From 781ef98e5441bf6aa12c50657bf2161953a79858 Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 周二, 14 4月 2015 05:38:38 +0800
Subject: [PATCH] Add command handling tests, resolve bugs

---
 libscpi/test/test_parser.c |  225 +++++++++++++++++++++++++++++++++++++++++++++----------
 1 files changed, 183 insertions(+), 42 deletions(-)

diff --git a/libscpi/test/test_parser.c b/libscpi/test/test_parser.c
index 33e51f4..5c9b117 100644
--- a/libscpi/test/test_parser.c
+++ b/libscpi/test/test_parser.c
@@ -15,62 +15,99 @@
 
 static const scpi_command_t scpi_commands[] = {
     /* IEEE Mandated Commands (SCPI std V1999.0 4.1.1) */
-//    { .pattern = "*CLS", .callback = SCPI_CoreCls,},
-//    { .pattern = "*ESE", .callback = SCPI_CoreEse,},
-//    { .pattern = "*ESE?", .callback = SCPI_CoreEseQ,},
-//    { .pattern = "*ESR?", .callback = SCPI_CoreEsrQ,},
-//    { .pattern = "*IDN?", .callback = SCPI_CoreIdnQ,},
-//    { .pattern = "*OPC", .callback = SCPI_CoreOpc,},
-//    { .pattern = "*OPC?", .callback = SCPI_CoreOpcQ,},
-//    { .pattern = "*RST", .callback = SCPI_CoreRst,},
-//    { .pattern = "*SRE", .callback = SCPI_CoreSre,},
-//    { .pattern = "*SRE?", .callback = SCPI_CoreSreQ,},
-//    { .pattern = "*STB?", .callback = SCPI_CoreStbQ,},
-//    { .pattern = "*TST?", .callback = SCPI_CoreTstQ,},
-//    { .pattern = "*WAI", .callback = SCPI_CoreWai,},
+    { .pattern = "*CLS", .callback = SCPI_CoreCls,},
+    { .pattern = "*ESE", .callback = SCPI_CoreEse,},
+    { .pattern = "*ESE?", .callback = SCPI_CoreEseQ,},
+    { .pattern = "*ESR?", .callback = SCPI_CoreEsrQ,},
+    { .pattern = "*IDN?", .callback = SCPI_CoreIdnQ,},
+    { .pattern = "*OPC", .callback = SCPI_CoreOpc,},
+    { .pattern = "*OPC?", .callback = SCPI_CoreOpcQ,},
+    { .pattern = "*RST", .callback = SCPI_CoreRst,},
+    { .pattern = "*SRE", .callback = SCPI_CoreSre,},
+    { .pattern = "*SRE?", .callback = SCPI_CoreSreQ,},
+    { .pattern = "*STB?", .callback = SCPI_CoreStbQ,},
+    { .pattern = "*TST?", .callback = SCPI_CoreTstQ,},
+    { .pattern = "*WAI", .callback = SCPI_CoreWai,},
 
     /* Required SCPI commands (SCPI std V1999.0 4.2.1) */
-//    {.pattern = "SYSTem:ERRor[:NEXT]?", .callback = SCPI_SystemErrorNextQ,},
-//    {.pattern = "SYSTem:ERRor:COUNt?", .callback = SCPI_SystemErrorCountQ,},
-//    {.pattern = "SYSTem:VERSion?", .callback = SCPI_SystemVersionQ,},
+    { .pattern = "SYSTem:ERRor[:NEXT]?", .callback = SCPI_SystemErrorNextQ,},
+    { .pattern = "SYSTem:ERRor:COUNt?", .callback = SCPI_SystemErrorCountQ,},
+    { .pattern = "SYSTem:VERSion?", .callback = SCPI_SystemVersionQ,},
 
-//    {.pattern = "STATus:QUEStionable[:EVENt]?", .callback = SCPI_StatusQuestionableEventQ,},
-//    {.pattern = "STATus:QUEStionable:ENABle", .callback = SCPI_StatusQuestionableEnable,},
-//    {.pattern = "STATus:QUEStionable:ENABle?", .callback = SCPI_StatusQuestionableEnableQ,},
+    { .pattern = "STATus:QUEStionable[:EVENt]?", .callback = SCPI_StatusQuestionableEventQ,},
+    { .pattern = "STATus:QUEStionable:ENABle", .callback = SCPI_StatusQuestionableEnable,},
+    { .pattern = "STATus:QUEStionable:ENABle?", .callback = SCPI_StatusQuestionableEnableQ,},
 
-//    {.pattern = "STATus:PRESet", .callback = SCPI_StatusPreset,},
-
+    { .pattern = "STATus:PRESet", .callback = SCPI_StatusPreset,},
+    
     SCPI_CMD_LIST_END
 };
 
