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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================
+**
+** Source: test1.c
+**
+** Purpose: Test for SetEnvironmentVariableA() function. Set an
+** environment variable and check to ensure success was returned. Then
+** get the environment variable and compare to the correct value. Also, check
+** that calling the function again, resets the variable properly. And that
+** calling with NULL deletes the variable.
+**
+** Depends:
+** GetEnvironmentVariable
+** memcmp
+** memset
+** strlen
+**
+**
+**=========================================================*/
+
+#include <palsuite.h>
+#define BUF_SIZE 128
+
+int __cdecl main(int argc, char *argv[])
+{
+
+ /* Define some buffers needed for the function */
+ char* VariableBuffer = "PALTEST";
+ char* ValueBuffer = "Testing";
+ char* SecondValueBuffer = "SecondTest";
+ char NewValue[BUF_SIZE];
+ int SetResult = 0;
+
+ /*
+ * Initialize the PAL and return FAILURE if this fails
+ */
+
+ if(0 != (PAL_Initialize(argc, argv)))
+ {
+ return FAIL;
+ }
+
+
+
+ /*
+ Test #1
+ =======
+ */
+
+ SetResult = SetEnvironmentVariable(VariableBuffer,
+ ValueBuffer);
+
+ /* If result is 0, the SetEnviron function failed */
+ if(SetResult == 0)
+ {
+ Fail("ERROR: SetEnvironmentVariable returned 0, which indicates that "
+ "it failed, even though it should have succeeded in setting the "
+ "variable PALTEST.\n");
+ }
+
+ memset(NewValue,0,BUF_SIZE);
+
+ /* Grab the Environment variable we just set */
+ if(GetEnvironmentVariable(VariableBuffer,NewValue,BUF_SIZE) <= 0)
+ {
+ Fail("ERROR: GetEnvironmentVariable returned 0 or less, which "
+ "indicates that no value was read in from the given variable.");
+ }
+
+ /* Make sure that the value put into NewValue was indeed the environment
+ variable we set.
+ */
+
+ if(memcmp(NewValue,ValueBuffer,strlen(ValueBuffer)+1) != 0)
+ {
+ Fail("ERROR: When retrieving the variable that was just set, a "
+ "difference was found. Instead of the value being '%s' it "
+ "was instead '%s'.\n",ValueBuffer,NewValue);
+ }
+
+
+
+ /*
+ Test #2
+ =======
+ */
+
+ /* If we set the same environment variable with a different value, the
+ old value should be replaced.
+ */
+
+ SetResult = SetEnvironmentVariable(VariableBuffer,
+ SecondValueBuffer);
+
+ /* If result is 0, the SetEnviron function failed */
+ if(SetResult == 0)
+ {
+ Fail("ERROR: SetEnvironmentVariable returned 0, which indicates that "
+ "it failed, even though it should have succeeded in re-setting "
+ "the variable PALTEST.\n");
+ }
+
+ memset(NewValue,0,BUF_SIZE);
+
+ /* Grab the Environment variable we just set */
+ if(GetEnvironmentVariable(VariableBuffer,NewValue,BUF_SIZE) <= 0)
+ {
+ Fail("ERROR: GetEnvironmentVariable returned 0 or less, which "
+ "indicates that no value was read in from the given variable.");
+ }
+
+ /* Make sure that the value put into NewValue was indeed the environment
+ variable we set.
+ */
+
+ if(memcmp(NewValue,SecondValueBuffer,strlen(SecondValueBuffer)+1) != 0)
+ {
+ Fail("ERROR: When retrieving the variable that was just set, a "
+ "difference was found. Instead of the value being '%s' it "
+ "was instead '%s'.\n",SecondValueBuffer,NewValue);
+ }
+
+
+
+ /*
+ Test #3
+ =======
+ */
+
+ /* Finally, set this variable with NULL, which should delete it from the
+ current environment.
+ */
+
+ SetResult = SetEnvironmentVariable(VariableBuffer, NULL);
+
+ /* If result is 0, the SetEnviron function failed */
+ if(SetResult == 0)
+ {
+ Fail("ERROR: SetEnvironmentVariable returned 0, which indicates that "
+ "it failed, even though it should have succeeded in deleting "
+ "the variable PALTEST.\n");
+ }
+
+ memset(NewValue,0,BUF_SIZE);
+
+ /* Grab the Environment variable we just set, ensure that it's
+ empty now.
+ */
+ if(GetEnvironmentVariable(VariableBuffer,NewValue,BUF_SIZE) != 0)
+ {
+ Fail("ERROR: GetEnvironmentVariable returned a non-zero value, "
+ "even though the environment variable which was checked should "
+ "have been empty.");
+ }
+
+
+ /*
+ Clean Up
+ */
+ PAL_Terminate();
+ return PASS;
+}
+
+
+