pushenv/popenv complete, added path functions. added mode_select test

rt/mode_select/err.txt

@@ -0,0 +1,57 @@
+===========================
+step 1
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing load env_test
+===========================
+===========================
+step 2
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing list
+===========================
+Currently Loaded Modules:
+  1) env_test/1.0
+===========================
+step 3
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing unload env_test
+===========================
+===========================
+step 4
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing list
+===========================
+No modules loaded
+===========================
+step 5
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing load path_test
+===========================
+===========================
+step 6
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing list
+===========================
+Currently Loaded Modules:
+  1) path_test/1.0
+===========================
+step 7
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing unload path_test
+===========================
+===========================
+step 8
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing list
+===========================
+No modules loaded
+===========================
+step 9
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing load mixed_test
+===========================
+===========================
+step 10
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing list
+===========================
+Currently Loaded Modules:
+  1) mixed_test/1.0
+===========================
+step 11
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing unload mixed_test
+===========================
+===========================
+step 12
+lua ProjectDIR/src/lmod.in.lua shell --regression_testing list
+===========================
+No modules loaded

rt/mode_select/mf/Core/dep_both/1.0.lua

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+-- Dependency module for both modes
+setenv("DEP_BOTH_LOADED", "yes") 

rt/mode_select/mf/Core/dep_load/1.0.lua

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+-- Dependency module for load mode
+setenv("DEP_LOAD_LOADED", "yes") 

rt/mode_select/mf/Core/dep_unload/1.0.lua

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+-- Dependency module for unload mode
+setenv("DEP_UNLOAD_LOADED", "yes") 

rt/mode_select/mf/Core/env_test/1.0.lua

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+-- Test module for mode-specific environment operations
+
+-- Test setenv with mode
+setenv{"TEST_VAR_LOAD", "load_only", mode={"load"}}
+setenv{"TEST_VAR_UNLOAD", "unload_only", mode={"unload"}}
+setenv{"TEST_VAR_BOTH", "both_modes", mode={"load", "unload"}}
+setenv("TEST_VAR_NORMAL", "no_mode")  -- Normal setenv for comparison
+
+-- Test pushenv with mode
+pushenv{"STACK_VAR_LOAD", "load_value", mode={"load"}}
+pushenv{"STACK_VAR_UNLOAD", "unload_value", mode={"unload"}}
+pushenv{"STACK_VAR_BOTH", "both_value", mode={"load", "unload"}}
+pushenv("STACK_VAR_NORMAL", "normal_value")  -- Normal pushenv for comparison
+
+-- Test unsetenv with mode
+unsetenv{"UNSET_VAR_LOAD", mode={"load"}}
+unsetenv{"UNSET_VAR_UNLOAD", mode={"unload"}}
+unsetenv{"UNSET_VAR_BOTH", mode={"load", "unload"}}
+unsetenv("UNSET_VAR_NORMAL")  -- Normal unsetenv for comparison 

rt/mode_select/mf/Core/load_test/1.0.lua

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+-- Test module for mode-specific load operations
+
+-- Test load with mode
+load{"dep_load", mode={"load"}}         -- Should only load during load
+load{"dep_unload", mode={"unload"}}     -- Should only load during unload
+load{"dep_both", mode={"load", "unload"}} -- Should load during both operations
+
+-- Set environment variables to track what happened
+setenv("LOAD_TEST_LOADED", "yes") 

rt/mode_select/mf/Core/mixed_test/1.0.lua

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+-- Test module for mixed mode and non-mode operations
+
+-- Test environment and path operations mixed together
+setenv{"MIXED_ENV_LOAD", "env_load", mode={"load"}}
+prepend_path{"MIXED_PATH", "/mixed/bin/load", mode={"load"}}
+
+setenv{"MIXED_ENV_UNLOAD", "env_unload", mode={"unload"}}
+append_path{"MIXED_PATH", "/mixed/bin/unload", mode={"unload"}}
+
+-- Test normal operations mixed with mode operations
+setenv("MIXED_NORMAL_ENV", "normal_env")
+prepend_path{"MIXED_PATH", "/mixed/bin/both", mode={"load", "unload"}}
+
+-- Test pushenv with path operations
+pushenv{"MIXED_STACK", "stack_load", mode={"load"}}
+append_path("MIXED_LIB", "/mixed/lib/normal")
+
+-- Test complex combinations
+setenv{"MIXED_COMPLEX", "complex_load", mode={"load"}}
+prepend_path{"MIXED_COMPLEX_PATH", "/complex/bin", delim=";", priority=100, mode={"load"}}
+pushenv{"MIXED_COMPLEX_STACK", "complex_both", mode={"load", "unload"}}
+
+-- Test error cases
+setenv{"MIXED_ERROR", "error_value", mode={}}  -- Empty mode table
+prepend_path{"MIXED_ERROR_PATH", "/error/bin", mode={"invalid_mode"}}  -- Invalid mode 