-size_t SCPI_Write(scpi_t * context, const char * data, size_t len)
-{
-    (void)context;
-    (void)data;
-    (void)len;    
+
+char output_buffer[1024];
+size_t output_buffer_pos = 0;
+
+int_fast16_t err_buffer[128];
+size_t err_buffer_pos = 0;
+
+static void output_buffer_clear(void) {
+    output_buffer[0] = '\0';
+    output_buffer_pos = 0;
 }
 
-int SCPI_Error(scpi_t * context, int_fast16_t err)
-{
-    (void)context;
-    (void)err;    
+static size_t output_buffer_write(const char * data, size_t len) {
+    memcpy(output_buffer + output_buffer_pos, data, len);
+    output_buffer_pos += len;
+    output_buffer[output_buffer_pos] = '\0';
 }
 
-scpi_result_t SCPI_Control(scpi_t * context, scpi_ctrl_name_t ctrl, scpi_reg_val_t val)
-{
-    (void)context;
-    (void)ctrl;
-    (void)val;    
+scpi_t scpi_context;
+static void error_buffer_clear(void) {
+    err_buffer[0] = '\0';
+    err_buffer_pos = 0;
+
+    SCPI_EventClear(&scpi_context);
+    SCPI_ErrorClear(&scpi_context);
 }
 
-scpi_result_t SCPI_Reset(scpi_t * context)
-{
-    (void)context;
+static void error_buffer_add(int_fast16_t err) {
+    err_buffer[err_buffer_pos] = err;
+    err_buffer_pos++;
 }
 
-scpi_result_t SCPI_Flush(scpi_t * context)
-{
-    (void)context;
+
+static size_t SCPI_Write(scpi_t * context, const char * data, size_t len) {
+    (void) context;
+    return output_buffer_write(data, len);
+}
+
+static scpi_result_t SCPI_Flush(scpi_t * context) {
+    return SCPI_RES_OK;
+}
+
+static int SCPI_Error(scpi_t * context, int_fast16_t err) {
+    (void) context;
+
+    error_buffer_add(err);
+
+    return 0;
+}
+
+scpi_reg_val_t srq_val = 0;
+static scpi_result_t SCPI_Control(scpi_t * context, scpi_ctrl_name_t ctrl, scpi_reg_val_t val) {
+    if (SCPI_CTRL_SRQ == ctrl) {
+        srq_val = val;
+    } else {
+        fprintf(stderr, "**CTRL %02x: 0x%X (%d)\r\n", ctrl, val, val);
+    }
+    return SCPI_RES_OK;
+}
+
+scpi_bool_t RST_executed = FALSE;
+
+static scpi_result_t SCPI_Reset(scpi_t * context) {
+    RST_executed = TRUE;
+    return SCPI_RES_OK;
 }
 
 static scpi_interface_t scpi_interface = {
@@ -96,7 +133,7 @@
     .interface = &scpi_interface,
     .registers = scpi_regs,
     .units = scpi_units_def,
-    .idn = {"MANUFACTURE", "INSTR2013", NULL, "01-02"},
+    .idn = {"MA", "IN", NULL, "VER"},
 };
 
