add a few more fast tests

test/bats/fast.bats

@@ -5,8 +5,17 @@ load test_helper
 NVM_SRC_DIR="${BATS_TEST_DIRNAME}/../.."
 source "${NVM_SRC_DIR}/nvm.sh"
 
+test_debug() {
+    false # set to 'true' to get setup/teardown in test stderr
+}
+
+test_implementing() {
+    true # set to 'false' to run all tests; set to 'true' to skip implemented tests
+    # only used while porting to bats: remove afterward
+}
+
 setup() {
-    echo 'setup' >&2
+    test_debug && echo 'setup' >&2
     NVM_DIR="${BATS_TMPDIR}"
     cd "${NVM_DIR}"
     rm -Rf src alias v*
@@ -14,21 +23,120 @@ setup() {
 }
 
 teardown() {
-    echo 'teardown' >&2
+    test_debug && echo 'teardown' >&2
     NVM_DIR="${BATS_TMPDIR}"
     cd "${NVM_DIR}"
     rm -Rf src alias v*
 }
 
 @test "'nvm' command defined in environment" {
+    test_implementing && skip
     run nvm
     assert_equal "$status" "0" "nvm command defined"
 }
 
 @test "Running 'nvm alias' should create a file in the alias directory." {
+    test_implementing && skip
     run nvm alias test v0.1.2
     [ "$status" -eq 0 ]
     result=$(cat "alias/test")
     assert_equal "$result" "v0.1.2" "expected new alias"
 }
 
+@test 'Running "nvm current" should display current nvm environment.' {
+    test_implementing && skip
+
+    run nvm deactivate
+
+    run nvm current
+    assert_match "$output" 'system|none' "expected 'none' or 'system' when deactivated"
+}
+
+@test 'Running "nvm deactivate" should unset the nvm environment variables.' {
+    test_implementing && skip
+
+    mkdir -p v0.2.3
+
+    # v0.2.3 should not be active
+    assert_nomatch "$PATH" ".*v0.2.3/.*/bin" "v0.2.3 should not be active yet"
+    [ `expr $PATH : ".*v0.2.3/.*/bin"` = 0 ]
+
+    x=$(nvm_version_path v0.2.3)
+
+    # can't use 'run' -- sets up new env, PATH is lost
+    nvm use 0.2.3
+
+    assert_match $PATH "v0.2.3/.*/bin" "PATH should contain v0.2.3"
+    assert_nomatch $NODE_PATH "v0.2.3/lib/node_modules" "NODE_PATH should not contain v0.2.3"
+
+    nvm deactivate
+    
+    assert_nomatch $PATH "v0.2.3/.*/bin" "PATH should be cleaned of v0.2.3"
+    assert_nomatch $NODE_PATH "v0.2.3/lib/node_modules" "NODE_PATH should not contain v0.2.3"
+}
+
+@test 'Running "nvm install" with "--reinstall-packages-from" requires a valid version' {
+    test_implementing && skip
+
+    mkdir -p v0.10.4
+
+    nvm deactivate
+
+    run nvm install v0.10.5 --reinstall-packages-from=0.11
+    assert_equal 5 "$status" "should exit with code 5, invalid version"
+    assert_match "$output" "If --reinstall-packages-from is provided, it must point to an installed version of node."
+
+    run nvm install v0.10.5 --reinstall-packages-from=0.10.5
+    assert_equal 4 "$status" "should exit with code 4, same version"
+    assert_match "$output" "You can't reinstall global packages from the same version of node you're installing."
+
+}
+
+@test 'Running "nvm install" with an invalid version fails nicely' {
+    test_implementing && skip
+
+    run nvm install invalid.invalid
+    assert_equal "3" "$status" "Invalid version, exit with status 3"
+    assert_match "$output" "Version 'invalid.invalid' not found - try \`nvm ls-remote\` to browse available versions." "nvm installing an invalid version did not print a nice error message"
+}
+
+@test 'Running "nvm unalias" should remove the alias file.' {
+    test_implementing && skip
+
+    echo v0.1.2 > alias/test
+
+    run nvm unalias test
+    ! [ -e alias/test ]
+}
+
+@test 'Running "nvm uninstall" should remove the appropriate directory.' {
+    test_implementing && skip
+
+    mkdir -p v0.0.1 src/node-v0.0.1
+
+    nvm uninstall v0.0.1
+    ! [ -d 'v0.0.1' ]
+    ! [ -d 'src/node-v0.0.1' ]
+}
+
+@test 'Running "nvm unload" should unset all function and variables.' {
+    test_implementing && skip
+
+    run type nvm
+    assert_equal 0 "$status" "nvm not loaded"
+
+    nvm unload
+
+    run type nvm
+    assert_equal 1 "$status" "nvm should have unloaded"
+}
+
+@test 'Running "nvm use foo" where "foo" is circular aborts' {
+    test_implementing && skip
+
+    echo 'foo' > alias/foo
+
+    run nvm use foo
+    assert_equal 8 "$status" "Expected exit code 8 (infinite alias loop)"
+    assert_match "$output" 'The alias "foo" leads to an infinite loop. Aborting.'
+}