feat(cmd/gno): allow gno test to default to the current directory (#3453

)

This PR resolves #3420 by enhancing
the gno test command.
The command now assumes the current directory (.) as the default path
when no directory is specified, aligning its behavior with go test.

Changes to CI:

- Removed the no_args test.
- Added new tests to cover the following scenarios:
    - Valid test execution.
    - Valid file-based test.
    - Test with flags.
    - Empty directory.
    - Empty test file.

This PR is a repost of #3429 with a
cleaner commit history.

CC @notJoon @moul

---------

Co-authored-by: Nemanya21 <[email protected]>
Co-authored-by: Leon Hudak <[email protected]>

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) {})
+	}
+}