 int init_suite(void) {
@@ -109,6 +146,107 @@
     return 0;
 }
 
+void testCommandsHandling(void) {
+#define TEST_INPUT(data, output) {                              \
+    SCPI_Input(&scpi_context, data, strlen(data));              \
+    CU_ASSERT_STRING_EQUAL(output, output_buffer);              \
+}
+    output_buffer_clear();
+    error_buffer_clear();
+
+    /* Test single command */
+    TEST_INPUT("*IDN?\r\n", "MA,IN,0,VER\r\n");
+    output_buffer_clear();
+
+    /* Test multiple commands in input buffer */
+    TEST_INPUT("*IDN?\r\n*IDN?\r\n*IDN?\r\n*IDN?\r\n", "MA,IN,0,VER\r\nMA,IN,0,VER\r\nMA,IN,0,VER\r\nMA,IN,0,VER\r\n");
+    output_buffer_clear();
+
+    /* Test one command in multiple buffers */
+    TEST_INPUT("*IDN?", "");
+    TEST_INPUT("\r\n", "MA,IN,0,VER\r\n");
+    output_buffer_clear();
+
+    /* Test input "timeout" - input with length == 0 */
+    TEST_INPUT("*IDN?", "");
+    TEST_INPUT("", "MA,IN,0,VER\r\n");
+    output_buffer_clear();
+    
+    CU_ASSERT_EQUAL(err_buffer_pos, 0);
+    error_buffer_clear();
+    
+    // TODO: Compound commands A:B;C -> A:B; A:C
+}
+
+void testErrorHandling(void) {
+    output_buffer_clear();
+    error_buffer_clear();
+
+#define TEST_ERROR(data, output, err_num) {                     \
+    SCPI_Input(&scpi_context, data, strlen(data));              \
+    CU_ASSERT_STRING_EQUAL(output, output_buffer);              \
+    error_buffer_clear();                                       \
+}
+
+    TEST_ERROR("*IDN?\r\n", "MA,IN,0,VER\r\n", 0);
+    output_buffer_clear();
+    TEST_ERROR("IDN?\r\n", "", SCPI_ERROR_UNDEFINED_HEADER);
+    TEST_ERROR("*ESE\r\n", "", SCPI_ERROR_MISSING_PARAMETER);
+    TEST_ERROR("*IDN? 12\r\n", "MA,IN,0,VER\r\n", SCPI_ERROR_PARAMETER_NOT_ALLOWED);
+    output_buffer_clear();
+
+    // TODO: SCPI_ERROR_INVALID_SEPARATOR
+    // TODO: SCPI_ERROR_INVALID_SUFFIX
+    // TODO: SCPI_ERROR_SUFFIX_NOT_ALLOWED
+    // TODO: SCPI_ERROR_EXECUTION_ERROR
+    // TODO: SCPI_ERROR_ILLEGAL_PARAMETER_VALUE
+}
+
+void testIEEE4882(void) {
+#define TEST_IEEE4882(data, output) {                           \
+    SCPI_Input(&scpi_context, data, strlen(data));              \
+    CU_ASSERT_STRING_EQUAL(output, output_buffer);              \
+    output_buffer_clear();                                      \
+}
+
+    output_buffer_clear();
+    error_buffer_clear();
+
+    TEST_IEEE4882("*CLS\r\n", "");
+    TEST_IEEE4882("*ESE #H20\r\n", "");
+    TEST_IEEE4882("*ESE?\r\n", "32\r\n");
+    TEST_IEEE4882("*ESR?\r\n", "0\r\n");
+    TEST_IEEE4882("*IDN?\r\n", "MA,IN,0,VER\r\n");
+    TEST_IEEE4882("*OPC\r\n", "");
+    TEST_IEEE4882("*OPC?\r\n", "1\r\n");
+
+    TEST_IEEE4882("*SRE #HFF\r\n", "");
+    TEST_IEEE4882("*SRE?\r\n", "255\r\n");
+    TEST_IEEE4882("*STB?\r\n", "0\r\n");
+    TEST_IEEE4882("*ESR?\r\n", "1\r\n");
+    
+    srq_val = 0;
+    TEST_IEEE4882("ABCD\r\n", ""); /* "Undefined header" cause command error */
+    CU_ASSERT_EQUAL(srq_val, 96); /* value of STB as service request */
+    TEST_IEEE4882("*STB?\r\n", "96\r\n"); /* Event status register + Service request */
+    TEST_IEEE4882("*ESR?\r\n", "32\r\n"); /* Command error */
+
+    TEST_IEEE4882("*STB?\r\n", "0\r\n");
+    TEST_IEEE4882("*ESR?\r\n", "0\r\n");
+    
+    TEST_IEEE4882("SYST:ERR:NEXT?\r\n", "-113,\"Undefined header\"\r\n");
+    TEST_IEEE4882("SYST:ERR:NEXT?\r\n", "0,\"No error\"\r\n");
+    
+    RST_executed = FALSE;
+    TEST_IEEE4882("*RST\r\n", "");
+    CU_ASSERT_EQUAL(RST_executed, TRUE);
+
+    TEST_IEEE4882("*TST?\r\n", "0\r\n");
+    
+    TEST_IEEE4882("*WAI\r\n", "");
+
+    TEST_IEEE4882("SYSTem:VERSion?\r\n", "1999.0\r\n");
+}
 
 #define TEST_ParamInt(data, mandatory, expected_value, expected_result, expected_error_code) \
 {                                                                                       \
@@ -230,6 +368,9 @@
     if ((NULL == CU_add_test(pSuite, "SCPI_ParamInt", testSCPI_ParamInt))
             || (NULL == CU_add_test(pSuite, "SCPI_ParamDouble", testSCPI_ParamDouble))
             || (NULL == CU_add_test(pSuite, "SCPI_ParamCharacters", testSCPI_ParamCharacters))
+	    || (NULL == CU_add_test(pSuite, "Commands handling", testCommandsHandling))
+	    || (NULL == CU_add_test(pSuite, "Error handling", testErrorHandling))
+	    || (NULL == CU_add_test(pSuite, "IEEE 488.2 Mandatory commands", testIEEE4882))
             ) {
         CU_cleanup_registry();
         return CU_get_error();

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