Add tests for some other command line option invocations.

Some more of the invocations are tested in this change:

  - bad switches
  - errors in configuration files
  - regular command, configuration and init command ordering
  - persistence of variables over command invocation.
  - interactive and login switch use
  - terminal exit code return
  - version request

There are sure to be other invocations that should be tested, but
these give a fair number of them a go.

tests/invocation/bad-switch.err

@@ -0,0 +1,2 @@
+./fish: invalid option -- 'Z'
+RC: 1

tests/invocation/bad-switch.invoke

@@ -0,0 +1 @@
+-Z

tests/invocation/broken-config-continues.config

@@ -0,0 +1,2 @@
+echo broken
+syntax-error

tests/invocation/broken-config-continues.err

@@ -0,0 +1,7 @@
+fish: Unknown command 'syntax-error'
+$XDG_CONFIG_HOME/fish/config.fish (line 2): 
+syntax-error
+^
+from sourcing file $XDG_CONFIG_HOME/fish/config.fish
+	called during startup
+

tests/invocation/broken-config-continues.invoke

@@ -0,0 +1 @@
+-c 'echo but still going'

tests/invocation/broken-config-continues.out

@@ -0,0 +1,2 @@
+broken
+but still going

tests/invocation/command-1.invoke

@@ -0,0 +1 @@
+-c "echo 1.2.3.4."

tests/invocation/command-1.out

@@ -0,0 +1 @@
+1.2.3.4.

tests/invocation/command-2.invoke

@@ -0,0 +1 @@
+-c "echo 1.2.3.4." -c "echo 5.6.7.8."

tests/invocation/command-2.out

@@ -0,0 +1,2 @@
+1.2.3.4.
+5.6.7.8.

tests/invocation/command-vars-persist.invoke

@@ -0,0 +1 @@
+-c 'set foo bar' -c 'echo $foo'

tests/invocation/command-vars-persist.out

@@ -0,0 +1 @@
+bar

tests/invocation/config-command-ordering.config

@@ -0,0 +1 @@
+echo in config.fish

tests/invocation/config-command-ordering.invoke

@@ -0,0 +1 @@
+-c "echo command" -C "echo init-command"

tests/invocation/config-command-ordering.out

@@ -0,0 +1,3 @@
+in config.fish
+init-command
+command

tests/invocation/config.config

@@ -0,0 +1 @@
+echo in config.fish

tests/invocation/config.invoke

@@ -0,0 +1 @@
+

tests/invocation/config.out

@@ -0,0 +1 @@
+in config.fish

tests/invocation/interactive.invoke

@@ -0,0 +1,3 @@
+-c 'if status --is-login ; echo login shell ; else ; echo not login shell ; end'
+-c 'if status --is-interactive ; echo interactive ; else ; echo not interactive ; end'
+-i

tests/invocation/interactive.out

@@ -0,0 +1,2 @@
+not login shell
+interactive

tests/invocation/login-interactive.invoke

@@ -0,0 +1,4 @@
+-c 'if status --is-login ; echo login shell ; else ; echo not login shell ; end'
+-c 'if status --is-interactive ; echo interactive ; else ; echo not interactive ; end'
+-l
+-i

tests/invocation/login-interactive.out

@@ -0,0 +1,2 @@
+login shell
+interactive

tests/invocation/login.invoke

@@ -0,0 +1,3 @@
+-c 'if status --is-login ; echo login shell ; else ; echo not login shell ; end'
+-c 'if status --is-interactive ; echo interactive ; else ; echo not interactive ; end'
+-l

tests/invocation/login.out

@@ -0,0 +1,2 @@
+login shell
+not interactive

tests/invocation/no-login-no-interactive.invoke

@@ -0,0 +1,2 @@
+-c 'if status --is-login ; echo login shell ; else ; echo not login shell ; end'
+-c 'if status --is-interactive ; echo interactive ; else ; echo not interactive ; end'

tests/invocation/no-login-no-interactive.out

@@ -0,0 +1,2 @@
+not login shell
+not interactive

tests/invocation/rc-returned.err

@@ -0,0 +1 @@
+RC: 1

tests/invocation/rc-returned.invoke

@@ -0,0 +1 @@
+-c 'false'

tests/invocation/version.grep

@@ -0,0 +1 @@
+^fish, version

tests/invocation/version.invoke

@@ -0,0 +1 @@
+-v

tests/invocation/version.out

@@ -0,0 +1 @@
+fish, version