cb7d5d1dd1
Gap fill: three no-infrastructure unit tests that run without TEST_DATABASE_URL or S3_ENDPOINT: - backend/templates/files_helpers_test.go — formatBytes boundary cases (B/KB/MB/GB) - backend/internal/files/store_unit_test.go — byteCountReader accumulation, io.ErrUnexpectedEOF guard for small files, and MultiReader body reconstruction after 512-byte sniff Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
package templates
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import "testing"
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// TestFormatBytes verifies that formatBytes converts byte counts to
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// human-readable strings correctly across all magnitude boundaries.
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func TestFormatBytes(t *testing.T) {
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cases := []struct {
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input int64
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want string
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}{
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// Bytes range: n < 1024
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{0, "0 B"},
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{1, "1 B"},
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{512, "512 B"},
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{1023, "1023 B"},
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// Kilobytes range: 1024 <= n < 1024*1024
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{1024, "1.0 KB"},
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{1536, "1.5 KB"},
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{1024 * 1024 - 1, "1024.0 KB"},
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// Megabytes range: 1024*1024 <= n < 1024*1024*1024
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{1024 * 1024, "1.0 MB"},
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{3670016, "3.5 MB"},
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{1024*1024*1024 - 1, "1024.0 MB"},
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// Gigabytes range: n >= 1024*1024*1024
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{1024 * 1024 * 1024, "1.0 GB"},
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{int64(1.5 * 1024 * 1024 * 1024), "1.5 GB"},
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}
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for _, tc := range cases {
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got := formatBytes(tc.input)
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if got != tc.want {
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t.Errorf("formatBytes(%d) = %q; want %q", tc.input, got, tc.want)
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}
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}
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}
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// TestFormatBytes_KBBoundary checks the exact 1024-byte boundary to confirm
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// the implementation crosses from "B" to "KB" at precisely n == 1024.
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func TestFormatBytes_KBBoundary(t *testing.T) {
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if got := formatBytes(1023); got != "1023 B" {
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t.Errorf("formatBytes(1023) = %q; want %q", got, "1023 B")
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}
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if got := formatBytes(1024); got != "1.0 KB" {
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t.Errorf("formatBytes(1024) = %q; want %q", got, "1.0 KB")
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}
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}
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// TestFormatBytes_MBBoundary checks the exact 1048576-byte boundary.
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func TestFormatBytes_MBBoundary(t *testing.T) {
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const mb = 1024 * 1024
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if got := formatBytes(mb - 1); got != "1024.0 KB" {
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t.Errorf("formatBytes(%d) = %q; want %q", mb-1, got, "1024.0 KB")
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}
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if got := formatBytes(mb); got != "1.0 MB" {
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t.Errorf("formatBytes(%d) = %q; want %q", mb, got, "1.0 MB")
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}
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}
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