45 lines
989 B
Go
45 lines
989 B
Go
package execy
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import (
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"os/exec"
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"strings"
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"github.com/nalgeon/codapi/logx"
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)
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// Mock installs mock outputs for given commands.
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func Mock(commands map[string]CmdOut) *logx.Memory {
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if commands != nil {
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mockCommands = commands
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}
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mem := logx.NewMemory("exec")
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runner = &mockRunner{mem}
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return mem
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}
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// mockRunner returns mock outputs
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// without running OS programs.
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type mockRunner struct {
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mem *logx.Memory
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}
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// Run returns a mock output from the registry
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// that matches the given command name and argument.
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func (r *mockRunner) Run(cmd *exec.Cmd) error {
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cmdStr := strings.Join(cmd.Args, " ")
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r.mem.WriteString(cmdStr)
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key := cmd.Args[0] + " " + cmd.Args[1]
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out, ok := mockCommands[key]
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if !ok {
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// command is not in the registry,
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// so let's return an empty "success" result
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out = CmdOut{}
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}
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_, _ = cmd.Stdout.Write([]byte(out.Stdout))
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_, _ = cmd.Stderr.Write([]byte(out.Stderr))
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return out.Err
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}
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var mockCommands map[string]CmdOut = map[string]CmdOut{}
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