147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
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#include "ctest.h"
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#include <stdio.h>
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#include <linux/input.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <glob.h>
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#include "../getch.h"
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#define EV_PRESSED 1
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#define EV_RELEASED 0
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inline static void writeToEventDevice(__u16 code)
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{
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glob_t globResult;
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glob("/dev/input/by-path/*-event-kbd", GLOB_NOSORT, NULL, &globResult);
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if(globResult.gl_pathc == 0) {
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fprintf(stderr, "Failed to find input device.");
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globfree(&globResult);
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exit(EXIT_FAILURE);
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}
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char device[strlen(globResult.gl_pathv[0])];
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strncpy(device, globResult.gl_pathv[0], strlen(globResult.gl_pathv[0]) + 1);
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globfree(&globResult);
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struct input_event inputEvent[2];
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int eventDevice = open(device, O_WRONLY);
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if(eventDevice == -1) {
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perror("open");
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exit(EXIT_FAILURE);
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}
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for(int i=0; i<2;i++) {
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gettimeofday(&inputEvent[i].time, NULL);
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inputEvent[i].type = EV_KEY;
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inputEvent[i].code = code;
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inputEvent[i].value = i ? EV_RELEASED : EV_PRESSED;
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}
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write(eventDevice, &inputEvent, sizeof(inputEvent));
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close(eventDevice);
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sync();
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fflush(NULL);
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}
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inline static void reverseString(char * str)
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{
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if (str)
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{
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char * end = str + strlen(str) - 1;
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// swap the values in the two given variables
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// XXX: fails when a and b refer to same memory location
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# define XOR_SWAP(a,b) do\
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{\
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(a) ^= (b);\
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(b) ^= (a);\
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(a) ^= (b);\
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} while (0)
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// walk inwards from both ends of the string,
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// swapping until we get to the middle
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while (str < end)
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{
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XOR_SWAP(*str, *end);
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str++;
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end--;
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}
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# undef XOR_SWAP
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}
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}
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inline static void writeStringToStdin(char * string)
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{
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size_t stringLength = strlen(string);
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char reversed[stringLength];
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strncpy(reversed, string, stringLength);
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reverseString(reversed);
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for(int i = 0; i<stringLength;i++) {
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ungetc(reversed[i], stdin);
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}
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}
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static char *asciiCodes[3] = {
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"\x1bOPP",
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"\x1b[H",
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"\x1bOJ"
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};
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static int scanCodes[3] = { KEY_F1, KEY_HOME, KEY_F5 };
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CTEST(getchTests, simpleGetchSetReturn_q)
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{
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int ungetch = _ungetch('q');
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int getch = _getch();
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ASSERT_EQUAL(getch, ungetch);
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ASSERT_EQUAL(113, ungetch);
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ASSERT_EQUAL(113, getch);
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}
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CTEST(getchTests, SpecialKey)
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{
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writeStringToStdin(asciiCodes[0]);
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writeToEventDevice(scanCodes[0]);
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int key = _getch();
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int code = _getch();
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ASSERT_EQUAL(0, key);
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ASSERT_EQUAL(scanCodes[0], code);
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}
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CTEST(specialKeyTests, Home)
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{
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writeStringToStdin(asciiCodes[1]);
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writeToEventDevice(KEY_HOME);
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int key = _getch();
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int code = _getch();
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ASSERT_EQUAL(224, key);
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ASSERT_EQUAL(KEY_KP7, code);
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}
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CTEST(escapeReturnsTest, Esc)
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{
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ungetc(27, stdin);
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writeToEventDevice(KEY_ESC);
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int key = _getch();
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ASSERT_EQUAL(27, key);
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}
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