rt/mode_select/mf/Core/path_test/1.0.lua

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+-- Test module for mode-specific path operations
+
+-- Test prepend_path with mode
+prepend_path{"PATH", "/test/bin/load", mode={"load"}}
+prepend_path{"PATH", "/test/bin/unload", mode={"unload"}}
+prepend_path{"PATH", "/test/bin/both", mode={"load", "unload"}}
+prepend_path("PATH", "/test/bin/normal")  -- Normal prepend for comparison
+
+-- Test append_path with mode
+append_path{"LD_LIBRARY_PATH", "/test/lib/load", mode={"load"}}
+append_path{"LD_LIBRARY_PATH", "/test/lib/unload", mode={"unload"}}
+append_path{"LD_LIBRARY_PATH", "/test/lib/both", mode={"load", "unload"}}
+append_path("LD_LIBRARY_PATH", "/test/lib/normal")  -- Normal append for comparison
+
+-- Test remove_path with mode
+remove_path{"REMOVE_PATH", "/old/bin/load", mode={"load"}}
+remove_path{"REMOVE_PATH", "/old/bin/unload", mode={"unload"}}
+remove_path{"REMOVE_PATH", "/old/bin/both", mode={"load", "unload"}}
+remove_path("REMOVE_PATH", "/old/bin/normal")  -- Normal remove for comparison
+
+-- Test with delimiters and priorities
+prepend_path{"CUSTOM_PATH", "/custom/path", delim=";", priority=100, mode={"load"}}
+append_path{"CUSTOM_LIB", "/custom/lib", delim=":", priority=50, mode={"unload"}} 

rt/mode_select/mode_select.tdesc

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+-- -*- lua -*-
+local testName = "mode_select"
+
+testdescript = {
+   owner   = "mcawood",
+   product = "modules",
+   description = [[
+     Test mode-specific functionality for various Lmod functions:
+     - Environment operations (setenv, pushenv, unsetenv)
+     - Path operations (prepend_path, append_path, remove_path)
+     Tests include:
+     1. Basic mode-specific operations
+     2. Mixed mode and non-mode operations
+     3. Error cases and edge conditions
+   ]],
+   keywords = {testName},
+
+   active = 1,
+   testName = testName,
+   job_submit_method = "INTERACTIVE",
+
+   runScript = [[
+
+     . $(projectDir)/rt/common_funcs.sh
+
+     unsetMT
+     initStdEnvVars
+     MODULEPATH_ROOT=$(testDir)/mf;       export MODULEPATH_ROOT
+     MODULEPATH=$(testDir)/mf/Core;       export MODULEPATH
+
+     remove_generated_lmod_files
+
+     cp $(projectDir)/init/lmodrc.lua .lmodrc.lua
+
+     mkdir -p $HOME/.cache/lmod
+     buildSpiderT $MODULEPATH > $HOME/.cache/lmod/spiderT.lua
+
+     # Test Environment Variable Operations
+     runLmod load env_test              # 1 (Test mode-specific setenv)
+     runLmod list                       # 2 (Verify environment variables)
+     runLmod unload env_test           # 3 (Test unload behavior)
+     runLmod list                       # 4 (Verify cleanup)
+
+     # Test Path Operations
+     runLmod load path_test            # 5 (Test mode-specific path operations)
+     runLmod list                       # 6 (Verify path modifications)
+     runLmod unload path_test          # 7 (Test path cleanup)
+     runLmod list                       # 8 (Verify path restoration)
+
+     # Test Mixed Operations
+     runLmod load mixed_test           # 9 (Test mixed mode and non-mode operations)
+     runLmod list                       # 10 (Verify mixed state)
+     runLmod unload mixed_test         # 11 (Test mixed cleanup)
+     runLmod list                       # 12 (Verify final state)
+
+     # Test Load/Unload Operations
+     runLmod load load_test            # 13 (Test mode-specific module loading)
+     runLmod list                       # 14 (Verify loaded modules)
+     runLmod unload load_test          # 15 (Test mode-specific module unloading)
+     runLmod list                       # 16 (Verify final state)
+
+     HOME=$ORIG_HOME
+
+     cat _stdout.[0-9][0-9][0-9] > _stdout.orig
+     joinBase64Results  -bash  _stdout.orig _stdout.new
+     cleanUp _stdout.new out.txt
+
+     cat _stderr.[0-9][0-9][0-9] > _stderr.orig
+     cleanUp _stderr.orig err.txt
+
+     rm -f results.csv
+     wrapperDiff --csv results.csv $(testDir)/out.txt out.txt
+     wrapperDiff --csv results.csv $(testDir)/err.txt err.txt
+     testFinish -r $(resultFn) -t $(runtimeFn) results.csv
+   ]],
+
+   blessScript = [[
+         # perform what is needed
+   ]],
+
+   tests = {
+      { id='t1'},
+   },
+}