# Tests for complex parameters to subgraphs

## subgraph with params passed by -

### Juttle

    sub fakemit(st, hertz, lim) {
      emit -from st -hz hertz -limit lim
    }
    fakemit -st Date.new(0) -hertz 1000 -lim 2 | view result

### Output

    { time: "1970-01-01T00:00:00.000Z" }
    { time: "1970-01-01T00:00:00.001Z" }

## subgraph with missing parameters

### Juttle

    sub fakemit(st, hertz, lim) {
      emit -from st -hz hertz -limit lim
    }
    fakemit -st Date.new(0) -lim 2 | view result

### Errors

   * Subgraph fakemit called without argument hertz

## subgraph with optional parameter (passed)

### Juttle

    sub fakemit(st, hertz, lim = 5) {
      emit -from st -hz hertz -limit lim
    }
    fakemit -st Date.new(0) -hertz 1000 -lim 2 | view result

### Output

    { time: "1970-01-01T00:00:00.000Z" }
    { time: "1970-01-01T00:00:00.001Z" }

## subgraph with optional parameter (not passed)

### Juttle

    sub fakemit(st, hertz, lim = 5) {
      emit -from st -hz hertz -limit lim
    }
    fakemit -st Date.new(0) -hertz 1000 | view result

### Output

    { time: "1970-01-01T00:00:00.000Z" }
    { time: "1970-01-01T00:00:00.001Z" }
    { time: "1970-01-01T00:00:00.002Z" }
    { time: "1970-01-01T00:00:00.003Z" }
    { time: "1970-01-01T00:00:00.004Z" }

## subgraph with -o (unsupported)

### Juttle
    const p = {st: 1};

    sub fakemit(st, hertz, lim) {
      emit -from st -hz hertz -limit lim
    }
    fakemit -o p -lim 2 | view result

### Errors

   * Subgraph fakemit called with invalid argument o

## subgraph with invalid parameters

### Juttle

    sub fakemit(st, hertz, lim) {
      emit -from st -hz hertz -limit lim
    }
    fakemit -st Date.new(0) -lim 2 -hz 100 | view result

### Errors

   * Subgraph fakemit called with invalid argument hz

## subgraph with params passed by - (module)

### Module `mitt`

    export sub fakemit(st, hertz, lim) {
      emit -from st -hz hertz -limit lim
    }

### Juttle

    import "mitt" as m;
    m.fakemit -st Date.new(0) -hertz 1000 -lim 2 | view result

### Output

    { time: "1970-01-01T00:00:00.000Z" }
    { time: "1970-01-01T00:00:00.001Z" }

## subgraph with optional params (passed, module)

### Module `mitt`

    export sub fakemit(st, hertz, lim = 5) {
      emit -from st -hz hertz -limit lim
    }

### Juttle

    import "mitt" as m;
    m.fakemit -st Date.new(0) -hertz 1000 -lim 2 | view result

### Output

    { time: "1970-01-01T00:00:00.000Z" }
    { time: "1970-01-01T00:00:00.001Z" }

## subgraph with optional params (not passed, module)

### Module `mitt`

    export sub fakemit(st, hertz, lim = 5) {
      emit -from st -hz hertz -limit lim
    }

### Juttle

    import "mitt" as m;
    m.fakemit -st Date.new(0) -hertz 1000 | view result

### Output

    { time: "1970-01-01T00:00:00.000Z" }
    { time: "1970-01-01T00:00:00.001Z" }
    { time: "1970-01-01T00:00:00.002Z" }
    { time: "1970-01-01T00:00:00.003Z" }
    { time: "1970-01-01T00:00:00.004Z" }

## subgraph with missing params (module)

### Module `mitt`

    export sub fakemit(st, hertz, lim) {
      emit -from st -hz hertz -limit lim
    }

### Juttle

    import "mitt" as m;
    m.fakemit -st Date.new(0) -lim 2 | view result

### Errors

   * Subgraph m.fakemit called without argument hertz