feat(cmd/gno): allow gno test to default to the current directory

gnovm/cmd/gno/test.go

@@ -146,8 +146,9 @@ func (c *testCfg) RegisterFlags(fs *flag.FlagSet) {
 }
 
 func execTest(cfg *testCfg, args []string, io commands.IO) error {
-	if len(args) < 1 {
-		return flag.ErrHelp
+	// Default to current directory if no args provided
+	if len(args) == 0 {
+		args = []string{"."}
 	}
 
 	// guess opts.RootDir
@@ -159,6 +160,7 @@ func execTest(cfg *testCfg, args []string, io commands.IO) error {
 	if err != nil {
 		return fmt.Errorf("list targets from patterns: %w", err)
 	}
+
 	if len(paths) == 0 {
 		io.ErrPrintln("no packages to test")
 		return nil

gnovm/cmd/gno/testdata/test/no_path_empty_dir.txtar

@@ -0,0 +1,6 @@
+# Run gno test without path argument on an empty dir 
+
+gno test
+
+! stdout .+
+stderr '[no test files]'

gnovm/cmd/gno/testdata/test/no_path_empty_gno.txtar

@@ -0,0 +1,8 @@
+# Test empty gno without path argument
+
+gno test
+
+! stdout .+
+stderr '\?       \. 	\[no test files\]'
+
+-- empty.gno --

gnovm/cmd/gno/testdata/test/no_path_flag_run.txtar

@@ -0,0 +1,99 @@
+# Run test on gno.land/p/demo/ufmt without path argument
+
+gno test
+
+gno test -v
+
+! stdout .+
+stderr '=== RUN   TestRun/hello'
+stderr '=== RUN   TestRun/hi_you'
+stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run .*
+
+! stdout .+
+stderr '=== RUN   TestRun/hello'
+stderr '=== RUN   TestRun/hi_you'
+stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run NotExists
+
+! stdout .+
+! stderr '=== RUN   TestRun'
+
+gno test -v -run .*/hello
+
+! stdout .+
+stderr '=== RUN   TestRun/hello'
+! stderr '=== RUN   TestRun/hi_you'
+! stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run .*/hi
+
+! stdout .+
+! stderr '=== RUN   TestRun/hello'
+stderr '=== RUN   TestRun/hi_you'
+stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run .*/NotExists
+
+! stdout .+
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run Run/.*
+
+! stdout .+
+stderr '=== RUN   TestRun/hello'
+stderr '=== RUN   TestRun/hi_you'
+stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run Run/
+
+! stdout .+
+stderr '=== RUN   TestRun/hello'
+stderr '=== RUN   TestRun/hi_you'
+stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+gno test -v -run Run/hello
+
+! stdout .+
+stderr '=== RUN   TestRun/hello'
+! stderr '=== RUN   TestRun/hi_you'
+! stderr '=== RUN   TestRun/hi_me'
+stderr '=== RUN   TestRun'
+stderr '--- PASS: TestRun'
+
+-- run.gno --
+package run
+
+-- run_test.gno --
+package run
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestRun(t *testing.T) {
+	cases := []string {
+		"hello",
+		"hi you",
+		"hi me",
+	}
+	for _, tc := range cases {
+		t.Run(tc, func(t *testing.T) {})
+	}
+}