gocomplete: run only runnable go files

when typing 'go run', the completion will complete only go files
which are in main package and have a main function.

1 files changed, 84 insertions, 0 deletions

diff --git a/gocomplete/tests_test.go b/gocomplete/tests_test.go
new file mode 100644
index 0000000..4eb2308
--- /dev/null
+++ b/gocomplete/tests_test.go
@@ -0,0 +1,84 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/posener/complete"
+)
+
+func TestPredictions(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name       string
+		predictor  complete.Predictor
+		last       string
+		completion []string
+	}{
+		{
+			name:       "predict tests ok",
+			predictor:  predictTest,
+			completion: []string{"TestPredictions", "Example"},
+		},
+		{
+			name:      "predict tests not found",
+			predictor: predictTest,
+			last:      "X",
+		},
+		{
+			name:       "predict benchmark ok",
+			predictor:  predictBenchmark,
+			completion: []string{"BenchmarkFake"},
+		},
+		{
+			name:      "predict benchmarks not found",
+			predictor: predictBenchmark,
+			last:      "X",
+		},
+		{
+			name:       "predict packages ok",
+			predictor:  complete.PredictFunc(predictPackages),
+			completion: []string{"./"},
+		},
+		{
+			name:      "predict packages not found",
+			predictor: complete.PredictFunc(predictPackages),
+			last:      "X",
+		},
+		{
+			name:       "predict runnable ok",
+			predictor:  complete.PredictFunc(predictRunnableFiles),
+			completion: []string{"./complete.go"},
+		},
+		{
+			name:      "predict runnable not found",
+			predictor: complete.PredictFunc(predictRunnableFiles),
+			last:      "X",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			a := complete.Args{Last: tt.last}
+			got := tt.predictor.Predict(a)
+			if want := tt.completion; !equal(got, want) {
+				t.Errorf("Failed %s: completion = %q, want %q", t.Name(), got, want)
+			}
+		})
+	}
+}
+
+func BenchmarkFake(b *testing.B) {}
+func Example()                   {}
+
+func equal(s1, s2 []string) bool {
+	if len(s1) != len(s2) {
+		return false
+	}
+	for i := range s1 {
+		if s1[i] != s2[i] {
+			return false
+		}
+	}
+	return true
+}