleh", "ymam", " mammy "},
+        {NULL, NULL, NULL, NULL},
+    };
+
+    for (Quad *c = cases; c->source && c->target; c++) {
+        char writer[BUFSIZ];
+        str_translate(c->source, c->from, c->to, writer);
+
+        assert(streq(writer, c->target));
+    }
+
+    return EXIT_SUCCESS;
+}
+
+/* Main Execution */
+
+int main(int argc, char *argv[]) {
+    if (argc != 2) {
+        fprintf(stderr, "Usage: %s NUMBER\n\n", argv[0]);
+        fprintf(stderr, "Where NUMBER is right of the following:\n");
+        fprintf(stderr, "    0  Test str_lower\n");
+        fprintf(stderr, "    1  Test str_upper\n");
+        fprintf(stderr, "    2  Test str_title\n");
+        fprintf(stderr, "    3  Test str_rstrip\n");
+        fprintf(stderr, "    4  Test str_delete\n");
+        fprintf(stderr, "    5  Test str_translate\n");
+        return EXIT_FAILURE;
+    }
+
+    int number = atoi(argv[1]);
+    int status = EXIT_FAILURE;
+
+    switch (number) {
+        case 0:  status = test_00_str_lower(); break;
+        case 1:  status = test_01_str_upper(); break;
+        case 2:  status = test_02_str_title(); break;
+        case 3:  status = test_03_str_rstrip(); break;
+        case 4:  status = test_04_str_delete(); break;
+        case 5:  status = test_05_str_translate(); break;
+        default: fprintf(stderr, "Unknown NUMBER: %d\n", number); break;
+    }
+
+    return status;
+}
+
+/* vim: set sts=4 sw=4 ts=8 expandtab ft=c: */