fixed some bats tests (#698)

bats/1pk5col-ints.bats

@@ -337,7 +337,13 @@ teardown() {
     dolt branch test
     run dolt checkout test
     [ "$status" -eq 0 ]
-    skip "behavior ambiguous right now. should reset test table and switch to branch per git"
+    # Checks out branch "test" table "test" unaltered.  Matches git behavior for:
+    #
+    # git init
+    # git commit --allow-empty -m "create"
+    # touch test
+    # git branch test
+    # git checkout test
 }
 
 @test "make a change on a different branch, commit, and merge to master" {

bats/config.bats

@@ -41,7 +41,6 @@ teardown() {
     [ "$status" -eq 1 ]
     [[ "$output" =~ "wrong number of arguments" ]] || false
     run dolt config --global --add
-    skip "dolt config --global --add with no name value pair currently succeeds"
     [ "$status" -eq 1 ]
     [[ "$output" =~ "wrong number of arguments" ]] || false
 }
@@ -111,9 +110,24 @@ teardown() {
     run dolt config --local --get test
     [ "$status" -eq 0 ]
     [ "$output" = "local" ]
+    # will list both global and local values in list output
     run dolt config --list
     [ "$status" -eq 0 ]
-    skip "list option in config does not respect local overrides"
     [[ "$output" =~ "test = local" ]] || false
-    [[ ! "$output" =~ "test = global" ]] || false
+    [[ "$output" =~ "test = global" ]] || false
+    # will get the local value explicitly
+    run dolt config --get --local test
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "local" ]] || false
+    [[ ! "$output" =~ "global" ]] || false
+    # will get the global value explicitly
+    run dolt config --get --global test
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "global" ]] || false
+    [[ ! "$output" =~ "local" ]] || false
+    # will get the local value implicitly
+    run dolt config --get test
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "local" ]] || false
+    [[ ! "$output" =~ "global" ]] || false
 }

go/cmd/dolt/commands/config.go

@@ -174,7 +174,7 @@ func getOperation(dEnv *env.DoltEnv, setCfgTypes *set.StrSet, args []string, pri
 }
 
 func addOperation(dEnv *env.DoltEnv, setCfgTypes *set.StrSet, args []string, usage cli.UsagePrinter) int {
-	if len(args)%2 != 0 {
+	if len(args) == 0 || len(args)%2 != 0 {
 		cli.Println("error: wrong number of arguments")
 		usage()
 		return 1